One of the remarkable features of indium selenides is their exceptional electron mobility, which can exceed 1,000 cm² V⁻¹ s⁻¹. This high mobility enables faster charge transport, crucial for the operation of ultra-scaled transistors needed in modern computing applications. As the demand for rapid processing speeds increases, enabling technologies that can deliver higher mobility will play a critical role in enhancing the performance of electronic devices. Furthermore, the high thermal velocity—greater than 2 × 10⁷ cm s⁻¹—ensures that indium selenides can handle high-speed operations without significant energy loss.

Another advantage of these materials is their thickness-tunable bandgaps, ranging from 0.97 eV to 2.5 eV. This tunability allows for the design of energy-efficient devices that can operate across a wide spectrum of applications, from low-power electronics to high-performance photodetectors. The ability to tune the bandgap also facilitates the creation of devices with optimal performance characteristics tailored to specific needs, potentially leading to advances in ultrafast photonics and optoelectronics.

In addition to their electronic properties, indium selenides possess unique phase-dependent ferroelectric properties, enabling them to function as both logic devices and non-volatile memory elements within a single material system. This dual capability is essential for next-generation computing architectures that require efficient data storage, retrieval, and processing without the auxiliary circuitry typically associated with traditional semiconductor materials. The ability to integrate these functions into a single chip could significantly reduce manufacturing complexities and enhance overall device performance.

Recent advancements in ballistic transport in InSe transistors have laid the groundwork for next-generation computing devices. Ballistic transport refers to the regime where carriers move through the material without being scattered by defects or phonons, resulting in a significant improvement in device performance. Researchers have been able to demonstrate such ballistic transport in InSe transistors, highlighting their potential to outperform silicon-based devices in terms of speed and energy efficiency.

The development of tunnel field-effect transistors (TFETs) based on indium selenides marks another breakthrough in low-power electronics. TFETs leverage the unique band structure of indium selenides to achieve steep subthreshold slopes, which can enable lower operating voltages and thereby reduce power consumption. This is especially beneficial in modern computing applications where power efficiency and thermal management are paramount for sustaining high performance over extended periods.

In addition to their electronic properties, indium selenides also show promise in ferroelectric device applications. The exploitation of the ferroelectric characteristics of In₂Se₃ paves the way for innovative non-volatile memory solutions that can function alongside traditional logic devices. These ferroelectric memory elements can store data by inducing polarization within the material, offering advantages such as low power consumption and faster read/write times compared to conventional memory technologies.

However, challenges in the fabrication and processing of indium selenides remain a significant obstacle to their widespread adoption. Addressing these challenges is critical to translate their theoretical advantages into commercially viable solutions. Researchers are actively investigating scalable synthesis methods that can produce high-quality samples of indium selenides, which are essential for developing reliable electronic components.

Phase control is another key challenge when working with indium selenides. The ability to manipulate the phase states of these materials—given their complex phase diagrams—is critical for optimizing device performance. This includes transitioning between different structural phases, which can dramatically affect their electronic and optical properties. Implementing techniques for stabilized phase control will be vital for fostering the consistent performance of devices based on these materials.

Oxidation is also a significant concern that can impact the stability and performance of indium selenide devices. The exposure of these materials to ambient conditions may lead to undesirable oxidation, resulting in degradation of their electro-optical properties. Innovative strategies for oxidation prevention and encapsulation will be necessary to enhance the lifespan and reliability of indium selenide-based devices, particularly in real-world applications where environmental exposure is unavoidable.

Ultimately, bridging fundamental materials science with practical device engineering offers a roadmap for utilizing the exceptional properties of indium selenides in developing commercial low-power computing technologies. By focusing research efforts on the synthesis methods, phase stability, and oxidation prevention, scientists can overcome existing barriers and unlock the potential of indium selenides as alternatives to silicon-based technology.

The vision of integrating indium selenides into next-generation computing architectures entails the development of innovative devices capable of meeting the demands of modern electronics. As researchers continue to explore the capabilities of these materials, they pave the way for advanced applications that could reshape computing paradigms. The journey toward realizing indium selenides as a cornerstone of future electronics promises not only enhanced performance but also the evolution of how computing devices are conceived and utilized.

The endeavor to harness indium selenides for electronic applications is underpinned by a commitment to sustainable and efficient technology. As the industry faces mounting pressure to reduce energy consumption, the transition to low-power materials like indium selenides could represent a pivotal shift in electronic design and manufacturing. By prioritizing their adoption, we can ensure that next-generation devices are not only high-performing but also environmentally conscious, setting new standards for tech innovation in the years to come.

In summary, van der Waals indium selenides hold enormous promise for the future of low-power computing, standing at the intersection of material science and electronic engineering. Their unmatched electronic properties, combined with their unique functionalities, herald a new era of device possibilities that could ultimately challenge and surpass the longstanding dominance of silicon in the microelectronics sector.

Subject of Research: Indium Selenides for Low-Power Electronics

Article Title: Indium selenides for next-generation low-power computing devices

Article References:

Song, S., Altvater, M., Lee, W. et al. Indium selenides for next-generation low-power computing devices.
Nat Rev Electr Eng (2026). https://doi.org/10.1038/s44287-025-00251-w

Image Credits: AI Generated

DOI: 10.1038/s44287-025-00251-w

Keywords: Indium Selenides, Low-Power Electronics, Semiconductor Technology, Ballistic Transport, Ferroelectric Devices

The FETs in these arrays have been constructed without the passivation layer of hexagonal boron nitride (hBN), which is often considered a reliable insulating layer in various applications. The omission of this layer was a strategic choice, emphasizing practical scalability in production while achieving optimal performance in real-world conditions. Notably, the research team managed to create ohmic contacts using bismuth as the source and drain, which was confirmed through the measured current-voltage (I-V) characteristics of the devices.

One of the standout features of the FETs is their transfer characteristics, showcasing an extraordinary sharp subthreshold swing (SS) of 65 mV per decade at room temperature. This characteristic represents a significant achievement as it approaches the theoretical limit of 60 mV per decade, which is crucial in determining the performance efficiency of transistors. Furthermore, the on/off current ratio of these devices exceeds 10⁷, underlining their applicability in advanced digital applications where low power consumption and high operational speed are essential.

Statistics gathered from the analysis of 64 individual FETs within the array illustrate an average field-effect mobility (μ_FET) of approximately 100 cm²V⁻¹s⁻¹, establishing performance metrics that surpass those achieved in previous demonstrations of epitaxial MoS₂ monolayers. This impressive mobility is attributed to the superior quality of the single-crystal MoS₂ monolayers, which, in turn, is a result of the efficient epitaxial growth technique employed in the study.

The research also delves into the statistical distribution of SS and mobility across the devices, highlighting that the devices maintained an SS range between 65 and 75 mV per decade. This spread showcases the consistency and reliability of the fabrication method, essential traits for commercial applications. Remarkably, this work outperformed earlier examples of epitaxial MoS₂ that employed similar growth techniques, which reported lower mobilities and higher SS values.

The impressive SS value presented in this study can greatly be linked to the reduced density of defects in the MoS₂ monolayers. Defect states often create charge traps that adversely affect the electronic characteristics of semiconductors, leading to non-ideal transistor behaviors such as increased SS values. By minimizing these defects through advanced growth techniques, the researchers have not only improved device performance but also derived deeper insights into the fundamental physics of material properties.

Previous advancements have already explored the epitaxial growth of MoS₂ single crystals on substrates such as c-plane sapphire, indicating an ongoing interest in exploiting various substrate materials to tailor electronic properties. Studies documenting average μ_FET values of about 78 cm²V⁻¹s⁻¹ and higher SS values around 120 mV per decade emphasize the progressive evolution of this field. The comparative analysis with this newer work signifies the continual stairway of innovation leading towards the realization of more efficient two-dimensional electronic devices.

The implication of such findings heralds a new chapter in semiconductor research, particularly for applications requiring low power and high scalability. Considering the growing demands for more efficient electronic components capable of operating at faster speeds with reduced power requirements, this innovative research provides a foundation for future development. The integration of MoS₂ into FET arrays, with its optimal performance innovations, demonstrates a plausible route to overcoming existing challenges in semiconductor technology.

The current approach not only addresses previous limitations seen in two-dimensional material utilization but also enhances the potential for implementing these advanced devices in real-world scenarios. With increasing emphasis on sustainable and efficient technologies, the advancements reported hold promise for a myriad of applications in automotive, consumer electronics, and beyond.

Moreover, this recent work underscores the significance of material quality in the performance of electronic components. As researchers continue to explore the intersections of material science and electronic engineering, the insights gleaned from this study can help to inform future innovations and lead to even higher performance thresholds.

Ultimately, the forward strides made in this research signify an important milestone in materials science and semiconductor physics. With a focus on achieving coherence in quantum transport within single-crystalline structures via effective epitaxy, there remains significant potential for exciting breakthroughs in technology development. These findings not only expand the knowledge surrounding two-dimensional materials like MoS₂ but also spark curiosity about the vast possibilities that lie ahead in this rapidly advancing field of study.

The researchers’ efforts exemplify the interdisciplinary nature of modern scientific inquiry, blending aspects of physics, engineering, and nanotechnology to achieve groundbreaking results. As we move forward, the need for efficient and scalable semiconductor technologies becomes increasingly imperative, and studies like these provide the necessary groundwork for realizing that vision.

In conclusion, the integration of single-crystalline MoS₂ in FET arrays represents a significant engineering achievement. It illustrates the incredible potential of these materials within the electronics landscape, shaping the future of computing and communication technologies. Continued exploration and refinement of these approaches are set to unlock further innovations, ultimately leading to more sustainable and efficient electronic devices that redefine our technological experience in the years to come.

Subject of Research: Advances in Single-Crystalline MoS₂ Field-Effect Transistor Arrays

Article Title: Single-crystalline monolayer semiconductors with coherent quantum transport by vicinal van der Waals epitaxy

Article References:

Moon, G., Lee, SH., Cho, H. et al. Single-crystalline monolayer semiconductors with coherent quantum transport by vicinal van der Waals epitaxy.
Nat Electron (2025). https://doi.org/10.1038/s41928-025-01496-x

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s41928-025-01496-x

Keywords: MoS₂, field-effect transistor, epitaxy, monolayer semiconductor, quantum transport, defect density, electronic properties, two-dimensional materials.

The crux of the thermal management issue lies in the low thermal conductivity of interlayer dielectrics and the intricate interfaces formed during the 3D integration process. As heat builds up in densely packed components, efficient heat dissipation becomes essential to prevent overheating, which can compromise performance and reduce the lifespan of integrated circuits. Therefore, addressing these thermal challenges is vital for the continued advancement and reliability of 3D-stacked integrated circuits. As researchers delve deeper into this subject, state-of-the-art thermal management materials emerge as a beacon of hope—a pathway to not only mitigate heat buildup but also optimize the performance of these next-generation technologies.

In recent years, researchers have been working diligently to develop novel thermal management materials that address the unique challenges posed by 3D stacking. These materials must exhibit high thermal conductivity and robust performance characteristics while maintaining process compatibility with existing fabrication technologies. The integration of such materials into manufacturing pipelines is of utmost importance. As the semiconductor landscape continually evolves, materials must not only meet stringent performance requirements but also seamlessly assimilate into established processes to ensure scalability and economic feasibility.

Complex interfaces can often hinder effective heat transfer, making it imperative to explore methods to improve heat transport across these junctions. The effectiveness of thermal management materials is contingent not just on their inherent properties but also on their interaction with adjacent materials and layers. Innovative approaches that enhance the thermal interaction at interfaces could lead to significant advancements in thermal performance, perhaps presenting a solution to the ongoing challenges faced in 3D integrated circuit design.

Advanced thermal characterization techniques have emerged as indispensable tools for evaluating the efficacy of thermal management strategies. These methodologies enable the assessment of thermal conductivity, interface quality, and overall system performance in real-time. However, the demand for non-destructive in-line metrology has never been more urgent. As the industry strives for greater efficiency and reliability, it becomes paramount to introduce techniques that allow for continuous monitoring and assessment of thermal properties during the manufacturing process, thus facilitating timely intervention when performance issues arise.

As we push toward a future where 3D integration becomes the standard, a cohesive roadmap for research and development is essential. This roadmap should incorporate innovative material growth strategies, novel integration techniques, and sophisticated characterization methods to create a holistic understanding of thermal dynamics in stacked architectures. Establishing clear directions for future research can expedite progress in developing practical thermal solutions that comply with the rigors of next-generation semiconductor applications.

Collaboration between academia, industry, and research institutions is crucial in this endeavor. By pooling expertise and resources, stakeholders can address the multifaceted challenges of thermal management collectively. This collaboration can lead to breakthroughs in not only material science but also in the design of systems that optimize thermal performance, ensuring the longevity and efficiency of advanced 3D integrated circuits.

Moreover, as the exploration of thermal management materials progresses, lessons learned from earlier generations of semiconductor technologies provide invaluable insights. Historical perspectives on thermal management issues reveal patterns that can help shape current research efforts. By understanding previous challenges and solutions, researchers can avoid repeating past mistakes and instead innovate more effectively.

The role of nanotechnology cannot be understated in this conversation about thermal management. Nanoscale materials and structures offer unique physical properties that can dramatically enhance thermal conductivity and efficiency. As researchers develop new nanomaterials optimized for thermal transport, the potential to revolutionize heat management in 3D-stacked circuits becomes palpable.

In summary, the challenges posed by 3D integration in semiconductor technology are significant but not insurmountable. The journey toward achieving optimal thermal management involves not only the identification and development of superior materials but also the formulation of effective strategies for their integration and characterization. By focusing on the intricate relationship between materials, interfaces, and emerging technologies, the semiconductor industry can cultivate the necessary innovations required for a new era of high-performance computing and artificial intelligence.

As we move forward, the need for continuous evaluation and adaptation of thermal solutions in 3D integration will only grow. The exploration of advanced materials, in conjunction with innovative manufacturing processes and characterization techniques, promises a robust framework for enhancing thermal management efficiency. Stakeholders across various sectors will need to keep a close watch on emerging trends and research findings that could redefine the landscape of 3D-integrated circuit technology for years to come.

Recent developments suggest that the pursuit of groundbreaking thermal materials will be a linchpin in the evolution of semiconductor technology. With the right combination of research, collaboration, and innovation, we stand on the cusp of unlocking unprecedented capabilities in processing power, efficiency, and overall performance. This collective commitment to advancing thermal management solutions represents a pivotal moment for the semiconductor industry as it adeptly adapts to the increasing demands of modern high-performance applications.

Through a unified effort, the transformation of thermal management in 3D-stacked integrated circuits will pave the way for novel applications in artificial intelligence and beyond. The future of semiconductor technology hinges on merging science, engineering, and vision, ensuring that the iconic 3D architectures become the foundational bedrock for the next generation of intelligent systems.

Subject of Research: Thermal management materials for 3D-stacked integrated circuits.

Article Title: Thermal management materials for 3D-stacked integrated circuits.

Article References:

Woon, WY., Kasperovich, A., Wen, JR. et al. Thermal management materials for 3D-stacked integrated circuits.
Nat Rev Electr Eng 2, 598–613 (2025). https://doi.org/10.1038/s44287-025-00196-0

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s44287-025-00196-0

Keywords: thermal management, 3D integration, semiconductor technology, heat dissipation, advanced materials, high-performance computing, artificial intelligence, thermal conductivity, interface engineering, nanotechnology, thermal characterization.

The study outlines the semiconductor industry, characterized by its relentless pace of innovation and demand for high-performance materials and devices. Semiconductors serve as the backbone of modern electronics, powering everything from smartphones to renewable energy technologies. KAIST’s emphasis on semiconductor research addresses the ongoing challenges in fabrication techniques and material science, presenting solutions that could revolutionize the industry. By tapping into advanced materials, the researchers delve into possibilities that could lead to more efficient, compact, and powerful electronic devices.

One of the focal areas of this research is the pursuit of next-generation semiconductor materials. Traditional silicon-based semiconductors, while effective, are nearing their limits in terms of performance. Researchers at KAIST are investigating alternative materials, such as gallium nitride and graphene, which promise enhanced efficiency and miniaturization. These materials exhibit remarkable electronic and thermal properties and could potentially outperform silicon in certain applications. The implications of such advancements could be vast, ranging from consumer electronics to electric vehicles and beyond.

Another significant aspect of the research at KAIST is the integration of artificial intelligence (AI) in semiconductor development. AI has begun to play an invaluable role in design optimization and predictive modeling, allowing researchers to simulate the behavior of materials under various conditions, thereby accelerating the discovery process. By leveraging machine learning algorithms, the team at KAIST is streamlining the iterative process of material discovery, which traditionally relied heavily on trial and error. This synergy between AI and materials science not only reduces research timelines but also fosters innovations that could lead to groundbreaking improvements.

KAIST also emphasizes the importance of interdisciplinary collaboration in semiconductor research. The convergence of chemistry, physics, electrical engineering, and computer science at KAIST results in a creative nexus where diverse expertise coalesces. This collaborative environment nurtures a culture of innovation, encouraging researchers to think outside the box and explore uncharted territories. Such interdisciplinary approaches are increasingly essential as the complexity of semiconductor devices increases, demanding novel solutions and creative thinking.

The educational framework at KAIST mirrors this innovative spirit. The institute offers robust programs focused on semiconductor engineering, boasting a curriculum designed to cultivate the next generation of leaders in the field. Students are not only exposed to theoretical aspects of semiconductor science but are also engaged in hands-on research projects that challenge them to apply their learning in real-world scenarios. This experiential pedagogy ensures that graduates are equipped with both the knowledge and practical skills to tackle future challenges in the semiconductor arena.

Moreover, the researchers’ commitment to fostering a sustainable future is evident in their examination of green semiconductor technologies. The study highlights how advancements in materials and processes can lead to reduced environmental impact. For instance, energy-efficient semiconductor devices are pivotal in enhancing the performance of solar cells and other renewable energy systems. By making semiconductor technology more sustainable, KAIST researchers are actively contributing to the global transition toward cleaner energy sources and more efficient devices.

As the semiconductor industry continues to grow, so does its need for sustainable practices in manufacturing and production. The research at KAIST tackles these pressing issues head-on, exploring methods to minimize waste and optimize energy use during the semiconductor fabrication process. Innovations in manufacturing technologies, including automated fabrication and eco-friendly materials, could set new standards for sustainability in the electronics sector.

The implications of this research extend beyond academia, reaching into industry partnerships that KAIST has developed over the years. Collaborations with leading semiconductor companies ensure that the research findings are translated into practical applications. These partnerships also provide students and researchers with valuable industry insights, preparing them to transition seamlessly from academic environments to professional roles in this dynamic field.

In addition, KAIST plays a significant role in honing regional competitiveness in the semiconductor sector. By positioning itself at the forefront of semiconductor research and education, KAIST contributes to South Korea’s prominence in the global semiconductor market. This leadership not only fosters innovation but also attracts investment and talent to the region, reinforcing South Korea’s strategic interests in technology and manufacturing.

The global semiconductor industry is not without challenges, as geopolitical tensions and supply chain disruptions threaten to impact the future of technology. Research initiatives at KAIST aim to address these uncertainties by designing resilient semiconductor ecosystems that can withstand external shocks. By exploring local sourcing and autonomous manufacturing methods, they advocate for a future where the semiconductor supply chain is robust and less susceptible to external disruptions.

In conclusion, KAIST’s commitment to advancing semiconductor research and education is shaping the landscape of this vital industry. The continuous innovations driven by the research team comprising Kim, Yoon, and Choi illustrate the potential for semiconductors to propel technological advancement in various sectors. Their work embodies an ethos of inquiry and collaboration that not only addresses current challenges but also lays the groundwork for future breakthroughs. As the world moves forward, the semiconductor research at KAIST will undoubtedly remain a cornerstone of technological progress, influencing everything from consumer electronics to sustainable energy solutions and beyond.

The insights garnered from this research underline the importance of continued investment in semiconductor technology and education. As we enter a new era defined by rapid technological change, the role of institutions like KAIST will prove crucial in not only navigating this landscape but also in leading it.

Subject of Research: Semiconductor-related research and education at KAIST

Article Title: Semiconductor-related research and education at KAIST

Article References:

Kim, K.M., Yoon, YG., Choi, S. et al. Semiconductor-related research and education at KAIST.
Nat Rev Electr Eng 2, 592–597 (2025). https://doi.org/10.1038/s44287-025-00204-3

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s44287-025-00204-3

Keywords: Semiconductor technology, materials science, artificial intelligence, sustainability, KAIST.