Article
Chemistry, Multidisciplinary
Jaeyong Jeong, Seong Kwang Kim, Jongmin Kim, Dae-Myeong Geum, Duckhyun Kim, Eunju Jo, Hakcheon Jeong, Juyeong Park, Jae-Hyung Jang, Shinhyun Choi, Inyong Kwon, Sanghyeon Kim
Summary: Next-generation wireless communication requires high-frequency, multi-functionality, and power-efficient systems. To achieve this, researchers have been working on the monolithic integration of III-V compound semiconductor and Si CMOS technology. In this study, they successfully demonstrated heterogeneous and monolithic 3D analog/RF-digital mixed-signal integrated circuits that combine InGaAs HEMTs with high f(T) and f(MAX) and Si CMOS mixed-signal circuits, achieving high unity current gain cutoff frequency and power gain cutoff frequency without interference.
Editorial Material
Chemistry, Physical
Kaitlyn T. VanSant, Adele C. Tamboli, Emily L. Warren
Summary: Kaitlyn VanSant has a diverse academic background, focusing on research in solar cell design and applications of perovskite solar cells.
Article
Physics, Multidisciplinary
Chaodan Chi, Jiajie Lin, Xingyou Chen, Chengli Wang, Ziping Li, Liping Zhang, Zhanglong Fu, Xiaomeng Zhao, Hua Li, Tiangui You, Li Yue, Jiaxiang Zhang, Niefeng Sun, Peng Gao, Robert Kudrawiec, Shumin Wang, Xin Ou
Summary: This paper demonstrates and compares InGaAs p-i-n photodetectors on InP/SiO2/Si (InPOI) substrate fabricated by ion-slicing technology with identical devices on a commercial InP substrate. The photo responsivities at 1.55 μm are similar, indicating comparable performance between the two devices. The ion-slicing technology shows promise in enabling high-quality Si-based InP platforms for full photonic integration on a Si substrate.
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
(2021)
Article
Engineering, Electrical & Electronic
Gautham Rangasamy, Mamidala Saketh Ram, Lars Ohlsson Fhager, Lars-Erik Wernersson
Summary: This study investigates self-heating in vertical, gate-all-around III-V InAs/InGaAs nanowire MOSFETs using pulsed IV measurements at various temperatures. The results show a negative output conductance at low temperatures, indicating the presence of self-heating. Pulsed measurements at room temperature reveal an increase in drain current (15%) and transconductance (30%), influenced by the pulse width. The effect on performance is quantified by determining the thermal resistance and capacitance, as well as modeling a first order thermal circuit based on thermal impedances. The results indicate that self-heating is a limiting factor for device performance.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Optics
Yannick Baumgartner, Daniele Caimi, Marilyne Sousa, Marinus Hopstaken, Yannick Salamin, Benedikt Baeuerle, Bertold Ian Bitachon, Juerg Leuthold, Jerome Faist, Bert J. Offrein, Lukas Czornomaz
Summary: The article demonstrates ultra-compact high-speed III-V/Si photodetectors integrated on silicon photonics, showing high responsivity, bandwidth around 65 GHz, and data reception at 100 GBd OOK. These photodetectors are fabricated with processes and materials compatible with CMOS foundries, enabling integration in the back-end-of-line without using an amplifier to reduce power consumption.
Article
Energy & Fuels
T. Paulauskas, V Pacebutas, A. Geizutis, M. Kamarauskas, M. Drazdys, M. Rudzikas, R. Kondrotas, A. Naujokaitis, I Nevinskas, B. Sebeka, V Strazdiene, A. Krotkus
Summary: This study analyzes the potential of dilute GaAsBi as a subcell in III-V multijunction solar cells and proposes methods to improve performance by optimizing layer thickness and doping concentration.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Energy & Fuels
Karim Medjoubi, Jeremie Lefevre, Laura Vauche, Elias Veinberg-Vidal, Christophe Jany, Cedric Rostaing, Vincent Amalbert, Fabien Chabuel, Bruno Boizot, Romain Cariou
Summary: This study evaluates the potential of III-V//Si solar cell technology for space applications, presenting experimental results on degradation of wafer bonded 2-terminal III-V//Si solar cells under 1 MeV electrons irradiation. The impact of electron irradiation on effective diffusion length in the silicon bottom cell was calculated using the Internal Quantum Efficiency model. Paths towards higher EOL III-V//Si solar cells are discussed for improvement.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Enrico Brugnolotto, Heinz Schmid, Vihar Georgiev, Marilyne Sousa
Summary: Heterointerfaces and quantum wells were successfully achieved in III-V nanowires grown on a silicon oxide template. The yield of nanowires and composition control were evaluated, and the robustness of the process was demonstrated through forced merger of individual nanowires.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Energy & Fuels
Patrick Schygulla, Friedemann D. Heinz, Frank Dimroth, David Lackner
Summary: This article focuses on the material properties and usage of AlGaAs and GaInAsP as middle cell absorber materials in a wafer-bonded III-V//Si triple-junction solar cell. By optimizing the growth conditions, the efficiency of the solar cells was increased, with plans to implement these results into two-terminal III-V//Si triple-junction solar cells in the future.
IEEE JOURNAL OF PHOTOVOLTAICS
(2021)
Article
Nanoscience & Nanotechnology
Xin Zhang, Hui Yang, Yunyan Zhang, Huiyun Liu
Summary: This study systematically analyzes the challenges in achieving vertically-standing nanowire lasers and proposes a nanowire superlattice distributed Bragg reflector to greatly enhance the performance of the lasers.
Article
Optics
Stijn Cuyvers, Bahawal Haq, Camiel Op de Beeck, Stijn Poelman, Artur Hermans, Zheng Wang, Agnieszka Gocalinska, Emanuele Pelucchi, Brian Corbett, Gunther Roelkens, Kasper Van Gasse, Bart Kuyken
Summary: Research shows that leveraging ultra-low losses of silicon-nitride waveguides to manufacture a III-V-on-silicon-nitride integrated optical comb laser leads to superior performance, high efficiency, and low manufacturing costs.
LASER & PHOTONICS REVIEWS
(2021)
Article
Optics
Stanley Cheung, Geza Kurczveil, Yingtao Hu, Mingye Fu, Yuan Yuan, Di Liang, Raymond G. Beausoleil
Summary: This study discusses the design and demonstration of III-V/Si asymmetric Mach-Zehnder interferometers (AMZIs) and ring-assisted AMZI (de-)interleavers operating at O-band wavelengths. By utilizing wafer-bonded III-V/Si metal-oxide-semiconductor capacitor (MOSCAP) structures, ultra-low-power phase tuning and complete monolithic transceiver photonic integration have been achieved. The results show the lowest cross-talk (XT) levels and reconfiguration power consumption for athermal III-V/Si MOSCAP (de-)interleavers on a silicon platform.
PHOTONICS RESEARCH
(2022)
Article
Multidisciplinary Sciences
Ramy El-Bashar, Mohamed Hussein, Salem F. Hegazy, Yehia Badr, B. M. A. Rahman, Kenneth T. Grattan, Mohamed Farhat O. Hameed, Salah S. A. Obayya
Summary: The electrical characteristics of quad-crescent-shaped silicon nanowire solar cells were analyzed numerically to optimize performance, resulting in increased optical absorption and power conversion efficiency. The core-shell junction design showed an improvement of approximately 80% in conversion efficiency due to the high back surface field layer, with minimal impact from nanowire surface recombination compared to the axial junction.
SCIENTIFIC REPORTS
(2022)
Article
Energy & Fuels
Patrick Schygulla, Ralph Muller, David Lackner, Oliver Hohn, Hubert Hauser, Benedikt Blasi, Felix Predan, Jan Benick, Martin Hermle, Stefan W. Glunz, Frank Dimroth
Summary: By optimizing the III-V top structure, the efficiency of a two-terminal wafer-bonded III-V//Si triple-junction solar cell was increased from 34.1% to 35.9%. The integration of a GaInAsP absorber in the middle cell led to an increase in open-circuit voltage, while better current matching of all subcells enhanced the short-circuit current. An upright grown structure achieved the highest cell efficiency of 35.9%, showcasing future improvement opportunities and limits.
PROGRESS IN PHOTOVOLTAICS
(2022)
Article
Optics
Yaonan Hou, Ilias Skandalos, Mingchu Tang, Hui Jia, Huiwen Deng, Xuezhe Yu, Yasir Noori, Spyros Stathopoulos, Siming Chen, Huiyun Liu, Alwyn Seeds, Graham Reed, Frederic Gardes
Summary: We investigate the surface and interface engineering on InAs quantum dot emitters using edge-emitting light-emitting diodes encapsulated with non-stoichiometric silicon nitride (SiN) layers. Our findings show that silicon-rich SiN is an excellent choice for both electrical and optical passivation, reducing surface recombination. However, N-rich SiN deposited by the same method does not provide effective passivation under electrical injection. This research provides important insights for the monolithic integration of InAs quantum dot emitters with CMOS photonics components.
JOURNAL OF LUMINESCENCE
(2023)
Article
Physics, Multidisciplinary
Seyed Ebrahim Hashemi Amiri, Sunay Turkdogan, Praneeth Ranga, Fan Fan, Lin Gan, Cun-Zheng Ning
Summary: This paper reports new results on growing GaP nanowires using chemical vapor deposition method, where the important role of elemental P source in improving chemical balance, inhibiting incongruent sublimation, and growing high stoichiometric GaP nanowires with high optical quality was discovered. The study also found correlations between growth parameters and nanowire stoichiometry, quality, and performance.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS
(2022)
Article
Microscopy
Jian-Min Zuo, Renliang Yuan, Yu-Tsun Shao, Haw-Wen Hsiao, Saran Pidaparthy, Yang Hu, Qun Yang, Jiong Zhang
Summary: Transmission electron diffraction is an important method for material characterization, which allows the collection and processing of diffraction patterns to extract crystallographic information and generate images or tomograms. Recent progress in data collection, new algorithms, and automated analysis has wide applications in materials research and future opportunities in smart sampling and machine learning.
Article
Multidisciplinary Sciences
Jiabin Feng, Yongzhuo Li, Jianxing Zhang, Yuqian Tang, Hao Sun, Lin Gan, Cun-Zheng Ning
Summary: This article introduces a novel approach for current injection in electroluminescent devices using the large exciton binding energies in 2D materials to generate excitons through an alternating electric field without the need for metal contacts. The authors demonstrate high conversion efficiency at room temperature and the ability to operate at multiple wavelengths.
Article
Chemistry, Multidisciplinary
Qinwen Lu, Zhiwei Liu, Qun Yang, Hui Cao, Purnima Balakrishnan, Qing Wang, Long Cheng, Yalin Lu, Jian-Min Zuo, Hua Zhou, Patrick Quarterman, Shin Muramoto, Alexander J. Grutter, Hanghui Chen, Xiaofang Zhai
Summary: This study discovers unexpected soft ferromagnetism in ultrathin freestanding LaMnO3 films, both in the in-plane and out-of-plane directions. This finding is important for nanoscale devices, and the ultrathin freestanding films are compatible with Si-based devices.
Article
Optics
Aris Koulas-Simos, Georgios Sinatkas, Taiping Zhang, Jia-Lu Xu, William E. Hayenga, Qiang Kan, Ruikang Zhang, Mercedeh Khajavikhan, Cun-Zheng Ning, Stephan Reitzenstein
Summary: We report on the extraction of silver losses in the temperature range of 10 K-180 K using temperature-dependent micro-photoluminescence measurements and numerical simulations on silver-coated nanolasers near infrared telecommunication wavelengths. By mapping changes in the nanolaser's quality factor to silver-loss variations, we extracted the imaginary part of the silver permittivity at cryogenic temperatures and estimated the temperature-dependent values for the thermo-optic coefficient of III-V semiconductors occupying the cavity. These findings are crucial for device modeling and have practical implications for device designing and evaluating thermal effects in silver-coated nanophotonic structures.
Article
Nanoscience & Nanotechnology
Saran Pidaparthy, Mei Luo, Marco-Tulio F. Rodrigues, Jian-Min Zuo, Daniel P. Abraham
Summary: This study reveals the heterogeneous physicochemical evolution of silicon anodes in lithium-ion cells, and its correlation with capacity fade. It is found that silicon particles near the anode surface react differently from those near the copper current collector. Material and cell designs are needed to minimize electrode expansion and enhance anode homogeneity.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Multidisciplinary Sciences
Gangbin Yan, George Kim, Renliang Yuan, Eli Hoenig, Fengyuan Shi, Wenxiang Chen, Yu Han, Qian Chen, Jian-Min Zuo, Wei Chen, Chong Liu
Summary: The authors investigate the co-intercalation of lithium and sodium ions in iron phosphate electrodes and demonstrate the control of lithium selectivity through intercalation kinetic manipulations. By increasing the energy barrier for sodium-ion intercalation using non-equilibrium solid-solution lithium seeding or remnant lithium, the lithium selectivity is enhanced.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ran Li, Zongpeng Song, Haiou Zhu, Fanglin Zhang, Lingling Chen, Cun-Zheng Ning, Shuangchen Ruan
Summary: This paper presents a new strategy for ultrasensitive detection based on color-switchable lasing with a cavity-enhanced reduction of LOD, achieving highly sensitive detection of biomarkers. By embedding dye into polystyrene microsphere cavities, it enables in vivo compatible biomarker detection with improved visual distinguishability through color changes.
Article
Engineering, Electrical & Electronic
Xing Zhang, Guorui Zhang, Yue Wen, Wendou Zhang, Hui Li, Yongqiang Ning, Cunzheng Ning, Lijun Wang, Wenwei Xu
Summary: Successful error-free 50 Gbit/s PAM4 data transmission over 500-m single mode fiber was achieved using our oxide-confined 880-nm single-mode high-speed VCSELs. The proposed VCSEL shows a wide bias span with a flat frequency response, making it suitable for 400G DR8 modules, with evident advantages in cost and power consumption compared to commonly used DML.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Optics
Jialu Xu, Taiping Zhang, Yongzhuo Li, Jianxing Zhang, Zhen Wang, Qiang Kan, Ruikang Zhang, Cun-Zheng Ning
Summary: This article demonstrates a new threshold-reduction strategy in a silver-cup plasmonic nanolaser by selectively confining plasmonic modes at the high-quality naturally cleaved surfaces at the bottom, while avoiding the rough etched surfaces of the sidewall. The nanolaser has a subwavelength volume with a record-low threshold and meets the power-consumption requirement for on-chip optical interconnects in photonic integrated circuits.
LASER & PHOTONICS REVIEWS
(2023)
Article
Multidisciplinary Sciences
Haw-Wen Hsiao, Rui Feng, Haoyang Ni, Ke An, Jonathan D. Poplawsky, Peter K. Liaw, Jian-Min Zuo
Summary: This study reveals the impacts of short-range ordering on chemical homogeneity and dislocation slip in a CrCoNi alloy using a diffraction data-mining analysis. The results show the existence of two types of short-range ordering in nanoclusters, which significantly affect the mechanical strength of the material. These findings provide important opportunities for atomistic-structure study and design in concentrated alloys.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ruiling Zhang, Lin Gan, Danyang Zhang, Hao Sun, Yongzhuo Li, Cun-Zheng Ning
Summary: Heterostructures formed by 2D TMDCs and graphene are important for exploring interface physics and optoelectronic devices. This study successfully disentangled the effects of light-induced charge transfer, heating, and strain in WS2/graphene heterostructure. The results show that without separating these effects, the estimation of carrier density may have significant errors, and this approach provides a way for understanding the properties of heterostructures comprehensively.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Microscopy
Saran Pidaparthy, Haoyang Ni, Hanyu Hou, Daniel P. Abraham, Jian-Min Zuo
Summary: Four-dimensional scanning transmission electron microscopy (4D-STEM) is a powerful tool for investigating the structural properties of materials. However, it is challenging to analyze disordered materials, especially in technologically important samples with a mixture of ordered and disordered phases. In this study, a new 4D-STEM method called fluctuation cepstral STEM (FC-STEM) is introduced, which uses fluctuation analysis of diffraction patterns to map ordered and disordered phases. The principles of FC-STEM are demonstrated by characterizing a silicon anode from a lithium-ion battery, showing its effectiveness in determining the structure of mixed-phase amorphous materials.
Article
Engineering, Electrical & Electronic
Jinsong Cui, Fufei An, Jiangchao Qian, Yuxuan Wu, Luke L. Sloan, Saran Pidaparthy, Jian-Min Zuo, Qing Cao
Summary: Oxide-based solid-state protonic electrochemical transistors can operate by transferring protons between a hydrogenated tungsten oxide channel and gate through a zirconium dioxide protonic electrolyte. These devices offer multistate and symmetric programming of channel conductance via gate-voltage pulse control and have small cycle-to-cycle variation. They can be programmed at frequencies approaching the megahertz range and exhibit enduring performance. Through monolithic integration with silicon transistors, they can be used to create efficient deep learning accelerator applications.
NATURE ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Haoyang Ni, Zhenyao Wu, Xinyi Wu, Jacob G. Smith, Michael J. Zachman, Jian-min Zuo, Lili Ju, Guannan Zhang, Miaofang Chi
Summary: The atomic configurations of atomically dispersed catalysts (ADCs), such as atom-atom distances and clustering, greatly affect their catalytic performance. This study presents a CNN-based algorithm that can quantify the spatial arrangement of different adatom configurations. The algorithm was proven effective in accurately identifying atom positions and analyzing large data sets of ADCs. It offers a robust method to overcome the bottleneck in STEM analysis for ADC catalyst research and has the potential to be used as an on-the-fly analysis tool for catalysts in future in situ microscopy experiments.
