Review
Energy & Fuels
Jiaying Chen, Youtian Mo, Chaoying Guo, Jiansen Guo, Bingshe Xu, Xi Deng, Quan Xue, Guoqiang Li
Summary: The combination of III-V compound semiconductor materials and organic semiconductor materials is a potential pathway to solve the problems of conventional doped p-n junction solar cells. This review presents the recent progress of organic-inorganic hybrid solar cells based on polymers and III-V semiconductors, including materials, devices, growth processes, patterning and etching processes, advanced device structure designs, and optimization pathways for efficiency enhancement. The future development of such hybrid cells is also discussed.
Review
Chemistry, Multidisciplinary
Miguel Sinusia Lozano, Victor J. Gomez
Summary: Crystal phase quantum dots are formed during the axial growth of III-V semiconductor nanowires and both zinc blende and wurtzite phases can coexist in these nanowires. The ability to control crystal phase switching at the atomic level has been achieved. This review focuses on crystal phase quantum dots based on III-V nanowires and their optical and electronic properties, which are highly desirable for nanophotonics and quantum technologies.
NANOSCALE ADVANCES
(2023)
Article
Physics, Multidisciplinary
N. Carlon Zambon, Z. Denis, R. De Oliveira, S. Ravets, C. Ciuti, I. Favero, J. Bloch
Summary: By embedding quantum wells into semiconductor microresonators, tightly confined and mutually interacting excitonic, optical, and mechanical modes can coexist. In this study, we investigate the parametric modulation of optical and excitonic resonances by the interaction with a mechanical mode in the strong exciton-photon coupling regime. We find that the exciton-phonon coupling in semiconductors leads to a significant enhancement of polariton-phonon interactions, making it possible to achieve near-unity single-polariton quantum cooperativity on current semiconductor resonator platforms. We also analyze how polariton nonlinearities affect dynamical backaction, altering the ability to cool or amplify the mechanical motion.
PHYSICAL REVIEW LETTERS
(2022)
Review
Engineering, Electrical & Electronic
Chao Zhao, Zhaonan Li, Tianyi Tang, Jiaqian Sun, Wenkang Zhan, Bo Xu, Huajun Sun, Hui Jiang, Kong Liu, Shengchun Qu, Zhijie Wang, Zhanguo Wang
Summary: This passage discusses the increasing demand for fabricating III-V semiconductor materials on unconventional substrates, highlighting the potential advantages of defect-free epitaxial growth through two-dimensional materials. The unique optical properties of the epitaxy correlating with their growth conditions are explored, along with their applications in optics and nanophotonics. Challenges and remaining obstacles in fully exploiting the potential for practical applications are also addressed.
PROGRESS IN QUANTUM ELECTRONICS
(2021)
Article
Energy & Fuels
S. Catalan-Gomez, E. Martinez Castellano, M. Schwarz, M. Montes Bajo, L. Dorado Vargas, A. Gonzalo, A. Redondo-Cubero, A. Gallego Carro, A. Hierro, J. M. Ulloa
Summary: This study investigates the use of core-shell gallium nanoparticles as functional light scatterers on solar cells. By optimizing the nanoparticle size, the short-circuit current of the solar cells is significantly improved. The underlying physical mechanism is studied through optical measurements and simulations, and a method to reduce the plasmonic effect of the nanoparticles is demonstrated.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2024)
Article
Chemistry, Physical
Trupti K. Gajaria, Narayan N. Som, Shweta D. Dabhi, Prafulla K. Jha
Summary: This article introduces the study of III-V materials, focusing on the electronic dispersion and band alignment of heterostructure nanowires. The results show that these materials have potential applications in photocatalysis and photovoltaics, and exhibit good catalytic activity in the hydrogen evolution reaction. Additionally, the nano-scale nature of these systems offers cost-effective production advantages.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Nanoscience & Nanotechnology
Masoomeh Ghasemi, Egor D. Leshchenko, Jonas Johansson
Summary: The ability to grow defect-free nanowires in lattice-mismatched material systems and to design their properties has made them ideal candidates for applications in various fields such as nanophotonics, nanoelectronics, and medicine. Scientists have shifted their focus to more complex ternary nanowires, with composition control being key for bandgap engineering. Various combinations of compounds and growth methods have been used in numerous investigations.
Article
Multidisciplinary Sciences
Christian Dam Vedel, Soren Smidstrup, Vihar P. Georgiev
Summary: In this study, polytypic defects in Indium Phosphide (InP) were investigated using density functional theory and non-equilibrium Greens functions. The study found that interfaces between the Zincblende crystal structure and the Wurtzite phase in InP exhibit anisotropic band structure transition and require a minimal width of 10 nm for crystal-phase quantum wells. Despite reducing conductivity across the defect-plane, a high degree of polytypic defects is still desirable due to a higher fraction of Wurtzite segments in a highly phase-intermixed system.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Mechanical
Anthony Moulins, Roberto Dugnani, Ricardo J. Zednik
Summary: Gallium arsenide (GaAs) is widely used in demanding semiconductor applications, but the fracture mechanisms are not well understood. A quantitative approach and detailed analysis help identify main fractographic features and estimate fracture constants. The fractographic features of GaAs correspond to the intrinsic symmetries of single-crystal GaAs.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Electrical & Electronic
Jong Yul Park, Byoung-Gue Min, Jong-Min Lee, Woojin Chang, Dong Min Kang, E-San Jang, Junhyung Kim, Jeong-Gil Kim
Summary: The authors propose criteria for recess etching in order to fabricate T-gates for InGaAs high electron mobility transistors (HEMTs). By patterning additional rectangular pads on the source and drain metals during e-beam lithography, they are able to measure the drain-to-source resistance (R-ds) and current (I-ds). The ratio (& UGamma;) of R-ds and I-ds before and after etching can be used as a criterion to determine the optimal time to stop the etching process. By applying the proposed criteria, the authors have successfully fabricated InGaAs metamorphic HEMTs with excellent performance.
ELECTRONICS LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Audrey Gilbert, Michel Ramonda, Laurent Cerutti, Charles Cornet, Gilles Patriarche, Eric Tournie, Jean-baptiste Rodriguez
Summary: This study focuses on the control of antiphase domain formation and evolution in III-V semiconductor epitaxial growth on a low-miscut Si (001) substrate. The crystal polarity of thin GaAs epilayers grown through molecular-beam epitaxy is determined by the Si surface topology, resulting in a quasi-periodic 1D pattern of antiphase domains in the GaAs layer. The study also demonstrates how this configuration breaks the symmetry between different III-V phases, leading to early burying of antiphase domains in GaAs epitaxially grown on a low-miscut Si substrate.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Physical
Chen Chen, Yanmeng Chu, Linjun Zhang, Haojun Lin, Wenzhang Fang, Zheyu Zhang, Chaofei Zha, Kejia Wang, Hui Yang, Xuezhe Yu, James A. Gott, Martin Aagesen, Zhiyuan Cheng, Suguo Huo, Huiyun Liu, Ana M. Sanchez, Yunyan Zhang
Summary: The successful growth of self-catalyzed nanowires depends on the effective V/III ratio at the initial growth stage, which should be high enough to allow nucleation to extend to the entire contact area between the droplet and substrate, elevating the droplet off of the substrate, but not too high to keep the droplet. Additionally, cluster growth between nanowires is also initiated from large droplets. This study provides insights into the cluster formation mechanism from the growth conditions and can guide high-yield nanowire growth.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Energy & Fuels
Yukun Sun, Shizhao Fan, Daehwan Jung, Ryan D. Hool, Brian Li, Michelle Vaisman, Minjoo Lee
Summary: This study shows that delta-doping significantly improves the performance of tunnel junctions used as interconnects in III-V multijunction solar cells. Delta-doping performs even better in tunnel junctions based on wider-bandgap materials with reduced optical absorption. Importantly, delta-doped tunnel junctions can withstand the thermal loads encountered during the growth of additional subcells.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Article
Nanoscience & Nanotechnology
Abhinandan Gangopadhyay, Chaomin Zhang, Aymeric Maros, Nikolai Faleev, Richard R. King, Christiana B. Honsberg, David J. Smith
Summary: The atomic-scale structure of extended defects in GaAs/GaAs1-xSbx/GaAs (001) heterostructures has been investigated using aberration-corrected scanning transmission electron microscopy. Two types of defects were identified: a dissociated screw dislocation or a partial dislocation dipole at the tensile-strained GaAs(cap)/GaAs0.34Sb0.66 interface, and a dissociated 90 degrees dislocation at the compressively-strained GaAs0.91Sb0.09/GaAs(substrate) interface. The intrinsic stacking faults associated with these defects were bounded by Shockley partial dislocations.
SCRIPTA MATERIALIA
(2023)
Review
Physics, Multidisciplinary
Kaustubh Vyas, Daniel H. G. Espinosa, Daniel Hutama, Shubhendra Kumar Jain, Rania Mahjoub, Ehsan Mobini, Kashif M. Awan, Jeff Lundeen, Ksenia Dolgaleva
Summary: Group III-V semiconductors based on elements from groups III and V of the periodic table can be precisely engineered to control their optical properties. The strong optical nonlinearities of III-V materials make them suitable for the development of photonic devices and integrated circuits, especially when monolithic integration is required. Exploring the nonlinear optical phenomena in III-V semiconductor materials facilitates the study of light-matter interactions.
ADVANCES IN PHYSICS-X
(2022)
Article
Computer Science, Interdisciplinary Applications
Ken-ichi Nomura, Patrick E. Small, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta
COMPUTER PHYSICS COMMUNICATIONS
(2015)
Article
Chemistry, Multidisciplinary
Ying Li, Rajiv K. Kalia, Masaaki Misawa, Aiichiro Nakano, Ken-ichi Nomura, Kohei Shimamura, Fuyuki Shimojo, Priya Vashishta
Article
Multidisciplinary Sciences
Ken-ichi Nomura, Rajiv K. Kalia, Ying Li, Aiichiro Nakano, Pankaj Rajak, Chunyang Sheng, Kohei Shimamura, Fuyuki Shimojo, Priya Vashishta
SCIENTIFIC REPORTS
(2016)
Article
Chemistry, Physical
Subodh C. Tiwari, Ken-ichi Nomura, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta
JOURNAL OF PHYSICAL CHEMISTRY C
(2017)
Article
Chemistry, Multidisciplinary
Yue Jiang, Sili Deng, Sungwook Hong, Jiheng Zhao, Sidi Huang, Chi-Chin Wu, Jennifer L. Gottfried, Ken-ichi Nomura, Ying Li, Subodh Tiwari, Rajiv K. Kalia, Priya Vashishta, Aiichiro Nakano, Xiaolin Zheng
Article
Nanoscience & Nanotechnology
Yue Jiang, Sili Deng, Sungwook Hong, Subodh Tiwari, Haihan Chen, Ken-ichi Nomura, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta, Michael R. Zachariah, Xiaolin Zheng
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Chemistry, Physical
Pankaj Rajak, Nitish Baradwaj, Ken-ichi Nomura, Aravind Krishnamoorthy, Jose P. Rino, Kohei Shimamura, Shogo Fukushima, Fuyuki Shimojo, Rajiv Kalia, Aiichiro Nakano, Priya Vashishta
Summary: The study focuses on the prototypical FSDP in GeSe2 glass and melt, using neural-network quantum molecular dynamics (NNQMD) for large-scale simulations with validated quantum mechanical accuracy, quantitatively comparing with neutron scattering data.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Physics, Multidisciplinary
Aravind Krishnamoorthy, Ken-ichi Nomura, Nitish Baradwaj, Kohei Shimamura, Pankaj Rajak, Ankit Mishra, Shogo Fukushima, Fuyuki Shimojo, Rajiv Kalia, Aiichiro Nakano, Priya Vashishta
Summary: The study utilized neural network quantum molecular dynamics to investigate the static dielectric constant and its temperature dependence for liquid water, building two deep neural networks for predicting and computing relevant data.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Physical
Pankaj Rajak, Beibei Wang, Ken-ichi Nomura, Ye Luo, Aiichiro Nakano, Rajiv Kalia, Priya Vashishta
Summary: The mechanical behavior of 2D materials like MoS2 can be manipulated through the ancient art of kirigami. By strategically inserting cuts, these materials can be stretched over 50%, but the design of kirigami structures with desired mechanical properties depends heavily on the pattern and location of cuts.
NPJ COMPUTATIONAL MATERIALS
(2021)
Article
Multidisciplinary Sciences
Thomas Linker, Ken-ichi Nomura, Anikeya Aditya, Shogo Fukshima, Rajiv K. Kalia, Aravind Krishnamoorthy, Aiichiro Nakano, Pankaj Rajak, Kohei Shimmura, Fuyuki Shimojo, Priya Vashishta
Summary: This study employs multiscale quantum simulations and machine learning to reveal the polarization control mechanism and topological dynamics change of ferroelectric materials under optical excitation. This research is of great significance for ferroelectric topotronics and optoelectronic applications.
Article
Chemistry, Physical
Aravind Krishnamoorthy, Ken-ichi Nomura, Nitish Baradwaj, Kohei Shimamura, Ruru Ma, Shogo Fukushima, Fuyuki Shimojo, Rajiv K. Kalia, Aiichiro Nakano, Priya Vashishta
Summary: The hydrogen bond structure and lifetimes in liquid ammonia and crystalline ammonia-I are investigated using quantum molecular dynamics simulations. Each nitrogen atom in liquid ammonia has only one hydrogen bond with a lifetime of approximately 0.1 ps, while hydrogen bonding is practically nonexistent in crystalline ammonia-I.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Ziyu Huang, Ken-ichi Nomura, Liam S. Morrissey, Joseph Wang
Summary: Reactive molecular dynamics simulations were used to study solar wind implantation on the lunar surface and its contribution to lunar water formation. The study found that while solar wind implantation can lead to the formation of hydroxyl groups and water molecules, its contribution to the observed lunar water content is not significant.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Chemistry, Physical
Thomas Linker, Ken-ichi Nomura, Shogo Fukushima, Rajiv K. Kalia, Aravind Krishnamoorthy, Aiichiro Nakano, Kohei Shimamura, Fuyuki Shimojo, Priya Vashishta
Summary: This study develops a machine-learning-based multiscale simulation framework to investigate the mechanical controllability of topological defects in ferroelectric materials. The results reveal that the symmetry of mechanical loading plays a crucial role in determining the polar topological switching pathways. These findings provide insights into the rational control of ferroelectric topologies, which can be useful for the design of ferroelectric topotronics.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Applied
Ankit Mishra, Pankaj Rajak, Ayu Irie, Shogo Fukushima, Rajiv K. Kalia, Aiichiro Nakano, Ken-ichi Nomura, Fuyuki Shimojo, Priya Vashishta
Summary: This article presents a framework for calculating the refractive index of polymers, which includes methods such as high-throughput computation, machine learning models, and frequency-dependent calculations. The framework has been tested on a computational database.
APPLIED PHYSICS LETTERS
(2023)
Article
Nanoscience & Nanotechnology
Thomas Linker, Shogo Fukushima, Rajiv K. Kalia, Aravind Krishnamoorthy, Aiichiro Nakano, Ken-ichi Nomura, Kohei Shimamura, Fuyuki Shimojo, Priya Vashishta
Summary: Recent discoveries of polar topological structures have opened up a new field of polar topotronics. However, the complex interplay between photoexcitation, electric field, and mechanical strain in controlling these structures remains unclear. In this study, a computational approach combining machine learning and first-principles simulations was developed to address this challenge. Using this approach, the dynamics of vortex states in PbTiO3 nanowires embedded in SrTiO3 were investigated, and a topological switching of these states was observed using electric field and shear strain. These findings suggest a new avenue for opto-electro-mechanical control of polar topotronic devices.
FRONTIERS IN NANOTECHNOLOGY
(2022)
