Article
Nanoscience & Nanotechnology
Amir Muhammad Afzal, Muhammad Zahir Iqbal, Ghulam Dastgeer, Ghazanfar Nazir, Jonghwa Eom
Summary: A unique two-dimensional transition-metal dichalcogenide vdWH photodetector was reported, capable of high-performance photodetection in the visible and near-infrared range with high rectification ratio and responsivity. The intralayer and interlayer transition of excitations enables broadband photoresponse with fast response times.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Indranil Mal, D. P. Samajdar
Summary: We thoroughly investigated the potential applications of InPNBi in electronic and optical fields, considering strain relaxation and maintaining a specific ratio between N and Bi. We determined the electronic bandgap, equivalent wavelength, and spin-orbit coupling energy. We observed a wide range of electronic bandgaps and operating wavelengths, and found that increasing impurity concentration and applying electric field led to red shift and reduction in peak amplitude, which is beneficial for optical modulators, solar cells, and infrared detectors.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Mathematics
Wei Fan, Limei Dai, Bo Wang
Summary: This paper discusses the existence of positive radially symmetric entire solutions of the p-k-Hessian equation and system.
Article
Engineering, Electrical & Electronic
Neelesh Jain, Indranil Mal, D. P. Samajdar, Navjeet Bagga
Summary: This study investigates the electronic and optical aspects of InAsNBi material and finds that it has various potential optoelectronic applications, such as atmospheric LWIR communication, intermediate band solar cells, and night vision cameras, under specific strain conditions.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Nanoscience & Nanotechnology
Juanmei Duan, Phanish Chava, Mahdi Ghorbani-Asl, YangFan Lu, Denise Erb, Liang Hu, Ahmad Echresh, Lars Rebohle, Artur Erbe, Arkady Krasheninnikov, Manfred Helm, Yu-Jia Zeng, Shengqiang Zhou, Slawomir Prucnal
Summary: This study presents a high-performance and self-powered photodetector based on a MoSe2/FePS3 type-II n-p heterojunction. The photodetector operates at room temperature under zero bias and ambient conditions, exhibiting a wide working range and superior responsivity and quantum efficiency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Biochemical Research Methods
Antonio Blanca, Robert S. Harris, David Koslicki, Paul Medvedev
Summary: In this study, we investigate the impact of a simple mutation process on k-mers in sequences such as genomes or reads. We derive the expected values and variances of mutated k-mers, as well as islands and oceans, and provide hypothesis tests and confidence intervals based on the observed number of mutated k-mers or Jaccard similarity.
JOURNAL OF COMPUTATIONAL BIOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Jia Ma, Weiye Zhong, Hui Zhang, Chao Zhang, Zhiqiang Xu, Zhijie Sun, Dong Chen, Qinghui Liu, Zhiqiang Shen
Summary: A design of K-band highly directional coupler is proposed in this paper, and it is designed and measured using ANSYS HFSS software. The results show that the coupler has excellent performance and compact structure.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2022)
Article
Mathematics
Joel Brewster Lewis, Eric Marberg
Summary: An enriched analogue of the theory of set-valued P-partitions was introduced, leading to the construction of a K-theoretic version of Stembridge's Hopf algebra. It was shown that the symmetric part of this algebra is generated by specific shifted stable Grothendieck polynomials, and the skew analogues of these power series are also symmetric. The use of a K-theoretic Hopf algebra of labeled posets was a central tool in these constructions, which may have independent interest.
MATHEMATISCHE ZEITSCHRIFT
(2021)
Article
Chemistry, Physical
Junjiao Li, Yuzheng Lu, Dongchen Li, Fenghua Qi, Lei Yu, Chen Xia
Summary: The study explores the potential of p-n and n-n heterostructures for low-temperature electrolyte use in SOFCs. The results show that LiZnO-SnO2 and ZnO-SnO2 heterostructures exhibit high ionic conductivities and promising fuel cell performance. Energy band alignment mechanisms based on hetero-junctions are utilized to illustrate the ionic enhancement and electronic suppression processes of the materials, providing new insights into developing heterostructure electrolytes for low-temperature SOFCs.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Vanasundaram Natarajan, Muneer Ahmad, Jitendar Paul Sharma, Ayyappan Sathya, Praveen Kumar Sharma, Rengasamy Thangaraj
Summary: Artificial stacking of two-dimensional materials into van der Waals heterostructures has opened up new research possibilities. Nanohybrids based on transition metal dichalcogenides/reduced graphene oxide were fabricated and their structure-property relationship, electrical parameters, and spectroscopic properties were investigated. The formation of staggered band gap in n-SnS2/p-rGO vdWHs was demonstrated, providing a better understanding of their physical properties for future electronic device development.
APPLIED SURFACE SCIENCE
(2021)
Article
Mathematics, Applied
Zakaria El Allali, Lingju Kong, Mohamed Ousbika
Summary: In this paper, we investigate the existence of nontrivial solutions for an anisotropic discrete nonlinear problem with a p(k)-Laplacian operator. The proof of our main result is based on a local minimum theorem for differentiable functionals due to Ricceri.
QUALITATIVE THEORY OF DYNAMICAL SYSTEMS
(2022)
Article
Energy & Fuels
Xiaohui Li, Shenghan Wu, Yiming Chen, Jianyao Tang, Meiyue Liu, Zeng Chen, Putao Zhang, Shengjun Li
Summary: This study incorporates functional NHS into perovskite films to suppress nonradiative losses on the surface and grain boundary. NHS molecules form an effective barrier at the grain boundary and surface, preventing moisture permeation and reducing surface defects through interactions with the perovskite. The NHS-treated perovskite exhibits prolonged carrier lifetime and improved stability.
Article
Nanoscience & Nanotechnology
Mingjun Yang, Haibo Shu, Yanyan Li, Dan Cao, Xiaoshuang Chen
Summary: A nonvolatile doping strategy is reported for obtaining self-defined p-n junctions in 2D vdW heterostructures created by assembling monolayer transition metal dichalcogenides on polar semiconductors. The results show that the quantum-confined Stark effect plays an important role in spatial distribution, allowing manipulation of carrier types through polarization modulation. This work demonstrates the realization of nonvolatile p-n junctions with high carrier concentration in TMD/PS heterostructures and provides a band-engineering approach for versatile 2D electronics and optoelectronics development.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shiyu Luo, Miguel Angrick, Christopher Coogan, Daniel N. Candrea, Kimberley Wyse-Sookoo, Samyak Shah, Qinwan Rabbani, Griffin W. Milsap, Alexander R. Weiss, William S. Anderson, Donna C. Tippett, Nicholas J. Maragakis, Lora L. Clawson, Mariska J. Vansteensel, Brock A. Wester, Francesco V. Tenore, Hynek Hermansky, Matthew S. Fifer, Nick F. Ramsey, Nathan E. Crone
Summary: Brain-computer interfaces (BCIs) can accurately and reliably control assistive devices for patients with neurological disorders. This study demonstrates that a chronically implanted ECoG-based speech BCI can accurately detect and decode speech commands without the need for retraining or recalibration, supporting its feasibility for long-term use.
Article
Energy & Fuels
Marianna Raappana, Tomi Koikkalainen, Ville Polojarvi, Arto Aho, Timo Aho, Riku Isoaho, Antti Tukiainen, Mircea Guina
Summary: The etching characteristics of lattice-matched GaInP/GaAs/GaInNAsSb heterostructures by aqueous solutions of iodic acid and hydrochloric acid were studied for optimization of mesa fabrication process in III-V multijunction solar cells. Different etching conditions resulted in various mesa sidewall morphologies, with lower temperatures enhancing smooth morphology formation.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Chi Hwan Lee, Seung-Kyun Kang, Giovanni A. Salvatore, Yinji Ma, Bong Hoon Kim, Yu Jiang, Jae Soon Kim, Lingqing Yan, Dae Seung Wie, Anthony Banks, Soong Ju Oh, Xue Feng, Yonggang Huang, Gerhard Troester, John A. Rogers
ADVANCED FUNCTIONAL MATERIALS
(2015)
Article
Chemistry, Physical
Haoyue Wu, Yu Jiang, Jian Li, Xunpeng Ma, Jiakun Song, Hailong Yu, Dong Fu, Yun Xu, Haijun Zhu, Guofeng Song
JOURNAL OF ALLOYS AND COMPOUNDS
(2016)
Article
Physics, Applied
Jian Li, Xunpeng Ma, Xin Wei, Yu Jiang, Dong Fu, Haoyue Wu, Guofeng Song, Lianghui Chen
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2016)
Article
Physics, Applied
Yu Jiang, Xunpeng Ma, Yun Xu, Guofeng Song
JOURNAL OF APPLIED PHYSICS
(2014)
Article
Physics, Applied
Yu Jiang, Yun Xu, Haoyue Wu, Jian Li, Lin Bai, Huamin Chen, Jiushuang Zhang, Guofeng Song
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2017)