U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "silicon" Remove constraint Subject: "silicon"
Start Over

Search

18,408  Search Results

« Previous | 1 - 20 of 18,408 |
Number of results to display per page

Search Results

1. Anomalously High Ionic Conductivity of Li₂SiS₃-Type Conductors

Author:
Wenze Huang; Naoki Matsui; Satoshi Hori; Kota Suzuki; Masaaki Hirayama; Masao Yonemura; Takashi Saito; Takashi Kamiyama; Yuki Sasaki; Yongsub Yoon; Saheum Kim; Ryoji Kanno
Source:
Journal of the American Chemical Society 2022 v.144 no.11 pp. 4989-4994
ISSN:
1520-5126
Subject:
silicon,   etc   ; ambient temperature; lithium;     Show all 3 Subjects
Abstract:
... Solid-state electrolytes that exhibit high ionic conductivities at room temperature are key materials for obtaining the next generation of safer, higher-specific-energy solid-state batteries. However, the number of currently available crystal structures for use as superionic conductors remains limited. Here, we report a lithium superionic conductor, Li₂SiS₃, with tetragonal crystal symmetry, which ...
DOI:
10.1021/jacs.1c13178

2. All-vacuum deposited perovskite solar cells with glycine modified NiOₓ hole-transport layers

Author:
Cheng Fang; Qianqian Zhao; Fuping Zhao; Fuzhi Huang; Yong Peng; Zhiliang Ku; Yi-Bing Cheng; Zhengyi Fu
Source:
RSC advances 2022 v.12 no.18 pp. 10863-10869
ISSN:
2046-2069
Subject:
silicon,   etc   ; crystal structure; hysteresis; transmittance;     Show all 4 Subjects
Abstract:
... Organic–inorganic hybrid perovskite solar cells (PSCs) have attracted enormous research attention due to their high efficiency and low cost. However, most of the PSCs with high efficiencies still need expensive organic materials as their hole-transport layer (HTL). Obviously, the highly expensive materials go against the low-cost concept of advanced PSCs. In this regard, inorganic NiOₓ was conside ...
DOI:
10.1039/d2ra01360f

3. Anion Modification and Theoretical Understanding for Improving Annealing-Free Electrochemistry Deposition of Perovskites under an Ambient Atmosphere

Author:
Yangrunqian Wang; Chao Gao; Yuanyuan Chen; Xin Wang; Hong Liu; Wenzhong Shen
Source:
Journal of physical chemistry 2022 v.126 no.10 pp. 4785-4791
ISSN:
1932-7455
Subject:
silicon,   etc   ; crystallization; electrochemistry; simulation models;     Show all 4 Subjects
Abstract:
... Organometallic halide perovskites have drawn tremendous attention for their remarkable photovoltaic properties. We report anion modification for improving annealing-free electrochemical deposition of perovskites under an ambient atmosphere and extending the applications. Relevant theoretical simulation based on the Butler–Volmer functions reveals the mechanism behind: introduced anions raise the e ...
DOI:
10.1021/acs.jpcc.1c10232

4. Irradiation resistance of preceramic paper‐derived SiCf/SiC laminated composites

Author:
Ke Li; Egor Kashkarov; Hailiang Ma; Ping Fan; Qiaoli Zhang; Peng Zhang; Xingzhong Cao; Jilong Zhang; Zhaohui Wu; Andrey Lider; Nahum Travitzky; Daqing Yuan
Source:
Journal of materials science 2022 v.57 no.22 pp. 10153-10166
ISSN:
0022-2461
Subject:
silicon,   etc   ; crystallization; irradiation; radiation resistance;     Show all 4 Subjects
Abstract:
... Influence of the ion irradiation at elevated temperatures on the novel preceramic paper-derived SiCf/SiC laminated composites fabricated by spark plasma sintering was investigated. The composites were subjected to high-dose simultaneous irradiation of silicon (Si) ions at 400 °C. Irradiation induces amorphization of the damaged area up to 30 dpa, and then recrystallization of amorphous regions wit ...
DOI:
10.1007/s10853-022-07294-6

5. Mediating the alloying depth to tune silicon's morphology and lithium-storage performance

Author:
Qiang Ma; Yan Zhao; Yanyang Guo; Zhuqing Zhao; Hongwei Xie; Pengfei Xing; Dihua Wang; Huayi Yin
Source:
Journal of materials chemistry A 2022 v.10 no.18 pp. 10004-10013
ISSN:
2050-7496
Subject:
silicon,   etc   ; alloys; anodes; electrochemistry; nanopores;     Show all 5 Subjects
Abstract:
... Regulating the morphology and structure of Si by alloying/dealloying has been proven as an effective way to leverage the Li-storage performance of Si the anode in Li-ion batteries (LIBs). However, the alloying depth is difficult to control and thus the alloy depth-structure relationship is still unclear. Here, we employ the molten-salt electrochemical alloying/dealloying approach to regulate the L ...
DOI:
10.1039/d2ta01342h

6. Protein biosensor based on Schottky barrier nanowire field effect transistor

Author:
Tatyana E. Smolyarova; Lev V. Shanidze; Anna V. Lukyanenko; Filipp A. Baron; Vasilisa V. Krasitskaya; Anna S. Kichkailo; Anton S. Tarasov; Nikita Volkov
Source:
Talanta 2022 v.239 pp. 123092
ISSN:
0039-9140
Subject:
silicon,   etc   ; biosensors; energy; nanowires; transistors;     Show all 5 Subjects
Abstract:
... A top-down nanofabrication approach involving molecular beam epitaxy and electron beam lithography was used to obtain silicon nanowire-based back gate field-effect transistors with Schottky contacts on silicon-on-insulator (SOI) wafers. The resulting device is applied in biomolecular detection based on the changes in the drain-source current (IDS). In this context, we have explained the physical m ...
DOI:
10.1016/j.talanta.2021.123092

7. Significant reduction in lattice thermal conductivity in a p-type filled skutterudite due to strong electron–phonon interactions

Author:
Zhenyu Zhu; Jinyang Xi; Jiong Yang
Source:
Journal of materials chemistry A 2022 v.10 no.25 pp. 13484-13491
ISSN:
2050-7496
Subject:
silicon,   etc   ; people; temperature; thermal conductivity;     Show all 4 Subjects
Abstract:
... Electron–phonon interaction (EPI) has been widely suited in electrical transport properties. Nevertheless, its critical impact on the lattice thermal transport has been revealed in the last few years. Recently, people found that EPI can remarkably reduce the lattice thermal conductivity under a high carrier concentration and low temperature such as in silicon and two-dimensional materials; however ...
DOI:
10.1039/d2ta02687b

8. Single-step functionalization of silicon nanoparticles providing efficient DNA binding

Author:
Paul Cannon; Brian Freeland; Margaux Jaquiery; Enda McGlynn; Jennifer Gaughran
Source:
Colloids and surfaces 2022 v.648 pp. 129217
ISSN:
0927-7757
Subject:
silicon,   etc   ; DNA; gold; liquids; silver;     Show all 5 Subjects
Abstract:
... Functionalized nanoparticles (NPs) offer diverse biomedical applications, but their synthesis is complex, costly, and labour-intensive, particularly when providing for additional functionalization requirements which are a key feature of biomedical applications. Pulsed laser ablation in liquids (PLAL) has previously allowed for the synthesis of metal and metal oxide nanoparticles using metal target ...
DOI:
10.1016/j.colsurfa.2022.129217

9. Silicon carbide (SiC) derived from agricultural waste potentially competitive with silicon anodes

Author:
Mengjie Yu; Eleni Temeche; Sylvio Indris; Wei Lai; Richard M. Laine
Source:
Green chemistry 2022 v.24 no.10 pp. 4061-4070
ISSN:
1463-9270
Subject:
silicon; silicon carbide,   etc   ; agricultural wastes; batteries; carbon; energy; green chemistry; phase transition; rice hulls; silica; surface area;     Show all 11 Subjects
Abstract:
... Biomass-derived materials offer low carbon approaches to energy storage. High surface area SiC w/wo 13 wt% hard carbon (SiC/HC, SiC/O), derived from carbothermal reduction of silica depleted rice hull ash (SDRHA), can function as Li⁺ battery anodes. Galvanostatic cycling of SiC/HC and SiC/O shows capacity increases eventually to >950 mA h g⁻¹ (Li₁.₂–₁.₄SiC) and >740 mA h g⁻¹ (Li₁.₁SiC), respective ...
DOI:
10.1039/d2gc00645f

10. Disproportionated SiOx/C composite anode materials for lithium-ion batteries

Author:
Hui Zhou; Jingzhuang Liu; Lingshan Guo; Junying Zhang; Shuai Feng; Xiaoming Zhang
Source:
Colloids and surfaces 2022 v.648 pp. 129386
ISSN:
0927-7757
Subject:
silicon,   etc   ; anodes; electrochemistry; electrolytes; graphene; silica;     Show all 6 Subjects
Abstract:
... A facile method to synthesize silicon oxide/graphite (SiOₓ/C) composite anode materials for high-capacity Li-ion batteries (LIBs) is proposed. In order to solve the problems of volume expansion and poor conductivity of silicon-based materials, ball milled disproportionate silicon oxide/graphite (m-d-SiOₓ/C) composite was successfully synthesized by combining high-temperature annealing and high-ene ...
DOI:
10.1016/j.colsurfa.2022.129386

11. Efficient recycling of silicon cutting waste by Al[sbnd]Si alloying with the assistance of cryolite

Author:
Donghui Wei; Jian Kong; Jingyi Lyu; Yanxin Zhuang; Pengfei Xing
Source:
Science of the total environment 2022 v.816 pp. 151580
ISSN:
0048-9697
Subject:
silicon,   etc   ; alloys; cryolite; environment; temperature; wastes;     Show all 6 Subjects
Abstract:
... Silicon cutting waste (SCW) generated during Si wafers producing process can be recycled by AlSi alloying process. However, the presence of O in SCW has a detrimental impact on recycling process. In this study, cryolite was introduced to eliminate the hindrance of O. The influences of smelting temperature and the amount of cryolite additive on the yield of the blocky AlSi alloys and the Si recover ...
DOI:
10.1016/j.scitotenv.2021.151580

12. High power 2.5D integrated thermoelectric generators combined with microchannels technology

Author:
Guillaume Savelli; Jean-Philippe Colonna; Perceval Coudrain; Pascal Faucherand; Agnès Royer; Louis-Michel Collin; Amrid Amnache; Luc Fréchette
Source:
Energy 2022 v.252 pp. 123984
ISSN:
0360-5442
Subject:
silicon,   etc   ; ambient temperature; batteries; energy; heat;     Show all 5 Subjects
Abstract:
... We have developed high power integrated thermoelectric generators (μTEGs). These μTEGs are CMOS compatible, i.e. based on polycristalline SiGe materials. These μTEGs have been processed directly on a silicon interposer. Even if poly-SiGe exhibits low thermoelectric performances at room temperature, the specific design and proposed architecture enable μTEGs to deliver up to 680 μW for a temperature ...
DOI:
10.1016/j.energy.2022.123984

13. Hundred-gram scale fabrication of few-layered silicene by a continuous vapor-dealloying strategy for high-performance lithium storage

Author:
Xiaowei Wang; Jianmin Feng; Feng Hou; Lei Dong; Conglai Long; Dejun Li; Ji Liang
Source:
Chemical communications 2022 v.58 no.38 pp. 5717-5720
ISSN:
1364-548X
Subject:
silicon,   etc   ; alloys; carbon nanotubes; lithium; vapors;     Show all 5 Subjects
Abstract:
... A continuous vapor de-alloying strategy for a hundred-gram scale fabrication of silicene is developed by etching CaSi₂ using waste polyvinyl chloride (PVC). The as-obtained few-layered silicene can be readily assembled with carbon nanotubes into flexible electrodes for lithium storage with excellent performance, which stably deliver a high capacity and stability. This strategy can be extended to o ...
DOI:
10.1039/d2cc01116f

14. Lithium/Boron Co-doped Micrometer SiOₓ as Promising Anode Materials for High-Energy-Density Li-Ion Batteries

Author:
Xiao-Dong Li; Yu-Ming Zhao; Yi-Fan Tian; Zhuo-Ya Lu; Min Fan; Xu-Sheng Zhang; He Tian; Quan Xu; Hong-Liang Li; Yu-Guo Guo
Source:
ACS applied materials & interfaces 2022 v.14 no.24 pp. 27854-27860
ISSN:
1944-8252
Subject:
silicon,   etc   ; anodes; boron; graphene; grinding; lithium;     Show all 6 Subjects
Abstract:
... The carbon-coated silicon monoxide (SiOₓ@C) has been considered as one of the most promising high-capacity anodes for the next-generation high-energy-density lithium-ion batteries (LIBs). However, the relatively low initial Coulombic efficiency (ICE) and the still existing huge volume expansion during repeated lithiation/delithiation cycling remain the greatest challenges to its practical applicat ...
DOI:
10.1021/acsami.2c04983

15. Operando transmission electron microscopy of battery cycling: thickness dependent breaking of TiO₂ coating on Si/SiO₂ nanoparticles

Author:
Shibabrata Basak; Amir H. Tavabi; Krzysztof Dzieciol; Vadim Migunov; Violetta Arszelewska; Hermann Tempel; Hans Kungl; Erik M. Kelder; Marnix Wagemaker; Chandramohan George; Joachim Mayer; Rafal E. Dunin-Borkowski; Rüdiger-A. Eichel
Source:
Chemical communications 2022 v.58 no.19 pp. 3130-3133
ISSN:
1364-548X
Subject:
silicon,   etc   ; anodes; batteries; transmission electron microscopy;     Show all 4 Subjects
Abstract:
... Conformal coating of silicon (Si) anode particles is a common strategy for improving their mechanical integrity, to mitigate battery capacity fading due to particle volume expansion, which can result in particle crumbling due to lithiation induced strain and excessive solid–electrolyte interface formation. Here, we use operando transmission electron microscopy in an open cell to show that TiO₂ coa ...
DOI:
10.1039/d1cc07172f

16. Optical, structural and morphological studies of nanostructures fabricated on silicon surface by femtosecond laser irradiation

Author:
R. Kuladeep; L. Jyothi; Chakradhar Sahoo; D. Narayana Rao; V. Saikiran
Source:
Journal of materials science 2022 v.57 no.3 pp. 1863-1880
ISSN:
0022-2461
Subject:
silicon,   etc   ; irradiation; oxidation; oxygen; periodicity; photoluminescence;     Show all 6 Subjects
Abstract:
... We report here a detailed analysis of the ultrashort laser pulse irradiation effects on a single crystalline silicon surface. A systematic study has been performed to understand the surface morphological changes under irradiation with ultrashort laser pulses by changing different input laser parameters such as laser fluence, laser pulse number, and incident laser polarization. Field emission scann ...
DOI:
10.1007/s10853-021-06712-5

17. Recycling of silicon scraps by electron beam melting coupled with directional solidification and its mechanism of impurity removal

Author:
Pengting Li; Lian Dong; Zhiqiang Hu; Shiqiang Ren; Yi Tan; Dachuan Jiang; Xiaogang You
Source:
Journal of cleaner production 2022 v.355 pp. 131716
ISSN:
0959-6526
Subject:
silicon,   etc   ; byproducts; condensates; convection; solidification; temperature;     Show all 6 Subjects
Abstract:
... Silicon scraps, as the by-product of solar cells, have received more and more attention for its recycling with the continuing development of the cleaner production. However, hard particles and metal impurities in the silicon scraps are always difficult to remove deeply in industry. In this paper, electron beam melting coupled with directional solidification was used to purify silicon scraps and a ...
DOI:
10.1016/j.jclepro.2022.131716

18. A chemical switch enabled autonomous two-stage crosslinking polymeric binder for high performance silicon anodes

Author:
Zhangxing Shi; Qian Liu; Zhenzhen Yang; Lily A. Robertson; Sambasiva R. Bheemireddy; Yuyue Zhao; Zhengcheng Zhang; Lu Zhang
Source:
Journal of materials chemistry A 2022 v.10 no.3 pp. 1380-1389
ISSN:
2050-7496
Subject:
silicon,   etc   ; ammonia; anodes; crosslinking; polyethyleneimine; slurries; temperature;     Show all 7 Subjects
Abstract:
... Silicon (Si) is a promising high-capacity anode material for high-energy-density lithium-ion batteries. However, the drastic volumetric changes of Si upon lithiation/delithiation hinder the practical use of Si anodes. Although adhesive polymeric binders, such as poly(acrylic acid) (PAA), mitigate this issue, the cycling performance of the fabricated Si anodes is still far from meeting the criteria ...
DOI:
10.1039/d1ta07112b

19. Boron, silicon, nitrogen and sulfur-based contemporary precursors for the generation of alkyl radicals by single electron transfer and their synthetic utilization

Author:
Vincent Corcé; Cyril Ollivier; Louis Fensterbank
Source:
Chemical Society reviews 2022 v.51 no.4 pp. 1470-1510
ISSN:
1460-4744
Subject:
silicon,   etc   ; boron; electrochemistry; electron transfer; nitrogen; sulfur;     Show all 6 Subjects
Abstract:
... Recent developments in the use of boron, silicon, nitrogen and sulfur derivatives in single-electron transfer reactions for the generation of alkyl radicals are described. Photoredox catalyzed, electrochemistry promoted or thermally-induced oxidative and reductive processes are discussed highlighting their synthetic scope and discussing their mechanistic pathways. ...
DOI:
10.1039/d1cs01084k

20. Linear and nonlinear optical properties of transfer ribonucleic acid (tRNA) thin solid films

Author:
Marjan Ghasemi; Hayoung Jeong; Donggyu Kim; Byungjoo Kim; Joon Ik Jang; Kyunghwan Oh
Source:
RSC advances 2022 v.12 no.14 pp. 8661-8667
ISSN:
2046-2069
Subject:
silicon,   etc   ; absorption; aqueous solutions; quartz; refractive index;     Show all 5 Subjects
Abstract:
... We successfully obtained transfer ribonucleic acid (tRNA) thin solid films (TSFs) using an aqueous solution precursor in an optimized deposition process. By varying the concentration of RNA and deposition process parameters, uniform solid layers of solid RNA with a thickness of 30 to 46 nm were fabricated consistently. Linear absorptions of RNA TSFs on quartz substrates were experimentally investi ...
DOI:
10.1039/d1ra09412b