High-yield synthesis of single-crystal silicon nanoparticles as anode materials of lithium ion batteries via photosensitizer-assisted laser pyrolysis

2014 ◽  
Vol 2 (42) ◽  
pp. 18070-18075 ◽  
Author(s):  
Seongbeom Kim ◽  
Chihyun Hwang ◽  
Song Yi Park ◽  
Seo-Jin Ko ◽  
Hyungmin Park ◽  
...  
2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Feifei Shi ◽  
Zhichao Song ◽  
Philip N. Ross ◽  
Gabor A. Somorjai ◽  
Robert O. Ritchie ◽  
...  

2006 ◽  
Vol 89 (1) ◽  
pp. 013107 ◽  
Author(s):  
M. Cavarroc ◽  
M. Mikikian ◽  
G. Perrier ◽  
L. Boufendi

Surfaces ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 387-394 ◽  
Author(s):  
Elizaveta A. Konstantinova ◽  
Alexander S. Vorontsov ◽  
Pavel A. Forsh

Hybrid samples consisting of polymer poly-3(hexylthiophene) (P3HT) and silicon nanoparticles were prepared. It was found that the obtained samples were polymer matrixes with conglomerates of silicon nanoparticles of different sizes (10–104 nm). It was found that, under illumination, the process of nonequilibrium charge carrier separation between the silicon nanoparticles and P3HT with subsequent localization of the hole in the polymer can be successfully detected using electron paramagnetic resonance (EPR) spectroscopy. It was established that the main type of paramagnetic centers in P3HT/silicon nanoparticles are positive polarons in P3HT. For comparison, samples consisting only of polymer and silicon nanoparticles were also investigated by the EPR technique. The polarons in the P3HT and Pb centers in the silicon nanoparticles were observed. The possibility of the conversion of solar energy into electric energy is shown using structures consisting of P3HT polymer and silicon nanoparticles prepared by different methods, including the electrochemical etching of a silicon single crystal in hydrofluoric acid solution and the laser ablation of single-crystal silicon in organic solvents. The results can be useful for solar cell development.


2014 ◽  
Vol 247 ◽  
pp. 991-998 ◽  
Author(s):  
Yun-Sheng Ye ◽  
Xiao-Lin Xie ◽  
John Rick ◽  
Feng-Chih Chang ◽  
Bing-Joe Hwang

1987 ◽  
Vol 65 (8) ◽  
pp. 892-896 ◽  
Author(s):  
R. E. Thomas ◽  
C. E. Norman ◽  
S. Varma ◽  
G. Schwartz ◽  
E. M. Absi

A low-cost, high-yield technology for producing single-crystal silicon solar cells at high volumes, and suitable for export to developing countries, is described. The process begins with 100 mm diameter as-sawn single-crystal p-type wafers with one primary flat. Processing steps include etching and surface texturization, gaseous-source diffusion, plasma etching, and contacting via screen printing. The necessary adaptations of such standard processes as diffusion and plasma etching to solar-cell production are detailed. New process developments include a high-throughput surface-texturization technique, and automatic printing and firing of cell contacts.The technology, coupled with automated equipment developed specifically for the purpose, results in solar cells with an average efficiency greater than 12%, a yield exceeding 95%, a tight statistical spread on parameters, and a wide tolerance to starting substrates (including the first 100 mm diameter wafers made in Canada). It is shown that with minor modifications, the present single shift 500 kWp (kilowatt peak) per year capacity technology can be readily expanded to 1 MWp per year, adapted to square and polycrystalline substrates, and efficiencies increased above 13%.


2014 ◽  
Vol 132 ◽  
pp. 404-409 ◽  
Author(s):  
Yanguo Liu ◽  
Yanyan Zhao ◽  
Yanlong Yu ◽  
Mashkoor Ahmad ◽  
Hongyu Sun

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