scholarly journals Influence of Laser Light on the Formation and Properties of Silicon Nanocrystals in a-Si/Sn Layered Structures

2019 ◽  
Vol 64 (6) ◽  
pp. 522
Author(s):  
V. B. Neimash ◽  
A. S. Nikolenko ◽  
V. V. Strelchuk ◽  
P. Ye. Shepelyavyi ◽  
P. M. Litvinchuk ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Intensity ◽  
Amorphous Silicon ◽  
Silicon Nanocrystals ◽  
New Technologies ◽  
Laser Light ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Nano Silicon ◽  
Induced Crystallization

The influence of the laser light intensity and the temperature on the tin-induced crystallization of amorphous silicon has been studied using the Raman screening and optical microscopy methods. The existence of non-thermal mechanisms giving rise to the influence of laser light on the formation of silicon nanocrystals and their Raman spectra is demonstrated experimentally. The photoionization of silicon and the electron-phonon interaction are considered as possible origins of the detected effects. The prospects of their application in new technologies for producing nano-silicon films used in solar cells are discussed.

Thin-film polycrystalline-silicon solar cells on high-temperature glass based on aluminum-induced crystallization of amorphous silicon

2006 ◽  
Vol 910 ◽  
Author(s):  
Dries Van Gestel ◽  
Ivan Gordon ◽  
Lode Carnel ◽  
Linda R. Pinckney ◽  
Alexandre Mayolet ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Temperature ◽  
Amorphous Silicon ◽  
Polycrystalline Silicon ◽  
Open Circuit ◽  
Si Solar Cells ◽  
Induced Crystallization ◽  
Seed Layers ◽  
Aluminum Induced Crystallization

AbstractEfficient thin-film polycrystalline-silicon (pc-Si) solar cells on foreign substrates could lower the price of photovoltaic electricity. Aluminum-induced crystallization (AIC) of amorphous silicon followed by epitaxial thickening at high temperatures seems a good way to obtain efficient pc-Si solar cells. Due to its transparency and low cost, glass is well suited as substrate for pc-Si cells. However, most glass substrates do not withstand temperatures around 1000°C that are needed for high-temperature epitaxial growth. In this paper we investigate the use of experimental transparent glass-ceramics with high strain-point temperatures as substrates for pc-Si solar cells. AIC seed layers made on these substrates showed in-plane grain sizes up to 16 μm. Columnar growth was observed on these seed layers during high-temperature epitaxy. First pc-Si solar cells made on glass-ceramic substrates in substrate configuration showed efficiencies up to 4.5%, fill factors up to 75% and open-circuit voltage (Voc) values up to 536 mV. This is the highest Voc reported for pc-Si solar cells on glass and the best cell efficiency reported for cells made by AIC on glass.

Quantum Confined Electron–Phonon Interaction in Silicon Nanocrystals

Nano Letters ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 1511-1516 ◽  
Author(s):  
D. M. Sagar ◽  
Joanna M. Atkin ◽  
Peter K. B. Palomaki ◽  
Nathan R. Neale ◽  
Jeffrey L. Blackburn ◽  
...  
Keyword(s):  
Silicon Nanocrystals ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Quantum Confined
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