Au/nc-Si:H core–shell nanostructures prepared by hot wire assisted plasma enhanced chemical vapor deposition technique

2013 ◽  
Vol 231 ◽  
pp. 394-398 ◽  
Author(s):  
Kee Wah Chan ◽  
Boon Tong Goh ◽  
Saadah Abdul Rahman ◽  
Zarina Aspanut
1998 ◽  
Vol 507 ◽  
Author(s):  
Qi Wang ◽  
Eugene Iwaniczko ◽  
A. H. Mahan ◽  
D. L. Williamson

ABSTRACTWe describe a series of microcrystalline (μc) silicon n-i-p solar cell devices fabricated entirely by the hot-wire chemical vapor deposition technique. These devices are deposited on flat stainless-steel at a substrate temperature below 250°C, and are evaluated using solar-cell performance and quantum-efficiency (QE) measurements. We explore the effect of crystallite size, as examined by X-ray diffraction, by varying the hydrogen-to-silane ratio from 5 to 40, while keeping the μc-n and the μc-p layers the same. We find a significant blue shift of the QE peak and an enhancement of red response compared with a standard a-Si:H solar cell. The blue shift increases with increasing hydrogen-to-silane ratio. We attribute this shift to the i-layer becoming more n-type with increasing hydrogen dilution. We also use a hydrogen gas purifier and find a large improvement in device performance.


2015 ◽  
Vol 575 ◽  
pp. 96-99
Author(s):  
Fumitaka Ohashi ◽  
Sunao Koiso ◽  
Shun Hibino ◽  
Tatsuro Sahashi ◽  
Takashi Itoh ◽  
...  

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 237
Author(s):  
M. Abul Hossion ◽  
B. M. Arora

Boron-doped polycrystalline silicon film was synthesized using hot wire chemical vapor deposition technique for possible application in photonics devices. To investigate the effect of substrate, we considered Si/SiO2, glass/ITO/TiO2, Al2O3, and nickel tungsten alloy strip for the growth of polycrystalline silicon films. Scanning electron microscopy, optical reflectance, optical transmittance, X-ray diffraction, and I-V measurements were used to characterize the silicon films. The resistivity of the film was 1.3 × 10−2 Ω-cm for the polycrystalline silicon film, which was suitable for using as a window layer in a solar cell. These films have potential uses in making photodiode and photosensing devices.


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