scholarly journals Black Silicon Layer Formation using Radio-Frequency Multi-Hollow Cathode Plasma System and Its Application in Solar Cell

2003 ◽  
Vol 4 (5) ◽  
pp. 10-14
Author(s):  
U. Gangopadhyay ◽  
Kyung-Hae Kim ◽  
S.K. Dhungel ◽  
D. Mangalaraj ◽  
J.H. Park ◽  
...  
Keyword(s):  
Solar Cell ◽  
Radio Frequency ◽  
Hollow Cathode ◽  
Silicon Layer ◽  
Black Silicon ◽  
Layer Formation ◽  
Cathode Plasma ◽  
Plasma System

Black silicon layer formation for application in solar cells

2006 ◽  
Vol 90 (18-19) ◽  
pp. 3085-3093 ◽  
Author(s):  
J.S. Yoo ◽  
I.O. Parm ◽  
U. Gangopadhyay ◽  
Kyunghae Kim ◽  
S.K. Dhungel ◽  
...  
Keyword(s):  
Solar Cells ◽  
Silicon Layer ◽  
Black Silicon ◽  
Layer Formation

scholarly journals Large-Area Crystalline Silicon Solar Cell Using Novel Antireflective Nanoabsorber Texturing Surface by Multihollow Cathode Plasma System and Spin-On Doping

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Utpal Gangopadhyay ◽  
Sukhendu Jana ◽  
Sayan Das
Keyword(s):  
Solar Cell ◽  
Hollow Cathode ◽  
Silicon Solar Cell ◽  
Crystalline Silicon ◽  
Low Cost ◽  
Black Silicon ◽  
Textured Surface ◽  
Crystalline Silicon Solar Cell ◽  
Rf Power ◽  
Large Area

We present 11.7% efficient p-type crystalline silicon solar cells with a nanoscale textured surface and no dielectric antireflection coating. We propose nanocrystalline-like textured surface consisting of nanocrystalline columnar structures of diameters from 50 to 100 nm and depth of about 500 nm formed by reactive-ion etching (RIE) in multihollow cathode system. This novel nano textured surface acts as an antireflective absorbing surface of c-Si abbreviate as ARNAB (antireflective nanoabsorber). Light shining on the surface of RIE-etched silicon bounces back and forth between the spikes in such a way that most of it never comes back. Radio frequency (RF) hollow cathode discharge allows an improvement of plasma density by an order of magnitude in comparison to standard RF parallel-plate discharge. Desirable black silicon layer has been achieved when RF power of about 20 Watt per one hollow cathode glow is applied for our multihollow cathode system. The RF power frequency was 13.56 MHz. The antireflection property of ARNAB textured surface has been investigated and compared with wet-textured and PECVD coated silicon samples. Solar cell using low-cost spin-on coating technique has been demonstrated in this paper. We have successfully achieved 11.7% efficient large area (98 cm2) ARNAB textured crystalline silicon solar cell using low-cost spin-on coating (SOD) doping.

70cm radio frequency hollow cathode plasma source for modification of foils and membranes

1997 ◽  
Vol 97 (1-3) ◽  
pp. 759-767 ◽  
Author(s):  
D. Korzec ◽  
M. Mildner ◽  
F. Hillemann ◽  
J. Engemann
Keyword(s):  
Radio Frequency ◽  
Hollow Cathode ◽  
Plasma Source ◽  
Cathode Plasma

scholarly journals An Investigation on a Crystalline-Silicon Solar Cell with Black Silicon Layer at the Rear

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhi-Quan Zhou ◽  
Fei Hu ◽  
Wen-Jie Zhou ◽  
Hong-Yan Chen ◽  
Lei Ma ◽  
...  
Keyword(s):  
Solar Cell ◽  
Silicon Solar Cell ◽  
Crystalline Silicon ◽  
Silicon Layer ◽  
Black Silicon ◽  
Crystalline Silicon Solar Cell

Optical Property of Pyramidal-Substrate with Nano Porous Layer

2013 ◽  
Vol 772 ◽  
pp. 331-336 ◽  
Author(s):  
Ye Hua Tang ◽  
Wen Jing Wang ◽  
Chun Lan Zhou ◽  
Su Zhou ◽  
Yan Zhao ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Silicon Surface ◽  
Silicon Solar Cell ◽  
Surface Recombination ◽  
Silicon Layer ◽  
Black Silicon ◽  
Important Approach ◽  
The Mean ◽  
Surface Reflectivity

Pyramidal surface is commonly used as an antireflection structure. The weighted reflectance averaged by the AM 1.5 G spectrum is about 14%. In the photovoltaic field, lowering the surface reflectivity is an important approach to improve the conversion efficiency. Black silicon surface with low reflectivity is benefit of solar cells. But conversion efficiency of black silicon solar cell is still low due to the severe surface recombination. In this paper, shallower black silicon layer was formed on the pyramidal surface. For the sample etched 1 min, the weighted reflectance is only 13.20%, and the pyramidal one is 14.10%. The layer would not deteriorate the material. Lifetime of the substrates after high temperature phosphorous diffusion is 13.35 μs higher than the pyramidal one. The mean sheet resistance is nearly the same between the pyramidal surface and the etched pyramidal surface.

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