scholarly journals Nanocrystalline silicon thin film growth and application for silicon heterojunction solar cells: a short review

2021 ◽  
Author(s):  
Mansi Sharma ◽  
Jagannath Panigrahi ◽  
Vamsi K. Komarala

Doped nanocrystalline silicon thin films, in which silicon nanocrystallites are embedded in an amorphous silicon matrix, are emerging as carrier-selective contacts for next-generation silicon heterojunction solar cells.

2015 ◽  
Vol 1770 ◽  
pp. 7-12 ◽  
Author(s):  
Henriette A. Gatz ◽  
Yinghuan Kuang ◽  
Marcel A. Verheijen ◽  
Jatin K. Rath ◽  
Wilhelmus M.M. (Erwin) Kessels ◽  
...  

ABSTRACTSilicon heterojunction solar cells (SHJ) with thin intrinsic layers are well known for their high efficiencies. A promising way to further enhance their excellent characteristics is to enable more light to enter the crystalline silicon (c-Si) absorber of the cell while maintaining a simple cell configuration. Our approach is to replace the amorphous silicon (a-Si:H) emitter layer with a more transparent nanocrystalline silicon oxide (nc-SiOx:H) layer. In this work, we focus on optimizing the p-type nc-SiOx:H material properties, grown by radio frequency plasma enhanced chemical vapor deposition (rf PECVD), on an amorphous silicon layer.20 nm thick nanocrystalline layers were successfully grown on a 5 nm a-Si:H layer. The effect of different ratios of trimethylboron to silane gas flow rates on the material properties were investigated, yielding an optimized material with a conductivity in the lateral direction of 7.9×10-4 S/cm combined with a band gap of E04 = 2.33 eV. Despite its larger thickness as compared to a conventional window a-Si:H p-layer, the novel layer stack of a-Si:H(i)/nc-SiOx:H(p) shows significantly enhanced transmission compared to the stack with a conventional a-Si:H(p) emitter. Altogether, the chosen material exhibits promising characteristics for implementation in SHJ solar cells.


2016 ◽  
Vol 6 (5) ◽  
pp. 1132-1140 ◽  
Author(s):  
Johannes P. Seif ◽  
Antoine Descoeudres ◽  
Gizem Nogay ◽  
Simon Hanni ◽  
Silvia Martin de Nicolas ◽  
...  

2015 ◽  
Vol 324 ◽  
pp. 152-159 ◽  
Author(s):  
Zhi Qiao ◽  
Xinjian Xie ◽  
Qiuyan Hao ◽  
Di Wen ◽  
Junming Xue ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document