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Achieving High Efficiency Silicon-Carbon Nanotube Heterojunction Solar Cells by Acid Doping.
MedLine Citation:
PMID:  21452837     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Various approaches to improve the efficiency of solar cells have followed the integration of nanomaterials into Si-based photovoltaic devices. Here, we achieve 13.8% efficiency solar cells by combining carbon nanotubes and Si and doping with dilute HNO(3). Acid infiltration of nanotube networks significantly boost the cell efficiency by reducing the internal resistance that improves fill factor and by forming photoelectrochemical units that enhance charge separation and transport. Compared to conventional Si cells, the fabrication process is greatly simplified, simply involving the transfer of a porous semiconductor-rich nanotube film onto an n-type crystalline Si wafer followed by acid infiltration.
Authors:
Yi Jia; Anyuan Cao; Xi Bai; Zhen Li; Luhui Zhang; Ning Guo; Jinquan Wei; Kunlin Wang; Hongwei Zhu; Dehai Wu; P M Ajayan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-31
Journal Detail:
Title:  Nano letters     Volume:  -     ISSN:  1530-6992     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-4-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Key Laboratory for Advanced Materials Processing Technology and Department of Mechanical Engineering, Tsinghua University , Beijing 100084, People's Republic of China.
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