Improved Efficiency of Graphene/Si Heterojunction Solar Cells by Optimizing Hydrocarbon Feed Rate-Reference-Cited by-同舟云学术

Improved Efficiency of Graphene/Si Heterojunction Solar Cells by Optimizing Hydrocarbon Feed Rate

Published:2014 Issue: Volume:2014 Page:1-7
ISSN:1687-4110
Container-title:Journal of Nanomaterials
language:en
Short-container-title:Journal of Nanomaterials

Author:

Zhang Zexia¹,Cui Tongxiang¹,Lv Ruitao¹^ORCID,Zhu Hongwei¹²,Wang Kunlin¹,Wu Dehai¹,Kang Feiyu¹³

Affiliation:

1. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

2. Center for Nano and Micro Mechanics, Tsinghua University, Beijing 100084, China

3. Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China

Abstract

Four different graphene films were synthesized via chemical vapor deposition by using acetonitrile with feed rates of 0.01, 0.02, 0.04, and 0.06 mL/min. Heterojunction solar cells were assembled by transferring as-synthesized graphene films onton-Si. Solar cells based on graphene samples produced at 0.01, 0.02, 0.04, and 0.06 mL/min demonstrate power conversion efficiencies of 2.26%, 2.10%, 1.02%, and 0.94%, respectively. When HNO3was used to dope the graphene films, the corresponding photovoltaic efficiencies were increased to 4.98%, 4.19%, 2.04%, and 1.74%, respectively. Mechanism for the improved efficiency of graphene/Si heterojunction solar cells was also investigated.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

General Materials Science

Link

http://downloads.hindawi.com/journals/jnm/2014/359305.pdf

Reference33 articles.

1. The rise of graphene

2. Removal of methylene blue from aqueous solution with self-assembled cylindrical graphene–carbon nanotube hybrid

3. Interface Engineering of Layer-by-Layer Stacked Graphene Anodes for High-Performance Organic Solar Cells