Graphene/silicon nanowire Schottky junction for enhanced light harvesting

Guifeng Fan; Hongwei Zhu; Kunlin Wang; Jinquan Wei; Xinming Li; Qinke Shu; Ning Guo; Dehai Wu

doi:10.1021/am1010354

Graphene/silicon nanowire Schottky junction for enhanced light harvesting

ACS Appl Mater Interfaces. 2011 Mar;3(3):721-5. doi: 10.1021/am1010354. Epub 2011 Feb 16.

Authors

Guifeng Fan¹, Hongwei Zhu, Kunlin Wang, Jinquan Wei, Xinming Li, Qinke Shu, Ning Guo, Dehai Wu

Affiliation

¹ Key Laboratory for Advanced Manufacturing by Material Processing Technology, Ministry of Education and Department of Mechanical Engineering, Tsinghua University, Beijing 100084, P. R. China.

PMID: 21323376
DOI: 10.1021/am1010354

Abstract

Schottky junction solar cells are assembled by directly coating graphene films on n-type silicon nanowire (SiNW) arrays. The graphene/SiNW junction shows enhanced light trapping and faster carrier transport compared to the graphene/planar Si structure. With chemical doping, the SiNW-based solar cells showed energy conversion efficiencies of up to 2.86% at AM1.5 condition, opening a possibility of using graphene/semiconductor nanostructures in photovoltaic application.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electric Power Supplies*
Equipment Design
Equipment Failure Analysis
Graphite / chemistry*
Light
Nanotubes / chemistry*
Nanotubes / ultrastructure
Particle Size
Semiconductors*
Silicon / chemistry*
Solar Energy*

Substances

Graphite
Silicon