Hybrid Heterojunction and Photoelectrochemistry Solar Cell Based on Silicon Nanowires and Double-Walled Carbon Nanotubes

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• 作者：Qinke Shu ; Jinquan Wei ; Kunlin Wang ; Hongwei Zhu ; Zhen Li ; Yi Jia ; Xuchun Gui ; Ning Guo ; Xinming Li ; Chaoran Ma ; Dehai Wu
• 刊名：Nano Letters
• 出版年：2009
• 出版时间：December 9, 2009
• 年：2009
• 卷：9
• 期：12
• 页码：4338-4342
• 全文大小：274K
• 年卷期：v.9,no.12(December 9, 2009)
• ISSN：1530-6992

文摘

A hybrid solar cell model composed of a heterojunction cell and a photoelectrochemical (PEC) cell has been proposed and characterized. In the hybrid cell, a thin film of double-walled carbon nanotubes forms a heterojunction with the silicon nanowire (SiNW) array and also functions as the transparent counter electrode of the PEC cell. The cell performance can be readily tuned by controlling the SiNW density. Under AM 1.5G illumination, a power conversion efficiency of 1.29%, higher than those reported for SiNW array-based PEC cells, has been obtained.