Hybrid heterojunction and photoelectrochemistry solar cell based on silicon nanowires and double-walled carbon nanotubes.
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.
Shu
Qinke
Q
Department of Mechanical Engineering, Key Laboratory for Advanced Materials Processing Technology, Tsinghua University, Beijing 100084, People's Republic of China.
Wei
Jinquan
J
Wang
Kunlin
K
Zhu
Hongwei
H
Li
Zhen
Z
Jia
Yi
Y
Gui
Xuchun
X
Guo
Ning
N
Li
Xinming
X
Ma
Chaoran
C
Wu
Dehai
D
D003460:Crystallization / Q000379:methods; D011211:Electric Power Supplies; D004563:Electrochemistry / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008839:Microelectrodes; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D010777:Photochemistry / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry*; D012993:Solar Energy; D013499:Surface Properties
D046911:Macromolecular Substances; D037742:Nanotubes, Carbon; D012825:Silicon