CuInS₂ nanocrystals/PEDOT:PSS composite counter electrode for dye-sensitized solar cells.
An inorganic/organic nanocomposite comprised of CuInS(2) nanocrystals and poly(styrenesulfonate)-doped poly(3,4-ethylenedioxythiophene) (CIS/PEDOT:PSS) was explored as a promising candidate for the counter electrode (CE) in dye-sensitized solar cells (DSCs). Cyclic voltammetry measurements confirmed that this composite electrode exhibited better catalytic activity compared with pristine CuInS₂ or PEDOT:PSS electrode. Electrochemical impedance spectroscopy revealed that the composite film constitutes a three-dimensional catalytic network. The DSC using this composite CE can yield 6.50% photoelectric conversion efficiency, which is comparable to that of the conventional platinum CE (6.51%) and better than that of the pristine CuInS₂ (5.45%) or PEDOT:PSS (3.22%) electrode.
Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, People's Republic of China.
Zhongyi
Z
Zhang
Xiaoying
X
Zhang
Hongxia
H
Xu
Zhihong
Z
Liu
Shuping
S
Pang
Xinhong
X
Zhou
Shanmu
S
Dong
Xiao
X
Chen
Guanglei
G
Cui
D004396:Coloring Agents / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D003460:Crystallization / Q000379:methods; D011211:Electric Power Supplies; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007204:Indium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry*; D012643:Selenium / Q000737:chemistry*; D012993:Solar Energy; D013876:Thiophenes / Q000737:chemistry*
D004396:Coloring Agents; D011137:Polystyrenes; D013876:Thiophenes; C101793:copper indium diselenide; C533756:poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate); D007204:Indium; D003300:Copper; D012643:Selenium