Enhancement of CdSe/Poly(3-hexylthiophene) Bulk Heterojunction Solar Cell Efficiency by Surface Ligand Exchange and Thermal Treatment

Title
Enhancement of CdSe/Poly(3-hexylthiophene) Bulk Heterojunction Solar Cell Efficiency by Surface Ligand Exchange and Thermal Treatment
Author(s)
박진호트롱윈탐윈
Keywords
POLYMER PHOTOVOLTAIC CELLS; CDSE QUANTUM DOTS; N-BUTYLAMINE; NANOCRYSTALS; POLY(3-HEXYLTHIOPHENE); PERFORMANCE; SIZE; PHOTOCONDUCTIVITY; NANOPARTICLES; TEMPERATURE
Issue Date
201210
Publisher
IOP PUBLISHING LTD
Citation
JAPANESE JOURNAL OF APPLIED PHYSICS, v.51, no.10
Abstract
Bulk heterojunction solar cells were fabricated by blending semiconducting cadmium selenide nanoparticles with various capping ligands and regioregular poly(3-hexylthiophene). The effects of surface ligand modification of CdSe nanoparticles and thermal treatment of fabricated cells on the device performance were investigated. It was found that surface ligands of nanoparticles could affect the device performance by increasing the charge carrier separation at the nanoparticle/polymer interface by quenching photoluminescence. Thermal treatment of fabricated cell structure at 140 degrees C was found to be optimal for device performance, resulting in a maximum power conversion efficiency of 1.17% under AM1.5G simulated solar irradiation. (C) 2012 The Japan Society of Applied Physics
URI
http://hdl.handle.net/YU.REPOSITORY/27106http://dx.doi.org/10.1143/JJAP.51.10NE27
ISSN
0021-4922
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공과대학 > 화학공학부 > Articles
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