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Improved Photovoltaic Properties of Polymer Solar Cells with a Phenyl Compound as an Additive

Title
Improved Photovoltaic Properties of Polymer Solar Cells with a Phenyl Compound as an Additive
Authors
Jeong, S[Jeong, Seonju]Woo, SH[Woo, Sung-Ho]Lyu, HK[Lyu, Hong-Kun]Kim, C[Kim, Cham]Kim, WH[Kim, Wook Hyun]Han, YS[Han, Yoon Soo]
DGIST Authors
Jeong, S[Jeong, Seonju]; Woo, SH[Woo, Sung-Ho]Lyu, HK[Lyu, Hong-Kun]Kim, C[Kim, Cham]; Kim, WH[Kim, Wook Hyun]
Issue Date
2014-08
Citation
Journal of Nanoscience and Nanotechnology, 14(8), 5988-5992
Type
Article
Article Type
Article
Keywords
[6,6]-Phenyl-C61-Butyric Acid Methyl EstersAdditivesChemistryElectron-Withdrawing SubstituentsHole MobilityP3HTPCBMPhenyl CompoundPhenyl CompoundsPolymerPolymer Solar Cells (PSCs)PolymersPower Conversion EfficienciesSolar CellsSolar EnergyUV-Visible Absorption Spectrum
ISSN
1533-4880
Abstract
A phenyl compound with electron withdrawing substituents, 3-fluoro-4-cyanophenol (FCP), was used as an additive in polymer solar cells with a P3HT [poly(3-hexyl thiophene)]:PCBM [[6,6]-phenyl-C61-butyric acid methyl ester] blend film. Under simulated solar illumination of AM 1.5 (100 mW/cm 2), the devices fabricated using a P3HT:PCBM (1:0.9 w:w) layer blended with 5 wt% of FCP achieved an enhanced power conversion efficiency (PCE) of 4.8% due to the improved short circuit current and fill factor, as compared to reference cells with PCE = 4.1%. UV-visible absorption spectra, X-ray measurements and carrier mobility studies revealed that FCP facilitated the ordering of the P3HT chains, resulting in higher absorbance, larger crystal size, closer packing and enhanced hole mobility. Copyright © 2014 American Scientific Publishers.
URI
http://hdl.handle.net/20.500.11750/3062
DOI
10.1166/jnn.2014.8436
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
Division of IoT∙Robotics Convergence Research1. Journal Articles
Division of Nano∙Energy Convergence Research1. Journal Articles
Magnetic-Controlled Materials Research Group1. Journal Articles


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