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Hybrid Solar Cells with In-Situ Prepared Inorganic Nanoparticles/Polymer Bulk Heterojunction Films

Title
Hybrid Solar Cells with In-Situ Prepared Inorganic Nanoparticles/Polymer Bulk Heterojunction Films
Authors
Kwak, Eun-JooWoo, SunghoLee, HyenaKim, HwajeongKim, Youngkyoo
DGIST Authors
Woo, Sungho
Issue Date
2012-10
Citation
Journal of Nanoelectronics and Optoelectronics, 7(5), 434-438
Type
Article
Article Type
Article
Keywords
Bulk-HeterojunctionChlorine CompoundsConversion EfficiencyCosolventsElectron AcceptorFullerene DerivativeHeterojunctionsHybrid Bulk HeterojunctionHybrid Solar CellsIn-SituIn-Situ ReactionIn-Situ ReactionsInorganic NanoparticleLead SulfideNanoparticlesPbsPoly(3-Hexylthiophene)Power Conversion EfficienciesReaction ConditionsScattering EffectsSolar CellsSulfur
ISSN
1555-130X
Abstract
Lead sulfide (PbS) nanoparticles were generated by the in-situ reaction of lead chloride (II) and sulfur in the presence of poly (3-hexylthiophene) (P3HT) dissolved in the co-solvents. Three different reaction times were used to examine the effect of the PbS reaction conditions. The in-situ generated PbS nanoparticles in the P3HT matrix were spherical with a diameter of 15~25 nm. The P3HT:PbS composite materials were mixed with a soluble fullerene derivative ([6,6]-phenyl-C61-butyric acid methyl ester-PCBM) for the fabrication of hybrid solar cells. The hybrid (P3HT:PCBM:PbS) solar cells exhibited similar performance to each other, but their performance was better than the control (P3HT:PCBM) solar cells. In particular, the optimized hybrid solar cells showed ca. 14% improved power conversion efficiency due to the larger increase in short circuit current density (~30%). This improvement was attributed to the PbS nanoparticles acting as electron acceptors and a minor contribution from scattering effect. Copyright © 2012 American Scientific Publishers.
URI
http://hdl.handle.net/20.500.11750/5349
DOI
10.1166/jno.2012.1370
Publisher
American Scientific Publishers
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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