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Hybrid Solar Cells with In-Situ Prepared Inorganic Nanoparticles/Polymer Bulk Heterojunction Films
- Hybrid Solar Cells with In-Situ Prepared Inorganic Nanoparticles/Polymer Bulk Heterojunction Films
- Kwak, Eun-Joo; Woo, Sungho; Lee, Hyena; Kim, Hwajeong; Kim, Youngkyoo
- DGIST Authors
- Woo, Sungho
- Issue Date
- Journal of Nanoelectronics and Optoelectronics, 7(5), 434-438
- Article Type
- Bulk-Heterojunction; Chlorine Compounds; Conversion Efficiency; Cosolvents; Electron Acceptor; Fullerene Derivative; Heterojunctions; Hybrid Bulk Heterojunction; Hybrid Solar Cells; In-Situ; In-Situ Reaction; In-Situ Reactions; Inorganic Nanoparticle; Lead Sulfide; Nanoparticles; Pbs; Poly(3-Hexylthiophene); Power Conversion Efficiencies; Reaction Conditions; Scattering Effects; Solar Cells; Sulfur
- 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.
- American Scientific Publishers
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- Convergence Research Center for Solar Energy1. Journal Articles
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