Controlling the morphology of trioctyl phosphine oxide-coated cadmium selenide/poly 3-hexyl thiophene composite active layer for bulk hetero-junction solar cells

Title
Controlling the morphology of trioctyl phosphine oxide-coated cadmium selenide/poly 3-hexyl thiophene composite active layer for bulk hetero-junction solar cells
Author(s)
박진호트롱윈탐윈[트롱윈탐윈]Matthew L. Monroe[Matthew L. Monroe]움메파바[움메파바]티모시 앤더슨[티모시 앤더슨]
Keywords
PHOTOVOLTAIC DEVICES; POLYMER COMPOSITES; NANOCRYSTALS; EFFICIENCY
Issue Date
201107
Publisher
SPRINGER
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.28, no.7, pp.1625 - 1631
Abstract
Bulk hetero-junction solar cells with CdSe nanoparticles-P(3)HT (poly 3-hexyl thiophene) composite active layer were fabricated, and the control of morphological feature of the nanoparticle-polymer composite thin films was investigated. A binary solvent composed of a primary solvent with intermediate polarity and a secondary solvent with high polarity was found to be effective in controlling the dispersion of the CdSe nanocrystals in the P(3)HT matrix, and the modification of the nanocrystal surface by liquid-liquid extraction process was found to be effective in achieving the desired composite film morphology. Surface roughness of the active layer was optimized for various loadings of CdSe nanoparticles and could be reproducibly controlled to less than 10 nm.
URI
http://hdl.handle.net/YU.REPOSITORY/24880http://dx.doi.org/10.1007/s11814-011-0015-7
ISSN
0256-1115
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공과대학 > 화학공학부 > Articles
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