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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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Towards optimization of P3HT:bisPCBM composites for highly efficient polymer solar cells

Cited 20 times inthomson ciCited 19 times inthomson ci
Title
Towards optimization of P3HT:bisPCBM composites for highly efficient polymer solar cells
Author
Yun, Myoung HeeKim, Gi-HwanYang, ChangdukKim, Jin Young
Keywords
Annealing effects; Annealing time; Balanced electrons; Bis-adducts; Blend films; Butyric acids; Layered Structures; Methyl esters; Poly-3-hexylthiophene; Polymer Solar Cells; Power conversion efficiencies; Regio-regular; Solvent annealing; UV-vis spectroscopy
Issue Date
201009
Publisher
ROYAL SOC CHEMISTRY
Citation
JOURNAL OF MATERIALS CHEMISTRY, v.20, no.36, pp.7710 - 7714
Abstract
The optimization of the polymer solar cells based on regioregular poly(3-hexylthiophene) (P3HT) and the bisadduct of phenyl C(61)-butyric acid methyl ester (bisPCBM) is studied thoroughly as a role of solvent-annealing effect as well as different concentration of bisPCBM. In the case of P3HT: bisPCBM of 1 : 0.8 w/w, more balanced electron and hole mobilities are observed, resulting in better performance of the solar cells. Under the best balance conditions such as P3HT: bisPCBM of 1 : 0.8 w/w, the solvent annealing is employed to further clarify the optimization of the devices. Such a treatment leads to the formation of crystalline P3HT domains in the blend films, which is determined by X-ray diffraction, UV-vis spectroscopy, and atomic force microscopy. From our experiment, one can conclude that the best power conversion efficiency of 3.75% is achieved in a layered structure of P3HT: bisPCBM of 1 : 0.8 w/w for a solvent-annealing time of 24 h.
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DOI
http://dx.doi.org/10.1039/c0jm00790k
ISSN
0959-9428
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