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Synthesis and Photovoltaic Properties of Small Molecules Based on Triphenylamine and Diketopyrrolopyrrole for Organic Photovoltaic Cells

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Authors

이종원; 조원호

Issue Date
2012
Publisher
한국고분자학회
Citation
2012 춘계학술대회 연구논문 초록집, 제37권 1호, p. 115
Keywords
공학
Abstract
Various types of small molecules for donor materials of organic photovoltaics have recently been developed due to their advantages over conjugated polymers such as
stronger absorption coefficient, better thermal stability and easier synthesis. In this study, we synthesized three small molecules based on triphenylamine (TPA) and
diketopyrrolopyrrole (DPP), TPA(DPP)1, TPA(DPP)2, and TPA(DPP)3, in which TPA and DPP are electron-rich unit and electron-deficient unit, respectively, DPP units are
attacted to the para-positions of phenyl groups in TPA to produce TPA(DPP)1, TPA(DPP)2, and TPA(DPP)3. Chemical structures and electrochemical properties of the three small
molecules are measured by NMR, GC-mass, UV-vis absorption, and cyclic voltammetry. The solar cell performances of the cells with three different small molecules are measured
and analyzed in terms of molecular symmetry.
Language
English
URI
https://hdl.handle.net/10371/81410
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