https://scholars.lib.ntu.edu.tw/handle/123456789/504247
Title: | Jacket-like structure of donor-acceptor chromophores-based conducting polymers for photovoltaic cell applications | Authors: | Yang, Y.-L. Lee, Y.-H. Chang, C.-J. Lu, A.-J. Hsu, W.-C. Wang, L. Leung, M.-K. Dai, C.-A. |
Issue Date: | 2010 | Publisher: | John Wiley and Sons Inc. | Journal Volume: | 48 | Journal Issue: | 7 | Start page/Pages: | 1607-1616 | Source: | Journal of Polymer Science, Part A: Polymer Chemistry | Abstract: | Through the Stille coupling polymerization, a series of soluble acceptor/donor quinoxaline/thiophene alternating conducting polymers with a hole-transporting moiety of carbazole as a side chain (PCPQT) has been designed, synthesized, and investigated. The UV-vis measurement of the chargetransferred type PCPQTs of different molecular weights with low polydispersity exhibits a red shifting of their absorption maximum from 530 to 630 nm with increasing chain length (Mn: from 1100 to 19,200). The HOMO and LUMO energy levels of PCPQT can be determined from the cyclic voltammetry measurement to be -5.36 and -3.59 eV, respectively. Solar cells made from PCPQT/PCBM bulk heterojunction show a high open-circuit voltage, Voc of ∼0.75 V, which is significantly higher than that of a solar cell made from conventional poly(3- hexyl thiophene)/PCBM as the active polymer PCPQT has lower HOMO level. Further improvements are anticipated through a rational design of the new low band-gap and the structurally two-dimensional donor-acceptor conducting polymers. © 2010 Wiley Periodicals, Inc. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/504247 | ISSN: | 0887624X | DOI: | 10.1002/pola.23921 | SDG/Keyword: | Absorption maxima; Active polymers; Band gaps; Bulk heterojunction; Donor-acceptors; Fractionation of polymers; Hole transporting; LUMO energy levels; Rational design; Redshifting; Side chains; Stille coupling; Structure property relation; UV-vis spectroscopy; Chromophores; Conducting polymers; Electrochemistry; Heterojunctions; Open circuit voltage; Organic conductors; Photovoltaic cells; Polydispersity; Solar cells; Thiophene; Ultraviolet spectroscopy; Cyclic voltammetry; Manganese; Manganese compounds; Cyclic voltammetry; Conducting polymers |
Appears in Collections: | 凝態科學研究中心 |
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