BROWSE

Related Researcher

Author

Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

ITEM VIEW & DOWNLOAD

Synthesis of a conjugated copolymer with benzodithiophene and benzimidazole units

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Synthesis of a conjugated copolymer with benzodithiophene and benzimidazole units
Author
Song, SuheeKo, Seo-JinKim, Ju AeJin, YoungeupKim, IlKim, Jin YoungSuh, Hongsuk
Keywords
Benzimidazoles; Conjugated copolymers; Electron donor acceptors; Electron-deficient units; Organic photovoltaics; Photovoltaics; Power conversion efficiencies; Semiconducting copolymers
Issue Date
201305
Publisher
NATURE PUBLISHING GROUP
Citation
POLYMER JOURNAL, v.45, no.5, pp.555 - 559
Abstract
new accepter unit, dimethyl-2H-benzimidazole, was prepared and utilized for the synthesis of conjugated polymers containing an electron donor-acceptor pair for organic photovoltaics (OPVs). A dimethyl-2H-benzimidazole unit was designed to replace the benzothiadiazole (BT) unit of PCDTBT. An advantage of dimethyl-2H-benzimidazole compared with the BT moiety of PCDTBT is that the solubility of the polymer is improved while the 1,2-quinoid form is maintained to lead the coplanarity of the backbone. New semiconducting copolymers with dialkoxybenzo[1,2-b:3,4-b'] dithiophene as the electron-rich unit and 2,2-dimethyl-4,7-di(2-thienyl)-2H-benzimidazole as the electron-deficient unit were synthesized by Pd(0)-catalyzed Stille coupling polymerization. The resulting P2:PC71BM device had a open circuit voltage (V-OC) value of 0.65V, a short circuit current density (J(SC)) value of 1.86mAcm(-2) and a FF value of 0.39, with a final power conversion efficiency (PCE) value of 0.47%.
URI
Go to Link
DOI
http://dx.doi.org/10.1038/pj.2012.168
ISSN
0032-3896
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU