Journal
MACROMOLECULAR RAPID COMMUNICATIONS
Volume 32, Issue 18, Pages 1472-1477Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.201100247
Keywords
metallopolymers; near-infrared absorption; platinum; structure; synthesis
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Funding
- Hong Kong Baptist University [FRG2/09-10/091]
- Hong Kong Research Grants Council [HKBU202607]
- University Grants Committee of HKSAR, China [AoE/P-03/08]
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences
- Hong Kong Polytechnic University [A-PD1G]
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Two near-infrared (NIR) absorbing metallopolyynes of platinum (P1 and P2) functionalized with a weakly electron-donating fluorene unit and two strong electron acceptors (viz. benzo[1,2-c: 4,5-c'] bis([1,2,5] thiadiazole) and [1,2,5] thiadiazolo[3,4-i] dibenzo[a, c] phenazine) were synthesized and applied for NIR photovoltaic applications. With these designed weak donor-strong acceptor electronic traits, these metallopolymers possess narrow bandgaps of 1.54 and 1.65 eV and a low HOMO level of about 5.50 eV, thus inducing a power conversion efficiency up to 1% for bulk heterojunction solar cells at the NIR wavelength.
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