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Indexed by:期刊论文
Date of Publication:2015-01-01
Journal:RSC ADVANCES
Included Journals:SCIE、EI、Scopus
Volume:5
Issue:41
Page Number:32283-32289
ISSN No.:2046-2069
Abstract:A series of tunable absorbing star-shaped BODIPY derivatives containing a different number of carbazole units were designed and synthesized. With the extended conjugated skeleton, their absorption spectra become progressively bathochromic shifted from the red region to the near-infrared region. The compound TAC with four carbazole units exhibits a strong near-infrared absorption up to 850 nm with a high extinction coefficient over 135 000 M-1 cm(-1) and considerable intrinsic hole mobility of 4.82 x 10(-5) cm(2) V-1 s(-1) in SCLC devices. The near-infrared organic solar cells (OSCs) based on TAC exhibit a potential power conversion efficiency of 2.70% and a high open-circuit voltage of 0.85 V.
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