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Photoconductive Curved‐Nanographene/Fullerene Supramolecular Heterojunctions
Author(s) -
Huang Qiang,
Zhuang Guilin,
Jia Hongxing,
Qian Manman,
Cui Shengsheng,
Yang Shangfeng,
Du Pingwu
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201900084
Subject(s) - photocurrent , fullerene , photoconductivity , materials science , heterojunction , supramolecular chemistry , nanoring , optoelectronics , photochemistry , crystallography , crystal structure , chemistry , organic chemistry
This study presents synthesis and characterizations of two novel curved nanographenes that strongly bind with fullerene C 60 to form photoconductive heterojunctions. Films of the self‐assembled curved nanographene/fullerene complexes, which served as the photoconductive layer, generated a significant photocurrent under light irradiation. Gram‐scale quantities of these curved nanographenes (TCR and HCR) as the “crown” sidewalls can be incorporated into a carbon nanoring to form molecular crowns, and the molecular structure of C 60 @TCR is determined by single‐crystal X‐ray diffraction. The UV/Vis absorption and emission spectra, and theoretical studies revealed their unique structural features and photophysical properties. Time‐resolved spectroscopic results clearly suggest fast photoinduced electron transfer process in the supramolecular heterojunctions.