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Rational Synthesis of 1D Hyperbranched Heterostructures with Enhanced Optoelectronic Performance
Author(s) -
Li Xuefei,
Zhang Yadong,
Zhai Li,
Tao ChenLei,
Xu Dan,
Mu Zhangyan,
Ding Mengning,
Wu XueJun
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202012537
Subject(s) - heterojunction , materials science , nanowire , nanotechnology , rational design , optoelectronics
One‐dimensional (1D) hyperbranched heterostructures (HBHSs) with abundant interfaces are rendered with various interfacial phenomena and functionalities. However, the rational synthesis of 1D HBHSs with desired spatial architecture and specific interface remains a great challenge. Here, we report a seeded growth method for controlled synthesis of two extraordinary types of HBHSs, in which high‐intensity of CdS branches selectively grow on 1D nanowire (NW) trunks with different growth behaviors. The composition of the HBHSs can be further tuned by combining with cation exchange method, which enriches the variety of the HBHSs. The optoelectronic devices based on a single HBHS were fabricated and exhibit a better photoresponse performance compared with that of a single NW trunk. This advance provides a strategy for the controlled synthesis HBHSs with complex morphology and offers a platform for exploring their applications for photo harvesting and conversion.