Facile assembly of single α-MoO3 microbelt/β-Ni(OH)2 heterojunction ultraviolet–visible detector with fast switching characteristics

• Published in: Applied nanoscience Vol. 10; no. 6; pp. 1771 - 1777
• Main Authors: Yu, Naisen, Li, Haiou, Wu, Yunfeng
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.06.2020; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Heterojunctions; Heterostructures; Materials Science; Membrane Biology; Molybdenum oxides; Molybdenum trioxide; Nanochemistry; Nanotechnology; Nanotechnology and Microengineering; Nickel compounds; Original Article; Switching; Ultraviolet detectors; Aqueous method; α-MoO; Broad spectral detection; heterostructure; microbelt/β-Ni(OH)
• ISSN: 2190-5509; 2190-5517
• DOI: 10.1007/s13204-020-01335-9

In this paper, we report a simple, low-cost, facile fabrication of single α-MoO 3 Microbelt/β-Ni(OH) 2 heterostructure. The heterostructure consisting of α-MoO 3 microbelt and β-Ni(OH) 2 nanosheets is grown using aqueous method. The device based on the α-MoO 3 microbelt/β-Ni(OH) 2 heterostructure shows the fast switching characteristics with broad spectrum detection. The ultraviolet response is due to the β-Ni(OH) 2 layer, and the visible light detection can be attributed to the existence of substantial gap states in the α-MoO 3 microbelt, which can produce light response in the visible region. The results will provide a new way for fabrication of high-performance broad spectral detection device.