Journal
ACS APPLIED NANO MATERIALS
Volume 5, Issue 5, Pages 6094-6099Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsanm.2c01421
Keywords
type-II Dirac semimetal; NiTe2 nanosheets; photodetector; high sensitive; broadband response
Funding
- Natural Science Foundation of Shandong Province [ZR2017BB003]
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A facile solvothermal method was developed to prepare NiTe2 nanosheets, which were found to be suitable for high-sensitivity photodetectors and exhibited high environmental stability.
Materials showing type II Dirac fermions can generate abundant physical properties. NiTe2 is a type-II Dirac semimetal, however, most of the synthesis methods for 2D NiTe2 require a high temperature (>550 degrees C) or complex manipulations, leading to environmentally unstable products. Herein, a facile solvothermal method is designed to prepare NiTe2 nanosheets. Significantly, a NiTe2 nanosheet-based flexible photodetector responds with high sensitivy to wide range incident light from 450 to 1550 nm. Moreover, the NiTe2 nanosheets maintain high environmental stability for 30 days, and the output current of the device shows negligible decay over time.
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