研究目的
Investigating the effect of IR radiation on photoconduction of two charge-density waves (CDWs) in the monoclinic phase of quasi-1D conductor NbS3 (NbS3-II).
研究成果
The study shows that the threshold field of CDW-1 increases with increasing power W, while for CDW-2, parameter Et decreases with increasing W, indicating specific coupling of CDW and basic lattice and proving the electron nature of CDW-2. The microwave irradiation of the NbS3-II nanosample may provide relatively high photoresponse to IR radiation.
研究不足
The study is limited to the effect of IR radiation on photoconduction in NbS3-II, and the comprehensive interpretation of a decrease in the threshold field of CDW-2 under IR irradiation is missing.
1：Experimental Design and Method Selection:
The study involves the effect of IR radiation on photoconduction of CDWs in NbS3-II, using LED with a radiation wavelength of 940 nm for IR irradiation.
2：Sample Selection and Data Sources:
Samples with a thickness of no greater than
3：1 μm are chosen for the study. List of Experimental Equipment and Materials:
LED with a radiation wavelength of 940 nm, high-resistance and low-resistance nanosamples of NbS3-II.
4：Experimental Procedures and Operational Workflow:
The study includes measuring I–V characteristics at several LED powers and temperatures, and analyzing the effect of microwave irradiation on CDW coherence.
5：Data Analysis Methods:
The analysis involves studying the dependence of threshold field Et and linear conductivity σlin on IR-radiation power W, and the effect of microwave irradiation on CDW coherence.
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