研究目的
Investigating the performance of back-to-back Schottky junction photodetectors based on CVD grown CsPbBr3 microcrystalline striped films.
研究成果
The back-to-back Schottky junction photodetectors based on CVD grown CsPbBr3 microcrystalline striped films exhibit high performance with a significant on/off ratio, high responsivity, and fast response speed. The enhanced stability and performance are attributed to the high crystal quality of the CsPbBr3 films and the effective Schottky barriers at the perovskite/ITO interface.
研究不足
The study does not address the long-term stability of the photodetectors under continuous operation or their performance under varying environmental conditions beyond temperature.
1：Experimental Design and Method Selection:
The study employs the chemical vapor deposition (CVD) method for growing CsPbBr3 microcrystalline films on ITO electrodes to fabricate back-to-back Schottky junction photodetectors.
2：Sample Selection and Data Sources:
CsPbBr3 microcrystalline striped films are synthesized on interdigital (IDL) patterned ITO electrodes.
3：List of Experimental Equipment and Materials:
The reactants include CsBr (
4：9%) and PbBr2 (0%) in a
1M ratio, with an alumina boat and laser etched IDL ITO substrates used in the CVD process.
5：Experimental Procedures and Operational Workflow:
The CVD process involves heating the reactants to 610°C with Ar flow, followed by natural cooling to room temperature.
6：Data Analysis Methods:
The performance of the photodetectors is evaluated through current-voltage characteristics, responsivity, detectivity, and response speed measurements.
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