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16 March 2023 Role of oxygen-sensitization temperature on physical characteristics of CBD-grown lead selenide thin films on quartz substrates (Conference Presentation)
Jeung Hun Park, Sejeong Park, Richard S. Kim, Russell Dahl
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Proceedings Volume PC12422, Oxide-based Materials and Devices XIV; PC124220U (2023) https://doi.org/10.1117/12.2648456
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
Here we investigated the role of oxygen sensitization temperature on physical properties of PbSe thin films. Polycrystalline thin films were deposited on quartz substrates using CBD method and sensitized at different treatment temperatures in an oxygen atmosphere. High temperature sensitization induces fusions/aggregations of individual PbSe grains and forms PbO and SeO2 phases in PbSe matrix. Carrier mobility sensitized at a high temperature increased by ~500 times, in comparison with the sample sensitized at a lower temperature. This mobility improvement could be attributed to the surface, dislocation and defect passivation effects via oxygen diffusing into PbSe and occupying Se vacancies.
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Jeung Hun Park, Sejeong Park, Richard S. Kim, and Russell Dahl "Role of oxygen-sensitization temperature on physical characteristics of CBD-grown lead selenide thin films on quartz substrates (Conference Presentation)", Proc. SPIE PC12422, Oxide-based Materials and Devices XIV, PC124220U (16 March 2023); https://doi.org/10.1117/12.2648456
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KEYWORDS
Thin films
Lead
Oxygen
Quartz
Mid-IR
Photodetectors
Signal processing
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