Notable peak voltage and sensitivity as well as optical-communication of the inclined Bi2Sr2CuOy thin film with different wavelength lasers

IF 2.5 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Physics A Pub Date : 2025-04-03 DOI:10.1007/s00339-025-08484-0

Xianwu Tang, Yanchao Zhang, Ming Liu, Yuxuan Jiang, Xueyao Lu, Gangyi Zhu, Yongjin Wang, Xuebin Zhu

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引用次数: 0

Abstract

In this work, the laser-induced thermoelectric voltage (LITV) of the solution-deposited inclined Bi₂Sr₂CuO_y (BSCO) thin films with different wavelength semiconductor lasers was investigated. Microstructure results indicate the BSCO thin film inclined growth along the substrate with the same angle. Obvious LITV keeps a linear increase with the increased power density for each wavelength laser. The peak voltage is over 40 mV at the power density of 40 mW/cm². It is slightly different with the laser wavelength, caused by the difference in optical absorption and light penetration depth. The sensitivity is higher than 0.8 and increases to 1.15 V·cm²/W with the laser changes from green to ultraviolet. Furthermore, based on the LITV effect of the BSCO thin film, the carry information can be transmitted and decoded correctly via the optical communications system composed of the light diode laser. All these results demonstrate the potential application and favorable properties of the inclined BSCO thin films in broad-spectrum response of photodetection.

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倾斜 Bi2Sr2CuOy 薄膜与不同波长激光器的显著峰值电压、灵敏度和光通信性能

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来源期刊

Applied Physics A 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.40%

发文量

964

审稿时长

38 days

期刊介绍： Applied Physics A publishes experimental and theoretical investigations in applied physics as regular articles, rapid communications, and invited papers. The distinguished 30-member Board of Editors reflects the interdisciplinary approach of the journal and ensures the highest quality of peer review.