Investigation of optical responsivity of BiFeO3-based photodetectors equipped with different electrode patterns

Ricky W. Chuang, Tsung Han Tsai, Wei Che Chuang, Cheng-Liang Huang

研究成果: Conference contribution

摘要

In this study, two different metal electrode patterns are adopted, namely, the straight and curved electrodes, each of which contains 5 different numbers of pairs of interdigitated electrodes. The foregoing design is meant to investigate the resultant photocurrent and dark current magnitudes and the associated hysteresis loops by exposing samples of different numbers of pairs of electrodes to different incident light polarizations. Both linearly and circularly polarized lights are used as incident lights for the measurement of photocurrent. Regardless of its handedness, it is found that the device with curved interdigital electrodes can generate higher photocurrent, vis-à-vis ones with straight interdigitated electrodes. In particular, the device with 8 pairs of curved interdigitated electrodes could have the current enhanced by up to 60%. Finally, among all the photodetectors tested, the highest responsivity of up to 2.15 A/W has also been achieved.

原文English
主出版物標題Oxide-based Materials and Devices XIV
編輯David J. Rogers, Ferechteh H. Teherani
發行者SPIE
ISBN(電子)9781510659490
DOIs
出版狀態Published - 2023
事件Oxide-based Materials and Devices XIV 2023 - San Francisco, United States
持續時間: 2023 1月 302023 2月 2

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
12422
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferenceOxide-based Materials and Devices XIV 2023
國家/地區United States
城市San Francisco
期間23-01-3023-02-02

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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