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Enhanced photosensitivity in a hybrid WSe2/2DEG heterojunction using a buried TiO2 photosensitive layer

التفاصيل البيبلوغرافية
العنوان: Enhanced photosensitivity in a hybrid WSe2/2DEG heterojunction using a buried TiO2 photosensitive layer
المؤلفون: Wentai Zhu, Xinyue Zhang, YuanYuan Liu, Guangyao Sun, Guozhen Liu, Ju Gao, Zenghua Cai, Yucheng Jiang, Run Zhao
المصدر: Materials Research Express, Vol 11, Iss 5, p 056404 (2024)
بيانات النشر: IOP Publishing, 2024.
سنة النشر: 2024
المجموعة: LCC:Materials of engineering and construction. Mechanics of materials
LCC:Chemical technology
مصطلحات موضوعية: hybrid heterojunction, ultra-fast photoresponse, enhanced photoconductivity, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185
الوصف: In this study, we integrated the wide-bandgap material TiO _2 as a photosensitive layer with the WSe _2 /2DEG heterostructure, creating a hybrid WSe _2 /TiO _2 /2DEG heterojunction. This hybrid structure significantly improves the device’s photosensitivity, exhibiting a high rectification effect and a switching ratio of 10 ^3 . The photodetector shows excellent performance, with a responsivity of 0.61 A W ^−1 and a detectivity of up to 1.1×10 ^11 Jones at 405 nm, along with a very fast photoresponse speed. The buried TiO _2 channel allows photogenerated electrons to easily flow through the reduced barrier at the depleted region. This hybrid heterojunction holds promise for the development of high-performance photoelectric devices.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2053-1591
Relation: https://doaj.org/toc/2053-1591
DOI: 10.1088/2053-1591/ad4baa
URL الوصول: https://doaj.org/article/bad5416c667a457b957a9dc69c3da2f1
رقم الأكسشن: edsdoj.bad5416c667a457b957a9dc69c3da2f1
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20531591
DOI:10.1088/2053-1591/ad4baa