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Keyword: Photodetectors

NiO Quantum dots Doped Triple Cation Perovskite \(\mathrm{CsMAFAPbI_2Br_2}\) Heterojunction Photodetector with High Responsivity

by Yara Abdullah Alwadei, Manar Saleh Alshatwi, Norah Mohammed Alwadai, Maymunah Abdullah AlWehaibi, Mohammad Faihan Alotaibi, Maha Mahmoud Lashin and Mohammad Hayal Alotaibi

Advances in Science, Technology and Engineering Systems Journal, Volume 7, Issue 3, Page # 161–165, 2022; DOI: 10.25046/aj070318

Abstract:

Optoelectronic devices applications based on Organic–inorganic perovskites are promising and effective low-cost energy materials due to their exceptional physical properties which include high carrier mobility, high optical absorption coefficient, and long carrier diffusion length. In the presented work, a TiO2/NiO+5% Fe quantum dots (QDs)–doped CsMAFAPbI2Br2 perovskite heterojunction broadband photodetector was fabricated on FTO/glass substrate. The…

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(This article belongs to Section Coatings & Films in Materials Science (MCF))

Material, Structural Optimization and Analysis of Visible-Range Back-Illuminated OPFET photodetector

by Jaya V. Gaitonde and Rajesh B. Lohani

Advances in Science, Technology and Engineering Systems Journal, Volume 4, Issue 4, Page # 485–502, 2019; DOI: 10.25046/aj040459

Abstract:

High gain-bandwidth product and visible/UV contrast photodetectors are vital in Visible Light Communication (VLC) and Ultraviolet (UV) reflectance imaging applications respectively. We adopt material and structural optimization to perceive such photodetectors with back-illuminated Optical Field Effect Transistor (OPFET) wherein any potential difference in absorption coefficient of the semiconductor material between the visible and the UV…