Fast-Response Metal-Semiconductor-Metal Junction Ultraviolet Photodetector Based on ZnS:Mn Nanorod Networks via a Cost-Effective Method

Autor:	Zhongping Wang, He Wang, Raheel Ahmed Janjua, Da Huang, Rucheng Dai, Zengming Zhang, Zejun Ding, Sara Saeed
Rok vydání:	2021
Předmět:	Materials science business.industry General Chemical Engineering Photodetector General Chemistry medicine.disease_cause Metal semiconductor Article Metal Chemistry visual_art medicine visual_art.visual_art_medium Optoelectronics Effective method Nanorod business QD1-999 Ultraviolet
Zdroj:	ACS Omega ACS Omega, Vol 6, Iss 48, Pp 32930-32937 (2021)
ISSN:	2470-1343
Popis:	In this work, Mn2+-doped ZnS nanorods were synthesized by a facile hydrothermal method. The morphology, structure, and composition of the as-prepared samples were investigated. The temperature-dependent photoluminescence of ZnS:Mn nanorods was analyzed, and the corresponding activation energies were calculated by using a simple two-step rate equation. Mn2+-related orange emission (4T1 → 6A1) demonstrates high stability and is comparatively less affected by the temperature variations than the defect-related emission. A metal–semiconductor–metal junction ultraviolet photodetector based on the nanorod networks has been fabricated by a cost-effective method. The device exhibits visible blindness, superior ultraviolet photodetection with a responsivity of 1.62 A/W, and significantly fast photodetection response with the rise and decay times of 12 and 25 ms, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8b75ecdfbc1083776d7520724360f68 https://pubmed.ncbi.nlm.nih.gov/34901644 Zobrazit plný text záznamu