High Selectivity and Wide Range UV Photodetection in PEDOT:PSS/ Lu .\text} Sn .\text} O/ZnO Heterojunction

Ultraviolet (UV) photodetectors have received widespread attention in fields, such as corona inspection, flame detection, and UV communication. In this work, a high-performance PEDOT:PSS/Lu _{\text{0}.\text{27}} Sn _{\text{0}.\text{73}} O/ZnO UV detector prepared on Lu _{\text{0}.\text{27}} Sn _{\te...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2024-03, p.1-6
Main Authors: Zhang, Dan, Liang, Jiarong, Cai, Han, Lin, Zhuogeng, Tang, Guowu, Tang, Xingui, Sun, Qijun, Zheng, Wei
Format: Article
Language:English
Subjects:
Absorption
Alloy engineering
Detectors
Heterojunctions
lutetium oxide (Lu<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX"> _{\text{2}}</tex-math> </inline-formula>O<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX"> _{\text{3}}\text{)}</tex-math> </inline-formula>
photodetector
Photonic band gap
Substrates
tin oxide (SnO<inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX"> _{\text{2}}\text{)}</tex-math> </inline-formula>
ultraviolet (UV)
Zinc oxide
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Summary:Ultraviolet (UV) photodetectors have received widespread attention in fields, such as corona inspection, flame detection, and UV communication. In this work, a high-performance PEDOT:PSS/Lu _{\text{0}.\text{27}} Sn _{\text{0}.\text{73}} O/ZnO UV detector prepared on Lu _{\text{0}.\text{27}} Sn _{\text{0}.\text{73}} O films (bandgap \sim 4.9 eV) is obtained through alloy engineering. At 0-V bias, the device is sensitive to a wide range UV (230-400 nm, which covers the UVA, UVB, and UVC bands) illumination and exhibits a rapid response of \sim 90.7 ms. As compared with the performance of Au/Lu _{\text{0}.\text{27}} Sn _{\text{0}.\text{73}} O/ZnO device, a quicker response, higher sensitivity to UVC, and wider range UV photoresponse are equipped in this device. This confirms the key role of the heterojunction constructed by PEDOT:PSS and Lu _{\text{0}.\text{27}} Sn _{\text{0}.\text{73}} O film plays in the excellent performance of this device under 0-V bias.
ISSN:0018-9383
DOI:10.1109/TED.2024.3369574