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High-Responsivity Planar Photodetector Based on Methylammonium Lead Bromide Perovskite Thin Film.
- Source :
- Photonics; Sep2023, Vol. 10 Issue 9, p1043, 8p
- Publication Year :
- 2023
-
Abstract
- We have fabricated planar interdigitated photodetectors exhibiting high responsivity. These detectors are based on thin layers of methylammonium lead bromide (MAPbBr<subscript>3</subscript>) at 90 nm thickness. MAPbBr<subscript>3</subscript> thin films were first characterized on glass (borosilicate) substrates using absorption and photoluminescence measurements showing a high absorption edge at 521 nm and strong emission at 530 nm, as expected. MAPbBr<subscript>3</subscript> thin films were then deposited on top of interdigitated electrodes, hence producing planar photodetectors with responsivity up to 0.4 A/W. Such higher performances were attributed to the interdigitated design, low crack density (0.05 µm<superscript>−2</superscript>), and lower resistivity (20 MΩ.cm) compared to MAPbBr<subscript>3</subscript> single crystal. Therefore, this work highlights MAPbBr<subscript>3</subscript> thin films as very promising for photodetection applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23046732
- Volume :
- 10
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Photonics
- Publication Type :
- Academic Journal
- Accession number :
- 172414683
- Full Text :
- https://doi.org/10.3390/photonics10091043