Visible blind ultraviolet photodetector based on CH3NH3PbCl3 thin film.
Opt Express
; 24(8): 8411-9, 2016 Apr 18.
Article
em En
| MEDLINE
| ID: mdl-27137279
ABSTRACT
We report a prototypical device of CH3NH3PbCl3 film ultraviolet photodetectors that were fabricated with a coplanar metal-semiconductor-metal Au interdigital electrode configuration. Pure phase CH3NH3PbCl3 films with a good crystallinity were formed by a hybrid sequential deposition process featured with inter-diffusion of PbCl2 and CH3NH3Cl upon annealing. The CH3NH3PbCl3 film photodetector exhibits a high responsivity of 7.56 A /W at 360 nm, a ultraviolet/visible rejection ratio (R360 nm/R500 nm) was about two orders of magnitude and fast response speed with a rising time of 170 µs and a decay time of 220 µs. All the above results demonstrate CH3NH3PbCl3 film photodetector as a competitive candidate in the application of visible blind UV detectors.
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MEDLINE
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En
Ano de publicação:
2016
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Article