Inkjet printable-photoactive all inorganic perovskite films with long effective photocarrier lifetimes.
J Phys Condens Matter
; 30(18): 18LT02, 2018 May 10.
Article
em En
| MEDLINE
| ID: mdl-29578449
ABSTRACT
Photoactive perovskite quantum dot films, deposited via an inkjet printer, have been characterized by x-ray diffraction and x-ray photoelectron spectroscopy. The crystal structure and bonding environment are consistent with CsPbBr3 perovskite quantum dots. The current-voltage (I-V) and capacitance-voltage (C-V) transport measurements indicate that the photo-carrier drift lifetime can exceed 1 ms for some printed perovskite films. This far exceeds the dark drift carrier lifetime, which is below 50 ns. The printed films show a photocarrier density 109 greater than the dark carrier density, making these printed films ideal candidates for application in photodetectors. The successful printing of photoactive-perovskite quantum dot films of CsPbBr3, indicates that the rapid prototyping of various perovskite inks and multilayers is realizable.
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MEDLINE
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En
Ano de publicação:
2018
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Article