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.
Original language | English (US) |
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Article number | 18LT02 |
Journal | Journal of Physics Condensed Matter |
Volume | 30 |
Issue number | 18 |
DOIs | |
State | Published - Apr 13 2018 |
Keywords
- carrier lifetime
- inkjet printing
- inorganic perovskite
- nanoparticle inks
- nanoparticles
- photovoltaics
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics