Mir, Wasim J. ; Livache, Clément ; Goubet, Nicolas ; Martinez, Bertille ; Jagtap, Amardeep ; Chu, Audrey ; Coutard, Nathan ; Cruguel, Hervé ; Barisien, Thierry ; Ithurria, Sandrine ; Nag, Angshuman ; Dubertret, Benoit ; Ouerghi, Abdelkarim ; Silly, Mathieu G. ; Lhuillier, Emmanuel (2018) Strategy to overcome recombination limited photocurrent generation in CsPbX3 nanocrystal arrays Applied Physics Letters, 112 (11). ISSN 0003-6951
Full text not available from this repository.
Official URL: https://doi.org/10.1063/1.5009432
Related URL: http://dx.doi.org/10.1063/1.5009432
Abstract
We discuss the transport properties of CsPbBrxI3-x perovskite nanocrystal arrays as a model ensemble system of caesium lead halide-based perovskite nanocrystal arrays. While this material is very promising for the design of light emitting diodes, laser, and solar cells, very little work has been devoted to the basic understanding of their (photo)conductive properties in an ensemble system. By combining DC and time-resolved photocurrent measurements, we demonstrate fast photodetection with time response below 2 ns. The photocurrent generation in perovskite nanocrystal-based arrays is limited by fast bimolecular recombination of the material, which limits the lifetime of the photogenerated electron-hole pairs. We propose to use nanotrench electrodes as a strategy to ensure that the device size fits within the obtained diffusion length of the material in order to boost the transport efficiency and thus observe an enhancement of the photoresponse by a factor of 1000
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Perovskite nanocrystals; Nanocrystal; Photodetection; Photoconduction Electronic Properties; Perovskites; Transport; CsPbX3. |
| ID Code: | 142175 |
| Deposited On: | 11 Jan 2026 05:29 |
| Last Modified: | 11 Jan 2026 05:29 |
Repository Staff Only: item control page
