The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.
Terahertz Conductivity within Colloidal CsPbBr3 Perovskite Nanocrystals: Remarkably High Carrier Mobilities and Large Diffusion Lengths
Abstract
Colloidal CsPbBr3 perovskite nanocrystals (NCs) have emerged as an excellent light emitting material in last one year. Using time domain and time-resolved THz spectroscopy and density functional theory based calculations, we establish 3-fold free carrier recombination mechanism, namely, nonradiative Auger, bimolecular electron-hole recombination, and inefficient trap-assisted recombination in 11 nm sized colloidal CsPbBr3 NCs. Our results confirm a negligible influence of surface defects in trapping charge carriers, which in turn results into desirable intrinsic transport properties, from the perspective of device applications, such as remarkably high carrier mobility (∼4500 cm(2) V(-1) s(-1)), large diffusion length (>9.2 μm), and high luminescence quantum yield (80%). Despite being solution processed and possessing a large surface to volume ratio, this combination of high carrier mobility and diffusion length, along with nearly ideal photoluminescence quantum yield, is unique compared to any other colloidal quantum dot system.
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Metadata
- Authors
- Yettapu, G. R., Talukdar, D., Sarkar, S., Swarnkar, A., Nag, A., Ghosh, P., & Mandal, P.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-07-12
- Volume
- 16
- Issue
- 8
- Pages
- 4838-4848
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2474969864
- Cited by
- 594
- References
- 73
- FWCI
- 31.56
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yettapu, G. R., Talukdar, D., Sarkar, S., Swarnkar, A., Nag, A., Ghosh, P., & Mandal, P. (2016). Terahertz Conductivity within Colloidal CsPbBr3 Perovskite Nanocrystals: Remarkably High Carrier Mobilities and Large Diffusion Lengths. Nano Letters. https://doi.org/10.1021/acs.nanolett.6b01168
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