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Beyond the Bandgap Photoluminescence of Colloidal Semiconductor Nanocrystals

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Title
Beyond the Bandgap Photoluminescence of Colloidal Semiconductor Nanocrystals
Author(s)
Rajesh Bera; Gahyeon Kim; Dongsun Choi; Jihye Kim; Kwang Seob Jeong
Publication Date
2021-03
Journal
The journal of physical chemistry letters, v.12, no.10, pp.2562 - 2569
Publisher
NLM (Medline)
Abstract
Intraband transitions of colloidal semiconductor nanocrystals, or the electronic transitions occurring in either the conduction band or valence band, have recently received considerable attention because utilizing the intraband transitions provides new approaches for applications such as photodetectors, imaging, solar cells, lasers, and so on. In the past few years, it has been revealed that observing the intraband transition is not limited for temporal measurement such as ultrafast spectroscopy but available for steady-state measurement even under ambient conditions with the help of self-doped semiconductor nanocrystals. Considering the large absorption coefficient of the steady-state intraband transition comparable to that of the bandgap transition, the use of the intraband transition will be promising for both fundamental and application studies. Here, we summarize the recent progress in studies on intraband photoluminescence of self-doped semiconductor nanocrystals and discuss key questions to be addressed in future research.
URI
https://pr.ibs.re.kr/handle/8788114/9574
DOI
10.1021/acs.jpclett.1c00142
ISSN
1948-7185
Appears in Collections:
Center for Molecular Spectroscopy and Dynamics(분자 분광학 및 동력학 연구단) > 1. Journal Papers (저널논문)
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