Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/152830
Title: One-pot synthesis and structural evolution of colloidal cesium lead halide-lead sulfide heterostructure nanocrystals for optoelectronic applications
Authors: Jagadeeswararao, Metikoti
Vashishtha, Parth
Hooper, Thomas J. N.
Kanwat, Anil
Lim, Melvin Jia Wei
Vishwanath, Sujaya Kumar
Yantara, Natalia
Park, Taewook
Sum, Tze Chien
Chung, Dae Sung
Mhaisalkar, Subodh Gautam
Mathews, Nripan
Keywords: Engineering::Materials::Photonics and optoelectronics materials
Issue Date: 2021
Source: Jagadeeswararao, M., Vashishtha, P., Hooper, T. J. N., Kanwat, A., Lim, M. J. W., Vishwanath, S. K., Yantara, N., Park, T., Sum, T. C., Chung, D. S., Mhaisalkar, S. G. & Mathews, N. (2021). One-pot synthesis and structural evolution of colloidal cesium lead halide-lead sulfide heterostructure nanocrystals for optoelectronic applications. Journal of Physical Chemistry Letters, 12(39), 9569-9578. https://dx.doi.org/10.1021/acs.jpclett.1c02915
Project: NRF-CRP14-2014-03 
04INS000581C150 
NRF-NRFI-2018-04 
RG91/19 
MOE2019-T2-1-006 
Journal: Journal of Physical Chemistry Letters 
Abstract: Heterostructures, combining perovskite nanocrystals (PNC) and chalcogenide quantum dots, could pave a path to optoelectronic device applications by enabling absorption in the near-infrared region, tailorable electronic properties, and stable crystal structures. Ideally, the heterostructure host material requires a similar lattice constant as the guest which is also constrained by the synthesis protocol and materials selectivity. Herein, we present an efficient one-pot hot-injection method to synthesize colloidal all-inorganic cesium lead halide-lead sulfide (CsPbX3 (X = Cl, Br, I)-PbS) heterostructure nanocrystals (HNCs) via the epitaxial growth of the perovskite onto the presynthesized PbS nanocrystals (NCs). Optical and structural characterization evidenced the formation of heterostructures. The embedding of PbS NCs into CsPbX3 perovskite allows the tuning of the absorption and emission from 400 to 1100 nm by tuning the size and composition of perovskite HNCs. The CsPbI3-PbS HNCs show enhanced stability in ambient conditions. The stability, tunable optical properties, and variable band alignments accessible in this system would have implications in the design of novel optoelectronic applications such as light-emitting diodes, photodetectors, photocatalysis, and photovoltaics.
URI: https://hdl.handle.net/10356/152830
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.1c02915
DOI (Related Dataset): 10.21979/N9/H0WCFJ
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1016/j.memsci.2021.119861.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles
IGS Journal Articles
MSE Journal Articles
SPMS Journal Articles

Files in This Item:
File Description SizeFormat 
DrNTU_JPCL_MJ.pdf3.03 MBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 50

3
Updated on Nov 26, 2022

Web of ScienceTM
Citations 50

2
Updated on Nov 26, 2022

Page view(s)

96
Updated on Nov 28, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.