TY - JOUR
T1 - Two-dimensional CdSe-based nanoplatelets
T2 - their heterostructures, doping, photophysical properties, and applications
AU - Sharma, Manoj
AU - Delikanli, Savas
AU - Demir, Hilmi Volkan
N1 - Funding Information:
This work was supported in part by the National Research Foundation, Prime Minister's Office, Singapore, through the Investigatorship Program under Grant NRF-NRFI2016-08 and in part by the Singapore Agency for Science, Technology and Research (A*STAR) SERC Pharos Program under Grant 152 73 00025.
Funding Information:
Manuscript received April 28, 2019; revised July 24, 2019 and September 17, 2019; accepted September 20, 2019. Date of publication October 18, 2019; date of current version April 28, 2020. This work was supported in part by the National Research Foundation, Prime Minister’s Office, Singapore, through the Investigatorship Program under Grant NRF-NRFI2016-08 and in part by the Singapore Agency for Science, Technology and Research (A∗STAR) SERC Pharos Program under Grant 152 73 00025. (Manoj Sharma and Savas Delikanli contributed equally to this work.) (Corresponding author: Hilmi Volkan Demir.) The authors are with the Luminous! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering and Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 639798, and also with the Department of Electrical and Electronics Engineering and the Department of Physics, UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey (e-mail: [email protected]).
Publisher Copyright:
© 1963-2012 IEEE.
PY - 2019/10/21
Y1 - 2019/10/21
N2 - In the past decade, colloidal quantum wells, also known as 2-D semiconductor nanoplatelets (NPLs), have been added to the colloidal nanocrystal (NC) family. Through the unique control of the thickness with monolayer precision, these novel materials exhibit strong 1-D quantum confinement that offers unique optical properties along with the possibility of fabricating advanced heterostructures, which are not possible with other quantum-confined nanostructures. The 2-D CdX (X = Se, S)-based NPLs provide high color purities, fast fluorescence lifetimes, and large exciton binding energies. This review covers the latest developments in the successful utilization of these flat NCs in different nanophotonic device applications. The synthesis of the advanced heterostructures of flat 2-D NCs (e.g., core-shell, core-crown, and core-crown-shell) has matured very rapidly, and new exciting optical and electronic applications are emerging. Doping of these atomically thin NCs also offers new possibilities for their utilization in different solar light harvesting, magnetic, electronic, and lasing applications. This review also includes the recent advancements in the understanding of their unique optical properties that are of utmost importance for their practical implementation in light-emitting devices and lasers. Finally, we present a future perspective on their successful utilization in different nanophotonic applications.
AB - In the past decade, colloidal quantum wells, also known as 2-D semiconductor nanoplatelets (NPLs), have been added to the colloidal nanocrystal (NC) family. Through the unique control of the thickness with monolayer precision, these novel materials exhibit strong 1-D quantum confinement that offers unique optical properties along with the possibility of fabricating advanced heterostructures, which are not possible with other quantum-confined nanostructures. The 2-D CdX (X = Se, S)-based NPLs provide high color purities, fast fluorescence lifetimes, and large exciton binding energies. This review covers the latest developments in the successful utilization of these flat NCs in different nanophotonic device applications. The synthesis of the advanced heterostructures of flat 2-D NCs (e.g., core-shell, core-crown, and core-crown-shell) has matured very rapidly, and new exciting optical and electronic applications are emerging. Doping of these atomically thin NCs also offers new possibilities for their utilization in different solar light harvesting, magnetic, electronic, and lasing applications. This review also includes the recent advancements in the understanding of their unique optical properties that are of utmost importance for their practical implementation in light-emitting devices and lasers. Finally, we present a future perspective on their successful utilization in different nanophotonic applications.
KW - 2-D materials
KW - Colloidal quantum wells (CQWs)
KW - doping
KW - heterostructures
KW - nanophotonic devices
KW - Semiconductor nanoplatelets (NPLs)
UR - http://www.scopus.com/inward/record.url?scp=85084284712&partnerID=8YFLogxK
U2 - 10.1109/JPROC.2019.2944277
DO - 10.1109/JPROC.2019.2944277
M3 - Article
AN - SCOPUS:85084284712
SN - 0018-9219
VL - 108
SP - 655
EP - 675
JO - Proceedings of the IEEE
JF - Proceedings of the IEEE
IS - 5
ER -