Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets
Nonlinear optical processes are crucial for emerging applications including multiphoton-excited fluorescence microscopy and optical power limiting. Therefore, searching for materials of high multiphoton absorption cross sections is essential for the development of these techniques. We present synthe...
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sg-ntu-dr.10356-1550512023-02-28T19:57:00Z Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets Nawrot, Katarzyna C. Sharma, Manoj Cichy, Bartłomiej Sharma, Ashma Delikanl,i Savas Samoć, Marek Demir, Hilmi Volkan Nyk, Marcin School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences School of Materials Science and Engineering LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays The Photonics Institute Science::Physics Quantum Nanoplatelets Quantum Dots Nonlinear optical processes are crucial for emerging applications including multiphoton-excited fluorescence microscopy and optical power limiting. Therefore, searching for materials of high multiphoton absorption cross sections is essential for the development of these techniques. We present synthesis of 4.5 monolayer CdSe nanoplatelets (NPLs) doped with silver and copper ions along with the evaluation of their two-photon absorption (TPA) and three-photon absorption (3PA) cross sections. Doping significantly increases the TPA cross section of each NPL sample, which reaches up to 1.33 × 107 GM for the most absorbing copper-doped ones. We also detected 1-2 orders of magnitude-enhanced 3PA cross sections for the doped NPLs in comparison with their undoped counterparts. As TPA and 3PA peaks appear, in the first and the second biological transmission windows, respectively, doped NPLs are promising candidates for multiphoton fluorescence microscopy as bioimaging agents. Moreover, the strong nonlinear response suggests application as active optoelectronic materials in optical sensors. Ministry of Education (MOE) National Research Foundation (NRF) Published version This work has received financial support from the National Science Centre, Poland, under grant no. 2018/29/B/ST4/ 02172, the National Research Foundation of Singapore under program NRF-NRFI2016-08, and the Singapore Ministry of Education under grant MOE-RG62/20. 2022-02-03T07:44:36Z 2022-02-03T07:44:36Z 2022 Journal Article Nawrot, K. C., Sharma, M., Cichy, B., Sharma, A., Delikanl, I. S., Samoć, M., Demir, H. V. & Nyk, M. (2022). Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets. ACS Photonics, 9(1), 256-267. https://dx.doi.org/10.1021/acsphotonics.1c01456 2330-4022 https://hdl.handle.net/10356/155051 10.1021/acsphotonics.1c01456 2-s2.0-85122748904 1 9 256 267 en NRFNRFI2016-08 MOE-RG62/20 ACS Photonics © 2022 The Authors. Published by American Chemical Society. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License. application/pdf |
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Science::Physics Quantum Nanoplatelets Quantum Dots Nawrot, Katarzyna C. Sharma, Manoj Cichy, Bartłomiej Sharma, Ashma Delikanl,i Savas Samoć, Marek Demir, Hilmi Volkan Nyk, Marcin Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
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Nonlinear optical processes are crucial for emerging applications including multiphoton-excited fluorescence microscopy and optical power limiting. Therefore, searching for materials of high multiphoton absorption cross sections is essential for the development of these techniques. We present synthesis of 4.5 monolayer CdSe nanoplatelets (NPLs) doped with silver and copper ions along with the evaluation of their two-photon absorption (TPA) and three-photon absorption (3PA) cross sections. Doping significantly increases the TPA cross section of each NPL sample, which reaches up to 1.33 × 107 GM for the most absorbing copper-doped ones. We also detected 1-2 orders of magnitude-enhanced 3PA cross sections for the doped NPLs in comparison with their undoped counterparts. As TPA and 3PA peaks appear, in the first and the second biological transmission windows, respectively, doped NPLs are promising candidates for multiphoton fluorescence microscopy as bioimaging agents. Moreover, the strong nonlinear response suggests application as active optoelectronic materials in optical sensors. |
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School of Electrical and Electronic Engineering |
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School of Electrical and Electronic Engineering Nawrot, Katarzyna C. Sharma, Manoj Cichy, Bartłomiej Sharma, Ashma Delikanl,i Savas Samoć, Marek Demir, Hilmi Volkan Nyk, Marcin |
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Article |
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Nawrot, Katarzyna C. Sharma, Manoj Cichy, Bartłomiej Sharma, Ashma Delikanl,i Savas Samoć, Marek Demir, Hilmi Volkan Nyk, Marcin |
author_sort |
Nawrot, Katarzyna C. |
title |
Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
title_short |
Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
title_full |
Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
title_fullStr |
Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
title_full_unstemmed |
Spectrally resolved nonlinear optical properties of doped versus undoped quasi-2D semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal CdSe nanoplatelets |
title_sort |
spectrally resolved nonlinear optical properties of doped versus undoped quasi-2d semiconductor nanocrystals : copper and silver doping provokes strong nonlinearity in colloidal cdse nanoplatelets |
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2022 |
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https://hdl.handle.net/10356/155051 |
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1759854510674542592 |