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Mapping nanoscale energy transport in 2D transition metal dichalcogenides with stroboscopic scattering microscopy

Weaver, Hannah and Went, Cora M. and Wong, Joeson and Utterback, James and Atwater, Harry A. and Ginsberg, Naomi (2020) Mapping nanoscale energy transport in 2D transition metal dichalcogenides with stroboscopic scattering microscopy. In: Physical Chemistry of Semiconductor Materials and Interfaces IX. Proceedings of SPIE. No.11464. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1146405. ISBN 9781510637344. https://resolver.caltech.edu/CaltechAUTHORS:20200826-153504361

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Abstract

Characterizing the intrinsic properties of low-dimensional transition metal dichalcogenides (TMDCs) is necessary for explaining how their novel properties arise and are modified by their local environment. Excitations in few-layer TMDCs and heterostructures are difficult to probe directly because of their low photoluminescence quantum yield. With time-resolved elastic scattering microscopy, we spatiotemporally resolve both in-plane and out-of-plane nanoscale transport in several TMDC species and architectures as a function of layer thickness and pump-induced carrier density. We directly observe interlayer exciton transport in TMDC heterostructures and find that these species diffuse an order of magnitude farther and faster than excitations do in their isolated counterparts.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.2568123DOIArticle
ORCID:
AuthorORCID
Weaver, Hannah0000-0002-1374-4231
Went, Cora M.0000-0001-7737-3348
Wong, Joeson0000-0002-6304-7602
Utterback, James0000-0002-2926-841X
Atwater, Harry A.0000-0001-9435-0201
Ginsberg, Naomi0000-0002-5660-3586
Additional Information:© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE).
Series Name:Proceedings of SPIE
Issue or Number:11464
Record Number:CaltechAUTHORS:20200826-153504361
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200826-153504361
Official Citation:Hannah Weaver, Cora M. Went, Joeson Wong, James Utterback, Harry A. Atwater, and Naomi S. Ginsberg "Mapping nanoscale energy transport in 2D transition metal dichalcogenides with stroboscopic scattering microscopy", Proc. SPIE 11464, Physical Chemistry of Semiconductor Materials and Interfaces IX, 1146405 (20 August 2020); https://doi.org/10.1117/12.2568123
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105124
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:26 Aug 2020 23:40
Last Modified:26 Aug 2020 23:40

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