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Title: Microsecond charge separation at heterojunctions between transition metal dichalcogenide monolayers and single-walled carbon nanotubes

Abstract

The use of monolayer transition metal dichalcogenides (TMDCs) for optical-to-electrical or optical-to-chemical energy conversion can be limited by the ultrafast excited state relaxation inherent to neat monolayers. Photoinduced charge separation at nanoscale heterojunctions is an important strategy to extend carrier lifetimes, enabling photodetectors, solar cells, and solar fuel production with these ultrathin materials. We demonstrate TMDC/single-walled carbon nanotube (SWCNT) heterojunctions with exceptionally long, microsecond timescale, charge separation following sub-picosecond interfacial charge transfer. These carrier lifetimes are orders of magnitude longer-lived than in other monolayer TMDC heterojunctions. We further present two unique methodologies for estimating charge-transfer quantum yields in MoS2 that can be broadly applied and refined for other TMDC systems. Our results highlight the promise of TMDC/SWCNT heterojunctions for advanced (photo)catalytic and optoelectronic systems and devices.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1543254
Alternate Identifier(s):
OSTI ID: 1543166
Report Number(s):
NREL/JA-5K00-74336
Journal ID: ISSN 2051-6347; MHAOAL
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Materials Horizons
Additional Journal Information:
Journal Volume: none; Journal Issue: none; Journal ID: ISSN 2051-6347
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; energy conversion; monolayers; charge separation; transition metal dichalcogenides

Citation Formats

Sulas-Kern, Dana B., Zhang, Hanyu, Li, Zhaodong, and Blackburn, Jeffrey L. Microsecond charge separation at heterojunctions between transition metal dichalcogenide monolayers and single-walled carbon nanotubes. United States: N. p., 2019. Web. doi:10.1039/C9MH00954J.
Sulas-Kern, Dana B., Zhang, Hanyu, Li, Zhaodong, & Blackburn, Jeffrey L. Microsecond charge separation at heterojunctions between transition metal dichalcogenide monolayers and single-walled carbon nanotubes. United States. doi:10.1039/C9MH00954J.
Sulas-Kern, Dana B., Zhang, Hanyu, Li, Zhaodong, and Blackburn, Jeffrey L. Tue . "Microsecond charge separation at heterojunctions between transition metal dichalcogenide monolayers and single-walled carbon nanotubes". United States. doi:10.1039/C9MH00954J. https://www.osti.gov/servlets/purl/1543254.
@article{osti_1543254,
title = {Microsecond charge separation at heterojunctions between transition metal dichalcogenide monolayers and single-walled carbon nanotubes},
author = {Sulas-Kern, Dana B. and Zhang, Hanyu and Li, Zhaodong and Blackburn, Jeffrey L.},
abstractNote = {The use of monolayer transition metal dichalcogenides (TMDCs) for optical-to-electrical or optical-to-chemical energy conversion can be limited by the ultrafast excited state relaxation inherent to neat monolayers. Photoinduced charge separation at nanoscale heterojunctions is an important strategy to extend carrier lifetimes, enabling photodetectors, solar cells, and solar fuel production with these ultrathin materials. We demonstrate TMDC/single-walled carbon nanotube (SWCNT) heterojunctions with exceptionally long, microsecond timescale, charge separation following sub-picosecond interfacial charge transfer. These carrier lifetimes are orders of magnitude longer-lived than in other monolayer TMDC heterojunctions. We further present two unique methodologies for estimating charge-transfer quantum yields in MoS2 that can be broadly applied and refined for other TMDC systems. Our results highlight the promise of TMDC/SWCNT heterojunctions for advanced (photo)catalytic and optoelectronic systems and devices.},
doi = {10.1039/C9MH00954J},
journal = {Materials Horizons},
number = none,
volume = none,
place = {United States},
year = {2019},
month = {1}
}

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Cited by: 2 works
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    • DOI: 10.1021/acsami.5b08816

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    • DOI: 10.1021/nl034841q

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    • DOI: 10.1021/nl302015v

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    • Nano Letters, Vol. 13, Issue 8, p. 3664-3670
    • DOI: 10.1021/nl401544y

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    • Mouri, Shinichiro; Miyauchi, Yuhei; Matsuda, Kazunari
    • Nano Letters, Vol. 13, Issue 12
    • DOI: 10.1021/nl403036h

    Investigation of Band-Offsets at Monolayer–Multilayer MoS 2 Junctions by Scanning Photocurrent Microscopy
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    • Howell, Sarah L.; Jariwala, Deep; Wu, Chung-Chiang
    • Nano Letters, Vol. 15, Issue 4
    • DOI: 10.1021/nl504311p

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    • Splendiani, Andrea; Sun, Liang; Zhang, Yuanbo
    • Nano Letters, Vol. 10, Issue 4, p. 1271-1275
    • DOI: 10.1021/nl903868w

    Electrically Driven Tuning of the Dielectric Constant in MoS 2 Layers
    journal, November 2013

    • Santos, Elton J. G.; Kaxiras, Efthimios
    • ACS Nano, Vol. 7, Issue 12
    • DOI: 10.1021/nn403738b

    Strong Photoluminescence Enhancement of MoS 2 through Defect Engineering and Oxygen Bonding
    journal, May 2014

    • Nan, Haiyan; Wang, Zilu; Wang, Wenhui
    • ACS Nano, Vol. 8, Issue 6
    • DOI: 10.1021/nn500532f

    Monolayer MoS2 Heterojunction Solar Cells
    journal, July 2014

    • Tsai, Meng-Lin; Su, Sheng-Han; Chang, Jan-Kai
    • ACS Nano, Vol. 8, Issue 8, p. 8317-8322
    • DOI: 10.1021/nn502776h

    Ultrafast Spectroscopic Signature of Charge Transfer between Single-Walled Carbon Nanotubes and C 60
    journal, July 2014

    • Dowgiallo, Anne-Marie; Mistry, Kevin S.; Johnson, Justin C.
    • ACS Nano, Vol. 8, Issue 8
    • DOI: 10.1021/nn503271k

    2D transition metal dichalcogenides
    journal, June 2017

    • Manzeli, Sajedeh; Ovchinnikov, Dmitry; Pasquier, Diego
    • Nature Reviews Materials, Vol. 2, Issue 8
    • DOI: 10.1038/natrevmats.2017.33

    Large, non-saturating magnetoresistance in WTe2
    journal, September 2014

    • Ali, Mazhar N.; Xiong, Jun; Flynn, Steven
    • Nature, Vol. 514, Issue 7521
    • DOI: 10.1038/nature13763

    Tuning the driving force for exciton dissociation in single-walled carbon nanotube heterojunctions
    journal, April 2016

    • Ihly, Rachelle; Mistry, Kevin S.; Ferguson, Andrew J.
    • Nature Chemistry, Vol. 8, Issue 6
    • DOI: 10.1038/nchem.2496

    Superconductivity emerging from a suppressed large magnetoresistant state in tungsten ditelluride
    journal, July 2015

    • Kang, Defen; Zhou, Yazhou; Yi, Wei
    • Nature Communications, Vol. 6, Issue 1
    • DOI: 10.1038/ncomms8804

    Activating and optimizing MoS2 basal planes for hydrogen evolution through the formation of strained sulphur vacancies
    journal, November 2015

    • Li, Hong; Tsai, Charlie; Koh, Ai Leen
    • Nature Materials, Vol. 15, Issue 1
    • DOI: 10.1038/nmat4465

    Single-layer MoS2 transistors
    journal, January 2011

    • Radisavljevic, B.; Radenovic, A.; Brivio, J.
    • Nature Nanotechnology, Vol. 6, Issue 3, p. 147-150
    • DOI: 10.1038/nnano.2010.279

    Ultrafast charge transfer in atomically thin MoS2/WS2 heterostructures
    journal, August 2014

    • Hong, Xiaoping; Kim, Jonghwan; Shi, Su-Fei
    • Nature Nanotechnology, Vol. 9, Issue 9
    • DOI: 10.1038/nnano.2014.167

    Spin and pseudospins in layered transition metal dichalcogenides
    journal, April 2014

    • Xu, Xiaodong; Yao, Wang; Xiao, Di
    • Nature Physics, Vol. 10, Issue 5
    • DOI: 10.1038/nphys2942

    Approaching the Schottky–Mott limit in van der Waals metal–semiconductor junctions
    journal, May 2018


    Dielectric properties of hexagonal boron nitride and transition metal dichalcogenides: from monolayer to bulk
    journal, March 2018

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