DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultrafast dynamics in van der Waals heterostructures

Abstract

Van der Waals heterostructures are synthetic quantum materials composed of stacks of atomically thin two-dimensional (2D) layers. Because the electrons in the atomically thin 2D layers are exposed to layer-to-layer coupling, the properties of van der Waals heterostructures are defined not only by the constituent monolayers, but also by the interactions between the layers. Many fascinating electrical, optical and magnetic properties have recently been reported in different types of van der Waals heterostructures. In this Review, we focus on unique excited-state dynamics in transition metal dichalcogenide (TMDC) heterostructures. TMDC monolayers are the most widely studied 2D semiconductors, featuring prominent exciton states and accessibility to the valley degree of freedom. Many TMDC heterostructures are characterized by a staggered band alignment. This band alignment has profound effects on the evolution of the excited states in heterostructures, including ultrafast charge transfer between the layers, the formation of interlayer excitons, and the existence of long-lived spin and valley polarization in resident carriers. Here we review recent experimental and theoretical efforts to elucidate electron dynamics in TMDC heterostructures, extending from timescales of femtoseconds to microseconds, and comment on the relevance of these effects for potential applications in optoelectronic, valleytronic and spintronic devices.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [4];  [4];  [2]
  1. Univ. of California, Berkeley, CA (United States)
  2. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Stanford Univ., Stanford, CA (United States)
  4. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1490655
Alternate Identifier(s):
OSTI ID: 1616967
Grant/Contract Number:  
AC02-76SF00515; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Nature Nanotechnology
Additional Journal Information:
Journal Volume: 13; Journal Issue: 11; Journal ID: ISSN 1748-3387
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Jin, Chenhao, Ma, Eric Yue, Karni, Ouri, Regan, Emma C., Wang, Feng, and Heinz, Tony F.. Ultrafast dynamics in van der Waals heterostructures. United States: N. p., 2018. Web. doi:10.1038/s41565-018-0298-5.
Jin, Chenhao, Ma, Eric Yue, Karni, Ouri, Regan, Emma C., Wang, Feng, & Heinz, Tony F.. Ultrafast dynamics in van der Waals heterostructures. United States. https://doi.org/10.1038/s41565-018-0298-5
Jin, Chenhao, Ma, Eric Yue, Karni, Ouri, Regan, Emma C., Wang, Feng, and Heinz, Tony F.. Mon . "Ultrafast dynamics in van der Waals heterostructures". United States. https://doi.org/10.1038/s41565-018-0298-5. https://www.osti.gov/servlets/purl/1490655.
@article{osti_1490655,
title = {Ultrafast dynamics in van der Waals heterostructures},
author = {Jin, Chenhao and Ma, Eric Yue and Karni, Ouri and Regan, Emma C. and Wang, Feng and Heinz, Tony F.},
abstractNote = {Van der Waals heterostructures are synthetic quantum materials composed of stacks of atomically thin two-dimensional (2D) layers. Because the electrons in the atomically thin 2D layers are exposed to layer-to-layer coupling, the properties of van der Waals heterostructures are defined not only by the constituent monolayers, but also by the interactions between the layers. Many fascinating electrical, optical and magnetic properties have recently been reported in different types of van der Waals heterostructures. In this Review, we focus on unique excited-state dynamics in transition metal dichalcogenide (TMDC) heterostructures. TMDC monolayers are the most widely studied 2D semiconductors, featuring prominent exciton states and accessibility to the valley degree of freedom. Many TMDC heterostructures are characterized by a staggered band alignment. This band alignment has profound effects on the evolution of the excited states in heterostructures, including ultrafast charge transfer between the layers, the formation of interlayer excitons, and the existence of long-lived spin and valley polarization in resident carriers. Here we review recent experimental and theoretical efforts to elucidate electron dynamics in TMDC heterostructures, extending from timescales of femtoseconds to microseconds, and comment on the relevance of these effects for potential applications in optoelectronic, valleytronic and spintronic devices.},
doi = {10.1038/s41565-018-0298-5},
journal = {Nature Nanotechnology},
number = 11,
volume = 13,
place = {United States},
year = {Mon Nov 05 00:00:00 EST 2018},
month = {Mon Nov 05 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 292 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Many-Body Effects in Valleytronics: Direct Measurement of Valley Lifetimes in Single-Layer MoS 2
journal, December 2013

  • Mai, Cong; Barrette, Andrew; Yu, Yifei
  • Nano Letters, Vol. 14, Issue 1
  • DOI: 10.1021/nl403742j

Probing charge transfer excitons in a MoSe 2 –WS 2 van der Waals heterostructure
journal, January 2015

  • Ceballos, Frank; Bellus, Matthew Z.; Chiu, Hsin-Ying
  • Nanoscale, Vol. 7, Issue 41
  • DOI: 10.1039/C5NR04723D

Band alignment of two-dimensional semiconductors for designing heterostructures with momentum space matching
journal, July 2016


Ultrafast Charge Separation and Indirect Exciton Formation in a MoS 2 –MoSe 2 van der Waals Heterostructure
journal, November 2014

  • Ceballos, Frank; Bellus, Matthew Z.; Chiu, Hsin-Ying
  • ACS Nano, Vol. 8, Issue 12
  • DOI: 10.1021/nn505736z

Electronic Structural Moiré Pattern Effects on MoS 2 /MoSe 2 2D Heterostructures
journal, October 2013

  • Kang, Jun; Li, Jingbo; Li, Shu-Shen
  • Nano Letters, Vol. 13, Issue 11
  • DOI: 10.1021/nl4030648

Highly Efficient and Anomalous Charge Transfer in van der Waals Trilayer Semiconductors
journal, February 2017


Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
journal, April 2014

  • Fang, H.; Battaglia, C.; Carraro, C.
  • Proceedings of the National Academy of Sciences, Vol. 111, Issue 17
  • DOI: 10.1073/pnas.1405435111

On Optical Dipole Moment and Radiative Recombination Lifetime of Excitons in WSe 2
journal, September 2016

  • Jin, Chenhao; Kim, Jonghwan; Wu, Kedi
  • Advanced Functional Materials, Vol. 27, Issue 19
  • DOI: 10.1002/adfm.201601741

Ultrafast formation of interlayer hot excitons in atomically thin MoS2/WS2 heterostructures
journal, August 2016

  • Chen, Hailong; Wen, Xiewen; Zhang, Jing
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms12512

Valley-polarized exciton dynamics in a 2D semiconductor heterostructure
journal, February 2016


Direct measurement of exciton valley coherence in monolayer WSe2
journal, February 2016

  • Hao, Kai; Moody, Galan; Wu, Fengcheng
  • Nature Physics, Vol. 12, Issue 7
  • DOI: 10.1038/nphys3674

Electronic structure of two-dimensional transition metal dichalcogenide bilayers from ab initio theory
journal, May 2014


Intervalley dark trion states with spin lifetimes of 150 ns in WSe 2
journal, June 2017


Determination of band alignment in the single-layer MoS2/WSe2 heterojunction
journal, July 2015

  • Chiu, Ming-Hui; Zhang, Chendong; Shiu, Hung-Wei
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8666

Electronic structures and optical properties of realistic transition metal dichalcogenide heterostructures from first principles
journal, August 2013


Probing excitonic dark states in single-layer tungsten disulphide
journal, August 2014

  • Ye, Ziliang; Cao, Ting; O’Brien, Kevin
  • Nature, Vol. 513, Issue 7517
  • DOI: 10.1038/nature13734

Quantum Coherence Facilitates Efficient Charge Separation at a MoS 2 /MoSe 2 van der Waals Junction
journal, February 2016


Anomalous Light Cones and Valley Optical Selection Rules of Interlayer Excitons in Twisted Heterobilayers
journal, October 2015


Atomically Thin MoS2 A New Direct-Gap Semiconductor
journal, September 2010


Phonon-Assisted Ultrafast Charge Transfer at van der Waals Heterostructure Interface
journal, September 2017


Long-lived nanosecond spin relaxation and spin coherence of electrons in monolayer MoS2 and WS2
journal, August 2015

  • Yang, Luyi; Sinitsyn, Nikolai A.; Chen, Weibing
  • Nature Physics, Vol. 11, Issue 10
  • DOI: 10.1038/nphys3419

Type-I van der Waals heterostructure formed by MoS 2 and ReS 2 monolayers
journal, January 2017

  • Bellus, Matthew Z.; Li, Ming; Lane, Samuel D.
  • Nanoscale Horizons, Vol. 2, Issue 1
  • DOI: 10.1039/C6NH00144K

Ultrafast Interlayer Electron Transfer in Incommensurate Transition Metal Dichalcogenide Homobilayers
journal, October 2017


Near-unity photoluminescence quantum yield in MoS2
journal, November 2015


Band alignment of two-dimensional transition metal dichalcogenides: Application in tunnel field effect transistors
journal, July 2013

  • Gong, Cheng; Zhang, Hengji; Wang, Weihua
  • Applied Physics Letters, Vol. 103, Issue 5
  • DOI: 10.1063/1.4817409

Moiré excitons: From programmable quantum emitter arrays to spin-orbit–coupled artificial lattices
journal, November 2017


Experimental Evidence for Dark Excitons in Monolayer WSe 2
journal, December 2015


Exciton radiative lifetime in transition metal dichalcogenide monolayers
journal, May 2016


Optically initialized robust valley-polarized holes in monolayer WSe2
journal, November 2015

  • Hsu, Wei-Ting; Chen, Yen-Lun; Chen, Chang-Hsiao
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms9963

Charge Separation and Recombination in Two-Dimensional MoS 2 /WS 2 : Time-Domain ab Initio Modeling
journal, November 2016


Momentum-space indirect interlayer excitons in transition-metal dichalcogenide van der Waals heterostructures
journal, April 2018


Theory of optical absorption by interlayer excitons in transition metal dichalcogenide heterobilayers
journal, January 2018


Hofstadter’s butterfly and the fractal quantum Hall effect in moiré superlattices
journal, May 2013


Band Alignment in MoS 2 /WS 2 Transition Metal Dichalcogenide Heterostructures Probed by Scanning Tunneling Microscopy and Spectroscopy
journal, July 2016


Ultrafast charge transfer between MoTe 2 and MoS 2 monolayers
journal, December 2016


Cloning of Dirac fermions in graphene superlattices
journal, May 2013

  • Ponomarenko, L. A.; Gorbachev, R. V.; Yu, G. L.
  • Nature, Vol. 497, Issue 7451
  • DOI: 10.1038/nature12187

Interlayer Coupling in Twisted WSe 2 /WS 2 Bilayer Heterostructures Revealed by Optical Spectroscopy
journal, June 2016


Trion valley coherence in monolayer semiconductors
journal, May 2017


Negative circular polarization emissions from WSe2/MoSe2 commensurate heterobilayers
journal, April 2018


Exciton valley dynamics probed by Kerr rotation in WSe 2 monolayers
journal, October 2014


Two-dimensional electron gas at a semiconductor-semiconductor interface
journal, March 1979


Topological mosaics in moiré superlattices of van der Waals heterobilayers
journal, November 2016

  • Tong, Qingjun; Yu, Hongyi; Zhu, Qizhong
  • Nature Physics, Vol. 13, Issue 4
  • DOI: 10.1038/nphys3968

Observation of biexcitons in monolayer WSe2
journal, May 2015

  • You, Yumeng; Zhang, Xiao-Xiao; Berkelbach, Timothy C.
  • Nature Physics, Vol. 11, Issue 6
  • DOI: 10.1038/nphys3324

Observation of ultralong valley lifetime in WSe 2 /MoS 2 heterostructures
journal, July 2017


Interlayer-State-Coupling Dependent Ultrafast Charge Transfer in MoS 2 /WS 2 Bilayers
journal, April 2017


Interlayer orientation-dependent light absorption and emission in monolayer semiconductor stacks
journal, June 2015

  • Heo, Hoseok; Sung, Ji Ho; Cha, Soonyoung
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms8372

Novel hetero-layered materials with tunable direct band gaps by sandwiching different metal disulfides and diselenides
journal, March 2013

  • Terrones, Humberto; López-Urías, Florentino; Terrones, Mauricio
  • Scientific Reports, Vol. 3, Issue 1
  • DOI: 10.1038/srep01549

Coupled Spin and Valley Physics in Monolayers of MoS 2 and Other Group-VI Dichalcogenides
journal, May 2012


Exciton fine structure and spin decoherence in monolayers of transition metal dichalcogenides
journal, May 2014


Carrier and Polarization Dynamics in Monolayer MoS 2
journal, January 2014


Unconventional superconductivity in magic-angle graphene superlattices
journal, March 2018


Magnetic brightening and control of dark excitons in monolayer WSe2
journal, June 2017

  • Zhang, Xiao-Xiao; Cao, Ting; Lu, Zhengguang
  • Nature Nanotechnology, Vol. 12, Issue 9
  • DOI: 10.1038/nnano.2017.105

Emerging Photoluminescence in Monolayer MoS2
journal, April 2010

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

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

The role of collective motion in the ultrafast charge transfer in van der Waals heterostructures
journal, May 2016

  • Wang, Han; Bang, Junhyeok; Sun, Yiyang
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms11504

Observation of Excitonic Rydberg States in Monolayer MoS 2 and WS 2 by Photoluminescence Excitation Spectroscopy
journal, April 2015

  • Hill, Heather M.; Rigosi, Albert F.; Roquelet, Cyrielle
  • Nano Letters, Vol. 15, Issue 5
  • DOI: 10.1021/nl504868p

Coulomb-bound four- and five-particle intervalley states in an atomically-thin semiconductor
journal, September 2018


Trion fine structure and coupled spin–valley dynamics in monolayer tungsten disulfide
journal, September 2016

  • Plechinger, Gerd; Nagler, Philipp; Arora, Ashish
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms12715

Imaging of pure spin-valley diffusion current in WS 2 -WSe 2 heterostructures
journal, May 2018


Intrinsic homogeneous linewidth and broadening mechanisms of excitons in monolayer transition metal dichalcogenides
journal, September 2015

  • Moody, Galan; Kavir Dass, Chandriker; Hao, Kai
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms9315

Observation of fractional Chern insulators in a van der Waals heterostructure
journal, March 2018


Band alignment of two-dimensional lateral heterostructures
journal, December 2016


Low-temperature photocarrier dynamics in monolayer MoS 2
journal, September 2011

  • Korn, T.; Heydrich, S.; Hirmer, M.
  • Applied Physics Letters, Vol. 99, Issue 10
  • DOI: 10.1063/1.3636402

Long-Lived Hole Spin/Valley Polarization Probed by Kerr Rotation in Monolayer WSe 2
journal, July 2016


Valley Carrier Dynamics in Monolayer Molybdenum Disulfide from Helicity-Resolved Ultrafast Pump–Probe Spectroscopy
journal, November 2013

  • Wang, Qinsheng; Ge, Shaofeng; Li, Xiao
  • ACS Nano, Vol. 7, Issue 12
  • DOI: 10.1021/nn405419h

Interfacial Charge Transfer Circumventing Momentum Mismatch at Two-Dimensional van der Waals Heterojunctions
journal, May 2017


Microsecond dark-exciton valley polarization memory in two-dimensional heterostructures
journal, February 2018


Valley-selective circular dichroism of monolayer molybdenum disulphide
journal, January 2012

  • Cao, Ting; Wang, Gang; Han, Wenpeng
  • Nature Communications, Vol. 3, Issue 1
  • DOI: 10.1038/ncomms1882

Evidence for Fast Interlayer Energy Transfer in MoSe 2 /WS 2 Heterostructures
journal, June 2016


Dirac cones and Dirac saddle points of bright excitons in monolayer transition metal dichalcogenides
journal, May 2014

  • Yu, Hongyi; Liu, Gui-Bin; Gong, Pu
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4876

Double Indirect Interlayer Exciton in a MoSe 2 /WSe 2 van der Waals Heterostructure
journal, April 2018

  • Hanbicki, Aubrey T.; Chuang, Hsun-Jen; Rosenberger, Matthew R.
  • ACS Nano, Vol. 12, Issue 5
  • DOI: 10.1021/acsnano.8b01369

Exciton spin dynamics in quantum wells
journal, June 1993

  • Maialle, M. Z.; de Andrada e. Silva, E. A.; Sham, L. J.
  • Physical Review B, Vol. 47, Issue 23
  • DOI: 10.1103/PhysRevB.47.15776

Atomically thin p–n junctions with van der Waals heterointerfaces
journal, August 2014

  • Lee, Chul-Ho; Lee, Gwan-Hyoung; van der Zande, Arend M.
  • Nature Nanotechnology, Vol. 9, Issue 9
  • DOI: 10.1038/nnano.2014.150

Charge Transfer Excitons at van der Waals Interfaces
journal, June 2015

  • Zhu, Xiaoyang; Monahan, Nicholas R.; Gong, Zizhou
  • Journal of the American Chemical Society, Vol. 137, Issue 26
  • DOI: 10.1021/jacs.5b03141

Brightened spin-triplet interlayer excitons and optical selection rules in van der Waals heterobilayers
journal, May 2018


Intervalley scattering by acoustic phonons in two-dimensional MoS2 revealed by double-resonance Raman spectroscopy
journal, March 2017

  • Carvalho, Bruno R.; Wang, Yuanxi; Mignuzzi, Sandro
  • Nature Communications, Vol. 8, Issue 1
  • DOI: 10.1038/ncomms14670

Tightly Bound Excitons in Monolayer WSe 2
journal, July 2014


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

Correlated insulator behaviour at half-filling in magic-angle graphene superlattices
journal, March 2018


Massive Dirac Fermions and Hofstadter Butterfly in a van der Waals Heterostructure
journal, May 2013


Robust Stacking-Independent Ultrafast Charge Transfer in MoS 2 /WS 2 Bilayers
journal, October 2016


Interlayer exciton dynamics in a dichalcogenide monolayer heterostructure
journal, June 2017


Long-Lived Direct and Indirect Interlayer Excitons in van der Waals Heterostructures
journal, August 2017


Gate-Controlled Spin-Valley Locking of Resident Carriers in WSe 2 Monolayers
journal, September 2017


Correlated fluorescence blinking in two-dimensional semiconductor heterostructures
journal, December 2016

  • Xu, Weigao; Liu, Weiwei; Schmidt, Jan F.
  • Nature, Vol. 541, Issue 7635
  • DOI: 10.1038/nature20601

Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS 2
journal, August 2014


Control of valley polarization in monolayer MoS2 by optical helicity
journal, June 2012


Valley polarization in MoS2 monolayers by optical pumping
journal, June 2012

  • Zeng, Hualing; Dai, Junfeng; Yao, Wang
  • Nature Nanotechnology, Vol. 7, Issue 8
  • DOI: 10.1038/nnano.2012.95

Determination of band offsets, hybridization, and exciton binding in 2D semiconductor heterostructures
journal, February 2017

  • Wilson, Neil R.; Nguyen, Paul V.; Seyler, Kyle
  • Science Advances, Vol. 3, Issue 2
  • DOI: 10.1126/sciadv.1601832

Observation of long-lived interlayer excitons in monolayer MoSe2–WSe2 heterostructures
journal, February 2015

  • Rivera, Pasqual; Schaibley, John R.; Jones, Aaron M.
  • Nature Communications, Vol. 6, Issue 1
  • DOI: 10.1038/ncomms7242

Two-dimensional electron gas at a semiconductor-semiconductor interface
journal, December 1993


Momentum-space indirect interlayer excitons in transition-metal dichalcogenide van der Waals heterostructures
text, January 2018

  • Kunstmann, Jens; Mooshammer, Fabian; Nagler, Philipp
  • Universität Regensburg
  • DOI: 10.5283/epub.37985

Low-temperature photocarrier dynamics in monolayer MoS2
text, January 2011

  • Korn, Tobias; Heydrich, Stefanie; Hirmer, Michael
  • Universität Regensburg
  • DOI: 10.5283/epub.26514

Cloning of Dirac fermions in graphene superlattices
text, January 2012


Long-lived nanosecond spin relaxation and spin coherence of electrons in monolayer MoS_2 and WS_2
text, January 2015


Exciton Radiative Lifetime in Transition Metal Dichalcogenide Monolayers
text, January 2016


Interlayer exciton dynamics in a dichalcogenide monolayer heterostructure
text, January 2017


Long-lived direct and indirect interlayer excitons in van der Waals heterostructures
text, January 2017


Observation of fractional Chern insulators in a van der Waals heterostructure
text, January 2017


Works referencing / citing this record:

Theory and Ab Initio Calculation of Optically Excited States—Recent Advances in 2D Materials
journal, December 2019


2D Layered Materials: Synthesis, Nonlinear Optical Properties, and Device Applications
journal, November 2019

  • Guo, Bo; Xiao, Quan‐lan; Wang, Shi‐hao
  • Laser & Photonics Reviews, Vol. 13, Issue 12
  • DOI: 10.1002/lpor.201800327

Multiphonon Raman Scattering in Transition Metal Dichalcogenide Double Layers
journal, January 2020

  • Wang, Zi-Wu; Deng, Jia-Pei; Xiao, Yao
  • physica status solidi (RRL) – Rapid Research Letters, Vol. 14, Issue 3
  • DOI: 10.1002/pssr.201900517

2D Metal Chalcogenides for IR Photodetection
journal, May 2019


Confined Pyrolysis of ZIF‐8 Polyhedrons Wrapped with Graphene Oxide Nanosheets to Prepare 3D Porous Carbon Heterostructures
journal, May 2019


Photoexcited charge carrier behaviors in solar energy conversion systems from theoretical simulations
journal, August 2019

  • Wei, Wei; Huang, Baibiao; Dai, Ying
  • WIREs Computational Molecular Science, Vol. 10, Issue 3
  • DOI: 10.1002/wcms.1441

Valleytronics in transition metal dichalcogenides materials
journal, August 2019


Twist Angle mapping in layered WS2 by Polarization-Resolved Second Harmonic Generation
journal, October 2019

  • Psilodimitrakopoulos, Sotiris; Mouchliadis, Leonidas; Paradisanos, Ioannis
  • Scientific Reports, Vol. 9, Issue 1
  • DOI: 10.1038/s41598-019-50534-0

High-performance ultra-violet phototransistors based on CVT-grown high quality SnS 2 flakes
journal, January 2019

  • Ying, Haoting; Li, Xin; Wu, Yutong
  • Nanoscale Advances, Vol. 1, Issue 10
  • DOI: 10.1039/c9na00471h

Ultrafast free carrier dynamics in black phosphorus–molybdenum disulfide (BP/MoS 2 ) heterostructures
journal, January 2019

  • Nie, Zhonghui; Wang, Yuhan; Li, Ziling
  • Nanoscale Horizons, Vol. 4, Issue 5
  • DOI: 10.1039/c9nh00045c

MoS 2 nanoflowers encapsulated into carbon nanofibers containing amorphous SnO 2 as an anode for lithium-ion batteries
journal, January 2019

  • Chen, Huanhui; He, Jiao; Ke, Guanxia
  • Nanoscale, Vol. 11, Issue 35
  • DOI: 10.1039/c9nr05631a

In situ epitaxial growth of Ag 3 PO 4 quantum dots on hematite nanotubes for high photocatalytic activities
journal, January 2019

  • Duan, Junyuan; Xu, Leilei; Liu, Youwen
  • Inorganic Chemistry Frontiers, Vol. 6, Issue 10
  • DOI: 10.1039/c9qi00744j

Multiple roles of a heterointerface in two-dimensional van der Waals heterostructures: insights into energy-related applications
journal, January 2019

  • Zhu, Yuanzhi; Peng, Wenchao; Li, Yang
  • Journal of Materials Chemistry A, Vol. 7, Issue 41
  • DOI: 10.1039/c9ta06395a

Strongly coupled van der Waals heterostructures for high-performance infrared phototransistor
journal, March 2019

  • Li, Ningning; Wen, Yao; Cheng, Ruiqing
  • Applied Physics Letters, Vol. 114, Issue 10
  • DOI: 10.1063/1.5083685

Supercontinuum second harmonic generation spectroscopy of atomically thin semiconductors
journal, August 2019

  • Stiehm, Torsten; Schneider, Robert; Kern, Johannes
  • Review of Scientific Instruments, Vol. 90, Issue 8
  • DOI: 10.1063/1.5100593

Robust circular polarization of indirect Q-K transitions in bilayer 3 R W S 2
journal, October 2019


Van der Waals Heterostructures for High‐Performance Device Applications: Challenges and Opportunities
journal, October 2019


Ultrafast carrier dynamics in two-dimensional transition metal dichalcogenides
journal, January 2019

  • Li, Yuanzheng; Shi, Jia; Mi, Yang
  • Journal of Materials Chemistry C, Vol. 7, Issue 15
  • DOI: 10.1039/c8tc06343e

Diabatic Hamiltonian construction in van der Waals heterostructure complexes
journal, January 2019

  • Xie, Yu; Sun, Huijuan; Zheng, Qijing
  • Journal of Materials Chemistry A, Vol. 7, Issue 48
  • DOI: 10.1039/c9ta09434b

Multiple parameter dynamic photoresponse microscopy for data-intensive optoelectronic measurements of van der Waals heterostructures
journal, February 2019

  • Arp, Trevor B.; Gabor, Nathaniel M.
  • Review of Scientific Instruments, Vol. 90, Issue 2
  • DOI: 10.1063/1.5085007

Valley-Layer Coupling: A New Design Principle for Valleytronics
journal, January 2020


Twist Angle mapping in layered WS2 by Polarization-Resolved Second Harmonic Generation
preprint, January 2019


Diabatic Hamiltonian Construction in van der Waals heterostructure complexes
preprint, January 2019


Direct-Current Generator Based on Dynamic PN Junctions with the Designed Voltage Output
journal, December 2019


Ultrafast 27 GHz cutoff frequency in vertical WSe2 Schottky diodes with extremely low contact resistance
journal, March 2020


Strong One-Dimensional Characteristics of Hole-Carriers in ReS2 and ReSe2
journal, February 2019