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

Title: Coulomb engineering of the bandgap and excitons in two-dimensional materials

Abstract

Here, the ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.

Authors:
 [1];  [2];  [3];  [3];  [4];  [4];  [5];  [6];  [6];  [6]; ORCiD logo [3];  [3];  [3];  [1];  [3];  [7]
  1. Columbia Univ., New York, NY (United States); Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Columbia Univ., New York, NY (United States); Univ. Federal do Ceara, Fortaleza (Brazil)
  3. Columbia Univ., New York, NY (United States)
  4. Columbia Univ., New York, NY (United States); Stanford Univ., Stanford, CA (United States)
  5. Univ. of Chicago, Chicago, IL (United States)
  6. Univ. of Regensburg, Regensburg (Germany)
  7. Columbia Univ., New York, NY (United States); Univ. of Regensburg, Regensburg (Germany)
Publication Date:
Research Org.:
SLAC National Accelerator Lab. (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1360901
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; electronic properties and materials; two-dimensional materials

Citation Formats

Raja, Archana, Chaves, Andrey, Yu, Jaeeun, Arefe, Ghidewon, Hill, Heather M., Rigosi, Albert F., Berkelbach, Timothy C., Nagler, Philipp, Schuller, Christian, Korn, Tobias, Nuckolls, Colin, Hone, James, Brus, Louis E., Heinz, Tony F., Reichman, David R., and Chernikov, Alexey. Coulomb engineering of the bandgap and excitons in two-dimensional materials. United States: N. p., 2017. Web. doi:10.1038/ncomms15251.
Raja, Archana, Chaves, Andrey, Yu, Jaeeun, Arefe, Ghidewon, Hill, Heather M., Rigosi, Albert F., Berkelbach, Timothy C., Nagler, Philipp, Schuller, Christian, Korn, Tobias, Nuckolls, Colin, Hone, James, Brus, Louis E., Heinz, Tony F., Reichman, David R., & Chernikov, Alexey. Coulomb engineering of the bandgap and excitons in two-dimensional materials. United States. https://doi.org/10.1038/ncomms15251
Raja, Archana, Chaves, Andrey, Yu, Jaeeun, Arefe, Ghidewon, Hill, Heather M., Rigosi, Albert F., Berkelbach, Timothy C., Nagler, Philipp, Schuller, Christian, Korn, Tobias, Nuckolls, Colin, Hone, James, Brus, Louis E., Heinz, Tony F., Reichman, David R., and Chernikov, Alexey. Thu . "Coulomb engineering of the bandgap and excitons in two-dimensional materials". United States. https://doi.org/10.1038/ncomms15251. https://www.osti.gov/servlets/purl/1360901.
@article{osti_1360901,
title = {Coulomb engineering of the bandgap and excitons in two-dimensional materials},
author = {Raja, Archana and Chaves, Andrey and Yu, Jaeeun and Arefe, Ghidewon and Hill, Heather M. and Rigosi, Albert F. and Berkelbach, Timothy C. and Nagler, Philipp and Schuller, Christian and Korn, Tobias and Nuckolls, Colin and Hone, James and Brus, Louis E. and Heinz, Tony F. and Reichman, David R. and Chernikov, Alexey},
abstractNote = {Here, the ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the unusual strength of the Coulomb interaction in these materials and its environmental sensitivity. Here, we show that by engineering the surrounding dielectric environment, one can tune the electronic bandgap and the exciton binding energy in monolayers of WS2 and WSe2 by hundreds of meV. We exploit this behaviour to present an in-plane dielectric heterostructure with a spatially dependent bandgap, as an initial step towards the creation of diverse lateral junctions with nanoscale resolution.},
doi = {10.1038/ncomms15251},
journal = {Nature Communications},
number = ,
volume = 8,
place = {United States},
year = {Thu May 04 00:00:00 EDT 2017},
month = {Thu May 04 00:00:00 EDT 2017}
}

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

Citation Metrics:
Cited by: 481 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Model dielectric function for 2D semiconductors including substrate screening
journal, January 2017

  • Trolle, Mads L.; Pedersen, Thomas G.; Véniard, Valerie
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep39844

Dielectric Screening of Excitons and Trions in Single-Layer MoS 2
journal, September 2014

  • Lin, Yuxuan; Ling, Xi; Yu, Lili
  • Nano Letters, Vol. 14, Issue 10
  • DOI: 10.1021/nl501988y

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

Nonvolatile Memory Cells Based on MoS 2 /Graphene Heterostructures
journal, March 2013

  • Bertolazzi, Simone; Krasnozhon, Daria; Kis, Andras
  • ACS Nano, Vol. 7, Issue 4
  • DOI: 10.1021/nn3059136

Dielectric Genome of van der Waals Heterostructures
journal, June 2015


Graphene–MoS2 hybrid structures for multifunctional photoresponsive memory devices
journal, October 2013

  • Roy, Kallol; Padmanabhan, Medini; Goswami, Srijit
  • Nature Nanotechnology, Vol. 8, Issue 11
  • DOI: 10.1038/nnano.2013.206

Identification of excitons, trions and biexcitons in single-layer WS 2 : Identification of excitons, trions and biexcitons in single-layer WS
journal, July 2015

  • Plechinger, Gerd; Nagler, Philipp; Kraus, Julia
  • physica status solidi (RRL) - Rapid Research Letters, Vol. 9, Issue 8
  • DOI: 10.1002/pssr.201510224

Dielectric screening in two-dimensional insulators: Implications for excitonic and impurity states in graphane
journal, August 2011


Measurement of the Optical Conductivity of Graphene
journal, November 2008


Direct Imaging of Band Profile in Single Layer MoS 2 on Graphite: Quasiparticle Energy Gap, Metallic Edge States, and Edge Band Bending
journal, April 2014

  • Zhang, Chendong; Johnson, Amber; Hsu, Chang-Lung
  • Nano Letters, Vol. 14, Issue 5
  • DOI: 10.1021/nl501133c

Band-Gap Engineering: From Physics and Materials to New Semiconductor Devices
journal, January 1987


Optical Spectrum of MoS 2 : Many-Body Effects and Diversity of Exciton States
journal, November 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

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


Deterministic transfer of two-dimensional materials by all-dry viscoelastic stamping
journal, April 2014


Exciton diamagnetic shifts and valley Zeeman effects in monolayer WS2 and MoS2 to 65 Tesla
journal, February 2016

  • Stier, Andreas V.; McCreary, Kathleen M.; Jonker, Berend T.
  • Nature Communications, Vol. 7, Issue 1
  • DOI: 10.1038/ncomms10643

Large excitonic effects in monolayers of molybdenum and tungsten dichalcogenides
journal, September 2012


Seeing Many-Body Effects in Single- and Few-Layer Graphene: Observation of Two-Dimensional Saddle-Point Excitons
journal, January 2011


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

Giant bandgap renormalization and excitonic effects in a monolayer transition metal dichalcogenide semiconductor
journal, August 2014

  • Ugeda, Miguel M.; Bradley, Aaron J.; Shi, Su-Fei
  • Nature Materials, Vol. 13, Issue 12
  • DOI: 10.1038/nmat4061

Lateral heterojunctions within monolayer MoSe2–WSe2 semiconductors
journal, August 2014

  • Huang, Chunming; Wu, Sanfeng; Sanchez, Ana M.
  • Nature Materials, Vol. 13, Issue 12, p. 1096-1101
  • DOI: 10.1038/nmat4064

Probing the Influence of Dielectric Environment on Excitons in Monolayer WSe 2 : Insight from High Magnetic Fields
journal, October 2016


Extraordinary Room-Temperature Photoluminescence in Triangular WS 2 Monolayers
journal, December 2012

  • Gutiérrez, Humberto R.; Perea-López, Nestor; Elías, Ana Laura
  • Nano Letters, Vol. 13, Issue 8
  • DOI: 10.1021/nl3026357

Vertical field-effect transistor based on graphene–WS2 heterostructures for flexible and transparent electronics
journal, December 2012

  • Georgiou, Thanasis; Jalil, Rashid; Belle, Branson D.
  • Nature Nanotechnology, Vol. 8, Issue 2
  • DOI: 10.1038/nnano.2012.224

Measuring Carbon Nanotube Band Gaps through Leakage Current and Excitonic Transitions of Nanotube Diodes
journal, May 2011

  • Malapanis, Argyrios; Jones, David A.; Comfort, Everett
  • Nano Letters, Vol. 11, Issue 5
  • DOI: 10.1021/nl200150p

Tightly Bound Excitons in Monolayer WSe 2
journal, July 2014


Size, Dimensionality, and Strong Electron Correlation in Nanoscience
journal, August 2014

  • Brus, Louis
  • Accounts of Chemical Research, Vol. 47, Issue 10
  • DOI: 10.1021/ar500175h

Vertical and in-plane heterostructures from WS2/MoS2 monolayers
journal, September 2014

  • Gong, Yongji; Lin, Junhao; Wang, Xingli
  • Nature Materials, Vol. 13, Issue 12, p. 1135-1142
  • DOI: 10.1038/nmat4091

Van der Waals heterostructures
journal, July 2013

  • Geim, A. K.; Grigorieva, I. V.
  • Nature, Vol. 499, Issue 7459, p. 419-425
  • DOI: 10.1038/nature12385

Extraordinary Sunlight Absorption and One Nanometer Thick Photovoltaics Using Two-Dimensional Monolayer Materials
journal, July 2013

  • Bernardi, Marco; Palummo, Maurizia; Grossman, Jeffrey C.
  • Nano Letters, Vol. 13, Issue 8, p. 3664-3670
  • DOI: 10.1021/nl401544y

Probing the Dynamics of the Metallic-to-Semiconducting Structural Phase Transformation in MoS 2 Crystals
journal, July 2015


Emerging Device Applications for Semiconducting Two-Dimensional Transition Metal Dichalcogenides
journal, January 2014

  • Jariwala, Deep; Sangwan, Vinod K.; Lauhon, Lincoln J.
  • ACS Nano, Vol. 8, Issue 2
  • DOI: 10.1021/nn500064s

Multi-terminal transport measurements of MoS2 using a van der Waals heterostructure device platform
journal, April 2015

  • Cui, Xu; Lee, Gwan-Hyoung; Kim, Young Duck
  • Nature Nanotechnology, Vol. 10, Issue 6
  • DOI: 10.1038/nnano.2015.70

Two-dimensional atomic crystals
journal, July 2005

  • Novoselov, K. S.; Jiang, D.; Schedin, F.
  • Proceedings of the National Academy of Sciences, Vol. 102, Issue 30, p. 10451-10453
  • DOI: 10.1073/pnas.0502848102

Electrical Tuning of Exciton Binding Energies in Monolayer WS 2
journal, September 2015


Resonant internal quantum transitions and femtosecond radiative decay of excitons in monolayer WSe2
journal, July 2015

  • Poellmann, C.; Steinleitner, P.; Leierseder, U.
  • Nature Materials, Vol. 14, Issue 9
  • DOI: 10.1038/nmat4356

Screening of Excitons in Single, Suspended Carbon Nanotubes
journal, June 2007

  • Walsh, Andrew G.; Vamivakas, A. Nickolas; Yin, Yan
  • Nano Letters, Vol. 7, Issue 6
  • DOI: 10.1021/nl070193p

Valley excitons in two-dimensional semiconductors
journal, December 2014

  • Yu, Hongyi; Cui, Xiaodong; Xu, Xiaodong
  • National Science Review, Vol. 2, Issue 1
  • DOI: 10.1093/nsr/nwu078

Giant Rydberg excitons in the copper oxide Cu2O
journal, October 2014

  • Kazimierczuk, T.; Fröhlich, D.; Scheel, S.
  • Nature, Vol. 514, Issue 7522
  • DOI: 10.1038/nature13832

Excitons in van der Waals heterostructures: The important role of dielectric screening
journal, December 2015


Phase-engineered low-resistance contacts for ultrathin MoS2 transistors
journal, August 2014

  • Kappera, Rajesh; Voiry, Damien; Yalcin, Sibel Ebru
  • Nature Materials, Vol. 13, Issue 12, p. 1128-1134
  • DOI: 10.1038/nmat4080

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


Theory of neutral and charged excitons in monolayer transition metal dichalcogenides
journal, July 2013

  • Berkelbach, Timothy C.; Hybertsen, Mark S.; Reichman, David R.
  • Physical Review B, Vol. 88, Issue 4
  • DOI: 10.1103/PhysRevB.88.045318

Measurement of the optical dielectric function of monolayer transition-metal dichalcogenides: MoS 2 , Mo S e 2 , WS 2 , and WS e 2
journal, November 2014


Quasiparticle band structure calculation of monolayer, bilayer, and bulk MoS 2
journal, May 2012


Two-Dimensional Heterojunctions from Nonlocal Manipulations of the Interactions
journal, March 2016


Semiconductor Optics
book, January 2012


Resonant internal Quantum transitions and femtosecond radiative decay of excitons in monolayer WSe2
text, January 2015

  • Pöllmann, Christoph; Steinleitner, Philipp; Leierseder, Ursula
  • Universität Regensburg
  • DOI: 10.5283/epub.32244

Screening of Excitons in Single, Suspended Carbon Nanotubes
text, January 2007


Nonvolatile Memory Cells Based on MoS2/Graphene Heterostructures
text, January 2013


Theory of Neutral and Charged Excitons in Monolayer Transition Metal Dichalcogenides
text, January 2013


Probing Excitonic Dark States in Single-layer Tungsten Disulfide
text, January 2014


Two Dimensional Atomic Crystals
text, January 2005


Works referencing / citing this record:

Modulating Blue Phosphorene by Synergetic Codoping: Indirect to Direct Gap Transition and Strong Bandgap Bowing
journal, January 2019

  • Tian, Xiaoqing; Duan, Jingyi; Wei, Yadong
  • Advanced Functional Materials, Vol. 29, Issue 11
  • DOI: 10.1002/adfm.201808721

Rapid Biofilm Elimination on Bone Implants Using Near‐Infrared‐Activated Inorganic Semiconductor Heterostructures
journal, August 2019

  • Hong, Li; Liu, Xiangmei; Tan, Lei
  • Advanced Healthcare Materials, Vol. 8, Issue 19
  • DOI: 10.1002/adhm.201900835

Tuning Excitonic Properties of Pure and Mixed Halide Perovskite Thin Films via Interfacial Engineering
journal, June 2018

  • Nikolaidou, Katerina; Sarang, Som; Martin, Denzal
  • Advanced Materials Interfaces, Vol. 5, Issue 14
  • DOI: 10.1002/admi.201800209

MoS 2 and Perylene Derivative Based Type‐II Heterostructure: Bandgap Engineering and Giant Photoluminescence Enhancement
journal, December 2019

  • Obaidulla, Sk Md; Habib, Mohammad Rezwan; Khan, Yahya
  • Advanced Materials Interfaces, Vol. 7, Issue 3
  • DOI: 10.1002/admi.201901197

Effect of Dielectric Environment on Excitonic Dynamics in Monolayer WS 2
journal, September 2019


Preserving the Emission Lifetime and Efficiency of a Monolayer Semiconductor upon Transfer
journal, April 2019

  • Eizagirre Barker, Simone; Wang, Shaojun; Godiksen, Rasmus H.
  • Advanced Optical Materials, Vol. 7, Issue 13
  • DOI: 10.1002/adom.201900351

Structural, Spectroscopic, and Excitonic Dynamic Characterization in Atomically Thin Yb 3+ ‐Doped MoS 2 , Fabricated by Femtosecond Pulsed Laser Deposition
journal, September 2019

  • Maddi, Chiranjeevi; Aswin, Jyothilakshmi Ravi; Scott, Andrew
  • Advanced Optical Materials, Vol. 7, Issue 21
  • DOI: 10.1002/adom.201900753

Enhancements of Light Absorbability, Optical Conductivity, and Terahertz Cutoff Frequency in Stacked Layers of Selenium via Ag Nanoslabs Sandwiching
journal, August 2019

  • Qasrawi, Atef F.; Abu Al Rob, Osama H.
  • physica status solidi (a), Vol. 216, Issue 20
  • DOI: 10.1002/pssa.201900370

Refractive Index Dispersion of Hexagonal Boron Nitride in the Visible and Near‐Infrared
journal, October 2018

  • Lee, Seong‐Yeon; Jeong, Tae‐Young; Jung, Suyong
  • physica status solidi (b), Vol. 256, Issue 6
  • DOI: 10.1002/pssb.201800417

Screening Effect of Ultrathin Gold Films on Excitons in Monolayer WS2
journal, January 2019


Optical control of room-temperature valley polaritons
journal, July 2017


Exciton fission in monolayer transition metal dichalcogenide semiconductors
journal, October 2017


Diversity of trion states and substrate effects in the optical properties of an MoS2 monolayer
journal, December 2017


Two-dimensional semiconductors in the regime of strong light-matter coupling
journal, July 2018


Nanoscale mapping of quasiparticle band alignment
journal, July 2019


Revealing exciton masses and dielectric properties of monolayer semiconductors with high magnetic fields
journal, September 2019


Electron quantum metamaterials in van der Waals heterostructures
journal, November 2018


Dielectric disorder in two-dimensional materials
journal, August 2019


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


Observation of moiré excitons in WSe2/WS2 heterostructure superlattices
journal, February 2019


Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors
journal, September 2018


A dielectric-defined lateral heterojunction in a monolayer semiconductor
journal, February 2019


Tailoring exciton dynamics of monolayer transition metal dichalcogenides by interfacial electron-phonon coupling
journal, September 2019


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

Dual-source vacuum deposition of pure and mixed halide 2D perovskites: thin film characterization and processing guidelines
journal, January 2020

  • La-Placa, Maria-Grazia; Guo, Dengyang; Gil-Escrig, Lidón
  • Journal of Materials Chemistry C, Vol. 8, Issue 6
  • DOI: 10.1039/c9tc06662d

Imaging microscopic electronic contrasts at the interface of single-layer WS 2 with oxide and boron nitride substrates
journal, April 2019

  • Ulstrup, Søren; Koch, Roland J.; Schwarz, Daniel
  • Applied Physics Letters, Vol. 114, Issue 15
  • DOI: 10.1063/1.5088968

Electric-field-induced optical hysteresis in single-layer WSe 2
journal, October 2019

  • Sun, Zheng; Beaumariage, Jonathan; Xu, Ke
  • Applied Physics Letters, Vol. 115, Issue 16
  • DOI: 10.1063/1.5123514

Upconversion photoluminescence by charge transfer in a van der Waals trilayer
journal, October 2019

  • Hao, Shengcai; He, Dawei; Miao, Qing
  • Applied Physics Letters, Vol. 115, Issue 17
  • DOI: 10.1063/1.5125169

Impact of substrate induced band tail states on the electronic and optical properties of MoS 2
journal, December 2019

  • Klein, J.; Kerelsky, A.; Lorke, M.
  • Applied Physics Letters, Vol. 115, Issue 26
  • DOI: 10.1063/1.5131270

Self-energy effect and Coulomb potential modulation of the exciton in monolayer MoS 2 on polar substrate
journal, October 2017

  • Wang, Zi-Wu; Xiao, Yao; Li, Run-Ze
  • Journal of Physics D: Applied Physics, Vol. 50, Issue 47
  • DOI: 10.1088/1361-6463/aa90fa

Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum
journal, March 2019

  • Scharf, Benedikt; Van Tuan, Dinh; Žutić, Igor
  • Journal of Physics: Condensed Matter, Vol. 31, Issue 20
  • DOI: 10.1088/1361-648x/ab071f

Dependence of the magnetic interactions in MoS 2 monolayer on Mn-doping configurations
journal, August 2019

  • Smiri, Adlen; Gerber, Iann C.; Lounis, Samir
  • Journal of Physics: Condensed Matter, Vol. 31, Issue 46
  • DOI: 10.1088/1361-648x/ab360b

Singlet and triplet trions in WS 2 monolayer encapsulated in hexagonal boron nitride
journal, June 2018


The impact of hexagonal boron nitride encapsulation on the structural and vibrational properties of few layer black phosphorus
journal, February 2019

  • Birowska, Magdalena; Urban, Joanna; Baranowski, Michał
  • Nanotechnology, Vol. 30, Issue 19
  • DOI: 10.1088/1361-6528/ab0332

Direct determination of monolayer MoS 2 and WSe 2 exciton binding energies on insulating and metallic substrates
journal, January 2018


Band-bending induced by charged defects and edges of atomically thin transition metal dichalcogenide films
journal, June 2018


Multimodal spectromicroscopy of monolayer WS 2 enabled by ultra-clean van der Waals epitaxy
journal, July 2018


Interlayer screening effects in WS 2 /WSe 2 van der Waals hetero-bilayer
journal, August 2018


Dielectric impact on exciton binding energy and quasiparticle bandgap in monolayer WS 2 and WSe 2
journal, March 2019


Lithographically defined synthesis of transition metal dichalcogenides
journal, September 2019


Gate-tunable flat bands in van der Waals patterned dielectric superlattices
journal, December 2019


Scanning tunneling spectroscopy of MoS 2 monolayer in presence of ethanol gas
journal, April 2018

  • Hosseini, Seyed Ali; Iraji zad, Azam; Berahman, Masoud
  • Materials Research Express, Vol. 5, Issue 4
  • DOI: 10.1088/2053-1591/aab90a

Direct observation of giant binding energy modulation of exciton complexes in monolayer MoS e 2
journal, August 2017


Exciton broadening in WS 2 /graphene heterostructures
journal, November 2017


Coulomb interaction in monolayer transition-metal dichalcogenides
journal, September 2018


Engineering of optical and electronic band gaps in transition metal dichalcogenide monolayers through external dielectric screening
journal, October 2017


Highly efficient hot electron harvesting from graphene before electron-hole thermalization
journal, November 2019


Nanophotonics with 2D transition metal dichalcogenides [Invited]
journal, January 2018

  • Krasnok, Alex; Lepeshov, Sergey; Alú, Andrea
  • Optics Express, Vol. 26, Issue 12
  • DOI: 10.1364/oe.26.015972

High-efficiency energy transfer in perovskite heterostructures
journal, January 2018

  • Song, Yiling; Zhang, Cong; Liu, Weiwei
  • Optics Express, Vol. 26, Issue 14
  • DOI: 10.1364/oe.26.018448

Modulating Blue Phosphorene by Synergetic Codoping: Indirect to Direct Gap Transition and Strong Bandgap Bowing
journal, March 2021

  • Tian, Xiaoqing; Duan, Jingyi; Wei, Yadong
  • Advanced Functional Materials, Vol. 31, Issue 11
  • DOI: 10.1002/adfm.202010893

Dynamics of Free and Localized Excitons in Two‐Dimensional Transition Metal Dichalcogenides
journal, February 2019


Charge‐Accumulation Effect in Transition Metal Dichalcogenide Heterobilayers
journal, August 2019


Resonant optical Stark effect in monolayer WS2
journal, December 2019

  • Cunningham, Paul D.; Hanbicki, Aubrey T.; Reinecke, Thomas L.
  • Nature Communications, Vol. 10, Issue 1
  • DOI: 10.1038/s41467-019-13501-x

Ultra-thin van der Waals crystals as semiconductor quantum wells
journal, January 2020


Exciton Relaxation Cascade in two-dimensional Transition Metal Dichalcogenides
journal, May 2018


Demonstration of the key substrate-dependent charge transfer mechanisms between monolayer MoS2 and molecular dopants
journal, September 2019


Restoring the intrinsic optical properties of CVD-grown MoS 2 monolayers and their heterostructures
journal, January 2019

  • Kojima, Kana; Lim, Hong En; Liu, Zheng
  • Nanoscale, Vol. 11, Issue 27
  • DOI: 10.1039/c9nr01481k

Theoretical investigation of the vertical dielectric screening dependence on defects for few-layered van der Waals materials
journal, January 2019

  • Singh, Amit; Lee, Seunghan; Bae, Hyeonhu
  • RSC Advances, Vol. 9, Issue 69
  • DOI: 10.1039/c9ra07700f

Impact of photodoping on inter- and intralayer exciton emission in a MoS 2 /MoSe 2 /MoS 2 heterostructure
journal, August 2018

  • Zhang, Nan; Surrente, Alessandro; Baranowski, Michal
  • Applied Physics Letters, Vol. 113, Issue 6
  • DOI: 10.1063/1.5043098

Charged excitons in two-dimensional transition metal dichalcogenides: Semiclassical calculation of Berry curvature effects
journal, September 2019


Exciton routing in the heterostructure of a transition metal dichalcogenide monolayer on a paraelectric substrate
journal, October 2019


Noninvasive control of excitons in two-dimensional materials
journal, July 2017


Environmentally sensitive theory of electronic and optical transitions in atomically thin semiconductors
journal, January 2018


Radiative lifetime of localized excitons in transition-metal dichalcogenides
journal, November 2018


Rigid Band Shifts in Two-Dimensional Semiconductors through External Dielectric Screening
journal, November 2019


Photocarrier generation from interlayer charge-transfer transitions in WS 2 -graphene heterostructures
journal, February 2018


Giant gate-tunable bandgap renormalization and excitonic effects in a 2D semiconductor
journal, July 2019


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

Exciton broadening in WS2 /graphene heterostructures
text, January 2017

  • Hill, Heather M.; Rigosi, Albert F.; Raja, Archana
  • Universität Regensburg
  • DOI: 10.5283/epub.40515

Facile synthesis of thin black TiO2 − x nanosheets with enhanced lithium-storage capacity and visible light photocatalytic hydrogen production
journal, January 2019


Visualizing electrostatic gating effects in two-dimensional heterostructures
journal, July 2019


Polariton hyperspectral imaging of two-dimensional semiconductor crystals
journal, September 2019


Magneto-spectroscopy of exciton Rydberg states in a CVD grown WSe 2 monolayer
journal, June 2019

  • Delhomme, A.; Butseraen, G.; Zheng, B.
  • Applied Physics Letters, Vol. 114, Issue 23
  • DOI: 10.1063/1.5095573

Probing interlayer excitons in a vertical van der Waals p-n junction using a scanning probe microscopy technique
journal, January 2019

  • Rahaman, Mahfujur; Wagner, Christian; Mukherjee, Ashutosh
  • Journal of Physics: Condensed Matter, Vol. 31, Issue 11
  • DOI: 10.1088/1361-648x/aafd12

Comparative study of the exciton binding energies of thin and ultrathin organic-inorganic perovskites due to dielectric mismatch effects
journal, July 2017

  • Zahra, Haitham; Hichri, Aïda; Jaziri, Sihem
  • Journal of Applied Physics, Vol. 122, Issue 1
  • DOI: 10.1063/1.4989838

Polariton hyperspectral imaging of two-dimensional semiconductor crystals
text, January 2019


Experimental observation of a negative grey trion in an electron-rich WSe 2 monolayer
text, January 2019


Singlet and triplet trions in WS$_2$ monolayer encapsulated in hexagonal boron nitride
text, January 2018


Radiative lifetime of localized excitons in transition metal dichalcogenides
text, January 2018


Two-dimensional semiconductors in the regime of strong light-matter coupling
text, January 2018


Intrinsic Lifetime of Higher Excitonic States in Tungsten Diselenide Monolayers
text, January 2019


Gate-tunable flat bands in van der Waals patterned dielectric superlattices
text, January 2019


Dependence of the magnetic interactions in MoS$_2$ monolayer on Mn-doping configurations
text, January 2019


Morphology Control of Epitaxial Monolayer Transition Metal Dichalcogenides
text, January 2019


Ultra-thin van der Waals crystals as semiconductor quantum wells
text, January 2019


Colloquium : Excitons in atomically thin transition metal dichalcogenides
text, January 2018

  • Wang, Gang; Chernikov, Alexey; Glazov, Mikhail M.
  • Universität Regensburg
  • DOI: 10.5283/epub.40518