Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics

Jariwala, Deep; Davoyan, Artur R.; Tagliabue, Giulia; Sherrott, Michelle C.; Wong, Joeson; Atwater, Harry A.

doi:10.1021/acs.nanolett.6b01914

Title: Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics

Abstract

In this work we demonstrate near-unity, broadband absorbing optoelectronic devices using sub-15 nm thick transition metal dichalcogenides (TMDCs) of molybdenum and tungsten as van der Waals semiconductor active layers. Specifically, we report that near-unity light absorption is possible in extremely thin (<15 nm) van der Waals semiconductor structures by coupling to strongly damped optical modes of semiconductor/metal heterostructures. We further fabricate Schottky junction devices using these highly absorbing heterostructures and characterize their optoelectronic performance. Our work addresses one of the key criteria to enable TMDCs as potential candidates to achieve high optoelectronic efficiency.

Authors:

Jariwala, Deep ^[1]; Davoyan, Artur R. ^[1]; Tagliabue, Giulia ^[1]; Sherrott, Michelle C. ^[1]; Wong, Joeson ^[1]; Atwater, Harry A. ^[1]

California Inst. of Technology (CalTech), Pasadena, CA (United States)

Publication Date:: Fri Aug 26 00:00:00 EDT 2016

Research Org.:: Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES); Swiss National Science Foundation (SNSF); National Science Foundation (NSF)

OSTI Identifier:: 1388841

Grant/Contract Number:: SC0001293; P2EZP2_159101; 1144469

Resource Type:: Accepted Manuscript

Journal Name:: Nano Letters

Additional Journal Information:: Journal Volume: 16; Journal Issue: 9; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 1530-6984

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; transition metal dichalcogenides; heterostructures; light trapping; broadband; near-unity absorption; photovoltaics; solar (photovoltaic); solid state lighting; phonons; thermal conductivity; electrodes - solar; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly)

Citation Formats


                    Jariwala, Deep, Davoyan, Artur R., Tagliabue, Giulia, Sherrott, Michelle C., Wong, Joeson, and Atwater, Harry A. Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics.  United States: N. p., 2016. 
Web.  doi:10.1021/acs.nanolett.6b01914.

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                    Jariwala, Deep, Davoyan, Artur R., Tagliabue, Giulia, Sherrott, Michelle C., Wong, Joeson, & Atwater, Harry A. Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics.  United States.  https://doi.org/10.1021/acs.nanolett.6b01914

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                    Jariwala, Deep, Davoyan, Artur R., Tagliabue, Giulia, Sherrott, Michelle C., Wong, Joeson, and Atwater, Harry A. Fri .  
"Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics".  United States.  https://doi.org/10.1021/acs.nanolett.6b01914.  https://www.osti.gov/servlets/purl/1388841.

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@article{osti_1388841,

  title        = {Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics},

  author       = {Jariwala, Deep and Davoyan, Artur R. and Tagliabue, Giulia and Sherrott, Michelle C. and Wong, Joeson and Atwater, Harry A.},

  abstractNote = {In this work we demonstrate near-unity, broadband absorbing optoelectronic devices using sub-15 nm thick transition metal dichalcogenides (TMDCs) of molybdenum and tungsten as van der Waals semiconductor active layers. Specifically, we report that near-unity light absorption is possible in extremely thin (<15 nm) van der Waals semiconductor structures by coupling to strongly damped optical modes of semiconductor/metal heterostructures. We further fabricate Schottky junction devices using these highly absorbing heterostructures and characterize their optoelectronic performance. Our work addresses one of the key criteria to enable TMDCs as potential candidates to achieve high optoelectronic efficiency.},

  doi          = {10.1021/acs.nanolett.6b01914},

  journal      = {Nano Letters},

  number       = 9,

  volume       = 16,

  place        = {United States},

  year         = {Fri Aug 26 00:00:00 EDT 2016},

  month        = {Fri Aug 26 00:00:00 EDT 2016}

}

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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 excitonmore »« less
Cited by 292
https://doi.org/10.1038/s41565-018-0298-5

Full Text Available
Photoresponse of Natural van der Waals Heterostructures

Journal Article Ray, Kyle ; Yore, Alexander E. ; Mou, Tong ; ... - ACS Nano

Van der Waals heterostructures consisting of two-dimensional materials offer a platform to obtain materials by design and are very attractive owing to unique electronic states. Research on 2D van der Waals heterostructures (vdWH) has so far been focused on fabricating individually stacked atomically thin unary or binary crystals. Such systems include graphene, hexagonal boron nitride, and members of the transition metal dichalcogenide family. In this paper, we present our experimental study of the optoelectronic properties of a naturally occurring vdWH, known as franckeite, which is a complex layered crystal composed of lead, tin, antimony, iron, and sulfur. We present heremore »« less
Cited by 31
https://doi.org/10.1021/acsnano.7b01918

Full Text Available
Moiré-Assisted Strain Transfer in Vertical van der Waals Heterostructures

Journal Article Hu, Jenny ; Yu, Leo ; Chen, Xueqi ; ... - Nano Letters

Strain provides a powerful method to study 2D monolayers and to tune their properties. The same approach also has great potential for van-der-Waals (vdW) heterostructures. However, we need to understand how strain can be applied to vertically stacked vdW structures, for which strain transfer from one layer to the next remains little explored. In our experiment, we fabricated vertical heterostructures consisting of transition metal dichalcogenides (TMDCs) monolayers that were deposited on a flexible substrate. These TMDC heterostructures allowed us to read out separately the strain in each monolayer by photoluminescence measurements. We find that, in TMDC heterostructures with large twistmore »« less
https://doi.org/10.1021/acs.nanolett.3c03388
Two-dimensional van der Waals heterojunctions for functional materials and devices

Journal Article Hu, Wei ; Yang, Jinlong - Journal of Materials Chemistry C

Two-dimensional (2D) materials, such as graphene, phosphorene, graphitic carbon nitride (g-C3N4), graphitic zinc oxide (g-ZnO) and transition metal dichalcogenides (TMDs, e.g., MoS2), have already attracted extensive attention due to their outstanding properties and wide range of applications in electronic and optoelectronic devices. In particular, 2D van der Waals heterojunctions combining the electronic structures of such 2D materials have also been predicted theoretically and synthesized experimentally to expect more new properties (e.g., bandgap opening in graphene, semiconductor band alignment, charge transfer and new optical absorption) and potential applications (e.g., solar cells, field-effect transistors (FFTs), PN junctions, PN diodes and photodetectors) farmore »« less
https://doi.org/10.1039/c7tc04697a
Orientated Growth of Ultrathin Tellurium by van der Waals Epitaxy

Journal Article Zhao, Chunsong ; Batiz, Humberto ; Yasar, Bengisu ; ... - Advanced Materials Interfaces

Abstract Tellurium, as an elemental van der Waals semiconductor, has intriguing anisotropic physical properties owing to its inherent 1D crystal structure. To exploit the anisotropic and thickness‐dependent behavior, it is important to realize orientated growth of ultrathin tellurium. Here, van der Waals epitaxial growth of Te on the surface of 2D transition metal dichalcogenides is systematically investigated. Orientated growth of Te with a thickness down to 5 nm is realized on three‐fold symmetric substrates (WSe ₂ , WS ₂ , MoSe ₂ , and MoS ₂ ), where the atomic chains of Te are aligned with the armchair directions of substrates.more »« less
https://doi.org/10.1002/admi.202101540

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Title: Near-Unity Absorption in van der Waals Semiconductors for Ultrathin Optoelectronics

Abstract

Citation Formats

Colloidal Quantum-Dot Photodetectors Exploiting Multiexciton Generation journal, June 2009

Ultrasensitive solution-cast quantum dot photodetectors journal, July 2006

Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodes journal, May 2000

High-efficiency light-emitting devices based on quantum dots with tailored nanostructures journal, March 2015

Photovoltaic materials: Present efficiencies and future challenges journal, April 2016

Plasmonics for improved photovoltaic devices journal, February 2010

Photonic design principles for ultrahigh-efficiency photovoltaics journal, February 2012

Ultrathin GaAs Solar Cells With a Silver Back Mirror journal, March 2015

Enhanced absorption and carrier collection in Si wire arrays for photovoltaic applications journal, February 2010

Light Trapping in Silicon Nanowire Solar Cells journal, January 2010

Broadband omnidirectional antireflection coating based on subwavelength surface Mie resonators journal, January 2012

Improving thin-film crystalline silicon solar cell efficiencies with photonic crystals journal, January 2007

Efficiency enhancement in Si solar cells by textured photonic crystal back reflector journal, September 2006

Plasmonic Nanostructure Design for Efficient Light Coupling into Solar Cells journal, December 2008

Design Considerations for Plasmonic Photovoltaics journal, September 2010

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

Strong Light-Matter Interactions in Heterostructures of Atomically Thin Films journal, May 2013

Highly efficient gate-tunable photocurrent generation in vertical heterostructures of layered materials journal, October 2013

Solar-energy conversion and light emission in an atomic monolayer p–n diode journal, March 2014

Hybrid, Gate-Tunable, van der Waals p–n Heterojunctions from Pentacene and MoS 2 journal, December 2015

Optoelectronic devices based on electrically tunable p–n diodes in a monolayer dichalcogenide journal, March 2014

Strong light–matter coupling in two-dimensional atomic crystals journal, December 2014

Enhanced absorption in two-dimensional materials via Fano-resonant photonic crystals journal, May 2015

Engineering Light Outcoupling in 2D Materials journal, January 2015

Broadband Absorption Enhancement in Solar Cells with an Atomically Thin Active Layer journal, March 2016

Broadband Absorption Engineering to Enhance Light Absorption in Monolayer MoS 2 journal, April 2016

Solar Cell Light Trapping beyond the Ray Optic Limit journal, December 2011

Fundamental limit of nanophotonic light trapping in solar cells journal, September 2010

Nanometre optical coatings based on strong interference effects in highly absorbing media journal, October 2012

Van der Waals heterostructures journal, July 2013

Solution-Processed Self-Assembled Nanodielectrics on Template-Stripped Metal Substrates journal, November 2015

Two-dimensional atomic crystals journal, July 2005

Electronics and optoelectronics of two-dimensional transition metal dichalcogenides journal, November 2012

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

Kramers-Kronig analysis of the reflectivity spectra of 3R-WS 2 and 2H-WSe 2 journal, June 1976

Kramers-Kronig analysis of the reflectivity spectra of 2H-MoS 2 , 2H-MoSe 2 and 2H-MoTe 2 journal, March 1979

Layer-Dependent Optical Conductivity in Atomic Thin WS 2 by Reflection Contrast Spectroscopy journal, September 2014

Evolution of Electronic Structure in Atomically Thin Sheets of WS 2 and WSe 2 journal, December 2012

Solar cell efficiency enhancement via light trapping in printable resonant dielectric nanosphere arrays journal, November 2012

Effects of confinement and environment on the electronic structure and exciton binding energy of MoS 2 from first principles journal, December 2012

Bimolecular Recombination in Organic Photovoltaics journal, April 2014

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

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

High-mobility three-atom-thick semiconducting films with wafer-scale homogeneity journal, April 2015

Intercalation of Layered Materials from Bulk to 2D journal, May 2019

Semiconductor Thin Film Based Metasurfaces and Metamaterials for Photovoltaic and Photoelectrochemical Water Splitting Applications journal, April 2019

Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique journal, July 2018

Dynamic tungsten diselenide nanomaterials: supramolecular assembly-induced structural transition over exfoliated two-dimensional nanosheets journal, January 2018

Selective Oxidation of WS 2 Defect Domain with Sub‐Monolayer Thickness Leads to Multifold Enhancement in Photoluminescence journal, August 2019

Physics of excitons and their transport in two dimensional transition metal dichalcogenide semiconductors journal, January 2019

Mixed-Dimensional 1D ZnO-2D WSe 2 van der Waals Heterojunction Device for Photosensors journal, November 2017

Rapid-throughput solution-based production of wafer-scale 2D MoS 2 journal, April 2019

Metal-Insulator-Metal-Based Plasmonic Metamaterial Absorbers at Visible and Infrared Wavelengths: A Review journal, March 2018

Fluoride Fiber-Based Plasmonic Biosensor with Two-Dimensional Material Heterostructures: Enhancement of Overall Figure-of-Merit via Optimization of Radiation Damping in Near Infrared Region journal, May 2019

Tuning the Carrier Confinement in GeS/Phosphorene van der Waals Heterostructures journal, January 2018

Ultrahigh omnidirectional, broadband, and polarization-independent optical absorption over the visible wavelengths by effective dispersion engineering journal, July 2019

Layer dependent photoresponse behavior of chemical vapor deposition synthesized MoS 2 films for broadband optical sensing journal, September 2019

Two-Dimensional Material Molybdenum Disulfides as Electrocatalysts for Hydrogen Evolution journal, September 2017

Lateral 2D WSe 2 p–n Homojunction Formed by Efficient Charge‐Carrier‐Type Modulation for High‐Performance Optoelectronics journal, January 2020

Engineering Optical Absorption in Graphene and Other 2D Materials: Advances and Applications journal, July 2019

Van der Waals materials integrated nanophotonic devices [Invited] journal, January 2019

Low-dimensional catalysts for hydrogen evolution and CO2 reduction journal, January 2018

First-principles calculations of the electronic properties of SiC-based bilayer and trilayer heterostructures journal, January 2018

Two-Dimensional Absorbers for Solar Windows: A Simulation journal, August 2019

Ultrathin polarization-insensitive wide-angle broadband near-perfect absorber in the visible regime based on few-layer MoS 2 films journal, September 2017

A new metal transfer process for van der Waals contacts to vertical Schottky-junction transition metal dichalcogenide photovoltaics journal, December 2019

Interference-Enhanced Broadband Absorption of Monolayer MoS 2 on Sub-100 nm Thick SiO 2 /Si Substrates: Reflection and Transmission Phase Changes at Interfaces journal, April 2018

Magnetic polariton enhanced broadband absorption and photoresponse of monolayer MoS 2 based on normal and anomalous metallic gratings journal, June 2018

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells journal, December 2019

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

Engineering graphene and TMDs based van der Waals heterostructures for photovoltaic and photoelectrochemical solar energy conversion journal, January 2018

Nanoscale doping heterogeneity in few-layer WSe 2 exfoliated onto noble metals revealed by correlated SPM and TERS imaging journal, April 2018

Recent advancement in the performance of solar cells by incorporating transition metal dichalcogenides as counter electrode and photoabsorber journal, February 2019

2D Photovoltaic Devices: Progress and Prospects journal, January 2018

Simulation study on comprehensive sensing enhancement of BlueP/MoS 2 - and BlueP/WS 2 -based fluoride fiber surface plasmon resonance sensors: analysis founded on damping, field, and optical power journal, January 2019

Gate-tunable and high optoelectronic performance in multilayer WSe 2 P–N diode journal, January 2018

Emerging photonic architectures in two-dimensional opto-electronics journal, January 2018

Colloidal Quantum-Dot Photodetectors Exploiting Multiexciton Generation
journal, June 2009

Ultrasensitive solution-cast quantum dot photodetectors
journal, July 2006

Efficient photon harvesting at high optical intensities in ultrathin organic double-heterostructure photovoltaic diodes
journal, May 2000

High-efficiency light-emitting devices based on quantum dots with tailored nanostructures
journal, March 2015

Photovoltaic materials: Present efficiencies and future challenges
journal, April 2016

Plasmonics for improved photovoltaic devices
journal, February 2010

Photonic design principles for ultrahigh-efficiency photovoltaics
journal, February 2012

Ultrathin GaAs Solar Cells With a Silver Back Mirror
journal, March 2015

Enhanced absorption and carrier collection in Si wire arrays for photovoltaic applications
journal, February 2010

Light Trapping in Silicon Nanowire Solar Cells
journal, January 2010

Broadband omnidirectional antireflection coating based on subwavelength surface Mie resonators
journal, January 2012

Improving thin-film crystalline silicon solar cell efficiencies with photonic crystals
journal, January 2007

Efficiency enhancement in Si solar cells by textured photonic crystal back reflector
journal, September 2006

Plasmonic Nanostructure Design for Efficient Light Coupling into Solar Cells
journal, December 2008

Design Considerations for Plasmonic Photovoltaics
journal, September 2010

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

Strong Light-Matter Interactions in Heterostructures of Atomically Thin Films
journal, May 2013

Highly efficient gate-tunable photocurrent generation in vertical heterostructures of layered materials
journal, October 2013

Solar-energy conversion and light emission in an atomic monolayer p–n diode
journal, March 2014

Hybrid, Gate-Tunable, van der Waals p–n Heterojunctions from Pentacene and MoS ₂
journal, December 2015

Optoelectronic devices based on electrically tunable p–n diodes in a monolayer dichalcogenide
journal, March 2014

Strong light–matter coupling in two-dimensional atomic crystals
journal, December 2014

Enhanced absorption in two-dimensional materials via Fano-resonant photonic crystals
journal, May 2015

Engineering Light Outcoupling in 2D Materials
journal, January 2015

Broadband Absorption Enhancement in Solar Cells with an Atomically Thin Active Layer
journal, March 2016

Broadband Absorption Engineering to Enhance Light Absorption in Monolayer MoS ₂
journal, April 2016

Solar Cell Light Trapping beyond the Ray Optic Limit
journal, December 2011

Fundamental limit of nanophotonic light trapping in solar cells
journal, September 2010

Nanometre optical coatings based on strong interference effects in highly absorbing media
journal, October 2012

Van der Waals heterostructures
journal, July 2013

Solution-Processed Self-Assembled Nanodielectrics on Template-Stripped Metal Substrates
journal, November 2015

Two-dimensional atomic crystals
journal, July 2005

Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
journal, November 2012

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

Kramers-Kronig analysis of the reflectivity spectra of 3R-WS ₂ and 2H-WSe ₂
journal, June 1976

Kramers-Kronig analysis of the reflectivity spectra of 2H-MoS ₂ , 2H-MoSe ₂ and 2H-MoTe ₂
journal, March 1979

Layer-Dependent Optical Conductivity in Atomic Thin WS ₂ by Reflection Contrast Spectroscopy
journal, September 2014

Evolution of Electronic Structure in Atomically Thin Sheets of WS ₂ and WSe ₂
journal, December 2012

Solar cell efficiency enhancement via light trapping in printable resonant dielectric nanosphere arrays
journal, November 2012

Effects of confinement and environment on the electronic structure and exciton binding energy of MoS $_{2}$ from first principles
journal, December 2012

Bimolecular Recombination in Organic Photovoltaics
journal, April 2014

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

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

High-mobility three-atom-thick semiconducting films with wafer-scale homogeneity
journal, April 2015

Intercalation of Layered Materials from Bulk to 2D
journal, May 2019

Semiconductor Thin Film Based Metasurfaces and Metamaterials for Photovoltaic and Photoelectrochemical Water Splitting Applications
journal, April 2019

Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique
journal, July 2018

Dynamic tungsten diselenide nanomaterials: supramolecular assembly-induced structural transition over exfoliated two-dimensional nanosheets
journal, January 2018

Selective Oxidation of WS ₂ Defect Domain with Sub‐Monolayer Thickness Leads to Multifold Enhancement in Photoluminescence
journal, August 2019

Physics of excitons and their transport in two dimensional transition metal dichalcogenide semiconductors
journal, January 2019

Mixed-Dimensional 1D ZnO-2D WSe ₂ van der Waals Heterojunction Device for Photosensors
journal, November 2017

Rapid-throughput solution-based production of wafer-scale 2D MoS ₂
journal, April 2019

Metal-Insulator-Metal-Based Plasmonic Metamaterial Absorbers at Visible and Infrared Wavelengths: A Review
journal, March 2018

Fluoride Fiber-Based Plasmonic Biosensor with Two-Dimensional Material Heterostructures: Enhancement of Overall Figure-of-Merit via Optimization of Radiation Damping in Near Infrared Region
journal, May 2019

Tuning the Carrier Confinement in GeS/Phosphorene van der Waals Heterostructures
journal, January 2018

Ultrahigh omnidirectional, broadband, and polarization-independent optical absorption over the visible wavelengths by effective dispersion engineering
journal, July 2019

Layer dependent photoresponse behavior of chemical vapor deposition synthesized MoS ₂ films for broadband optical sensing
journal, September 2019

Two-Dimensional Material Molybdenum Disulfides as Electrocatalysts for Hydrogen Evolution
journal, September 2017

Lateral 2D WSe ₂ p–n Homojunction Formed by Efficient Charge‐Carrier‐Type Modulation for High‐Performance Optoelectronics
journal, January 2020

Engineering Optical Absorption in Graphene and Other 2D Materials: Advances and Applications
journal, July 2019

Van der Waals materials integrated nanophotonic devices [Invited]
journal, January 2019

Low-dimensional catalysts for hydrogen evolution and CO2 reduction
journal, January 2018

First-principles calculations of the electronic properties of SiC-based bilayer and trilayer heterostructures
journal, January 2018

Two-Dimensional Absorbers for Solar Windows: A Simulation
journal, August 2019

Ultrathin polarization-insensitive wide-angle broadband near-perfect absorber in the visible regime based on few-layer MoS ₂ films
journal, September 2017

A new metal transfer process for van der Waals contacts to vertical Schottky-junction transition metal dichalcogenide photovoltaics
journal, December 2019

Interference-Enhanced Broadband Absorption of Monolayer MoS ₂ on Sub-100 nm Thick SiO ₂ /Si Substrates: Reflection and Transmission Phase Changes at Interfaces
journal, April 2018

Magnetic polariton enhanced broadband absorption and photoresponse of monolayer MoS ₂ based on normal and anomalous metallic gratings
journal, June 2018

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells
journal, December 2019

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

Engineering graphene and TMDs based van der Waals heterostructures for photovoltaic and photoelectrochemical solar energy conversion
journal, January 2018

Nanoscale doping heterogeneity in few-layer WSe ₂ exfoliated onto noble metals revealed by correlated SPM and TERS imaging
journal, April 2018

Recent advancement in the performance of solar cells by incorporating transition metal dichalcogenides as counter electrode and photoabsorber
journal, February 2019

2D Photovoltaic Devices: Progress and Prospects
journal, January 2018

Simulation study on comprehensive sensing enhancement of BlueP/MoS ₂ - and BlueP/WS ₂ -based fluoride fiber surface plasmon resonance sensors: analysis founded on damping, field, and optical power
journal, January 2019

Gate-tunable and high optoelectronic performance in multilayer WSe ₂ P–N diode
journal, January 2018

Emerging photonic architectures in two-dimensional opto-electronics
journal, January 2018

Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique
collection, January 2018

Micro-Extinction Spectroscopy (MExS): a versatile optical characterization technique
text, January 2018

Near-Unity Light Absorption in a Monolayer WS ₂ Van der Waals Heterostructure Cavity
journal, April 2020