A Caltech Library Service

Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook

Jariwala, Deep and Davoyan, Artur R. and Wong, Joeson and Atwater, Harry A. (2017) Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook. ACS Photonics, 4 (12). pp. 2962-2970. ISSN 2330-4022. doi:10.1021/acsphotonics.7b01103.

[img] PDF - Accepted Version
See Usage Policy.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


Two-dimensional (2D) semiconductors provide a unique opportunity for optoelectronics due to their layered atomic structure and electronic and optical properties. To date, a majority of the application-oriented research in this field has been focused on field-effect electronics as well as photodetectors and light emitting diodes. Here we present a perspective on the use of 2D semiconductors for photovoltaic applications. We discuss photonic device designs that enable light trapping in nanometer-thickness absorber layers, and we also outline schemes for efficient carrier transport and collection. We further provide theoretical estimates of efficiency indicating that 2D semiconductors can indeed be competitive with and complementary to conventional photovoltaics, based on favorable energy bandgap, absorption, external radiative efficiency, along with recent experimental demonstrations. Photonic and electronic design of 2D semiconductor photovoltaics represents a new direction for realizing ultrathin, efficient solar cells with applications ranging from conventional power generation to portable and ultralight solar power.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Jariwala, Deep0000-0002-3570-8768
Davoyan, Artur R.0000-0002-4662-1158
Wong, Joeson0000-0002-6304-7602
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2017 American Chemical Society. Received: September 22, 2017; Revised: October 10, 2017; Accepted: October 23, 2017; Published: October 23, 2017. This work is part of the “Light–Material Interactions in Energy Conversion” Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0001293. D.J. and A.R.D. acknowledge additional support from the Space Solar Power project and the Resnick Sustainability Institute Graduate and Postdoctoral Fellowships. A.R.D. also acknowledges support in part from the Kavli Nanoscience Institute Postdoctoral Fellowship. J.W. acknowledges support from the National Science Foundation Graduate Research Fellowship under Grant No. 1144469. All the authors acknowledge support of the Space Solar Power Initiative at Caltech funded by the Northrop Grumman Corporation. The authors declare no competing financial interest.
Group:Resnick Sustainability Institute, Kavli Nanoscience Institute, Space Solar Power Project
Funding AgencyGrant Number
Department of Energy (DOE)DE-SC0001293
Space Solar Power ProjectUNSPECIFIED
Resnick Sustainability InstituteUNSPECIFIED
Kavli Nanoscience InstituteUNSPECIFIED
NSF Graduate Research FellowshipDGE-1144469
Northrop Grumman CorporationUNSPECIFIED
Subject Keywords:transition metal dichalcogenides, heterostructures, light-trapping, Shockley-Quessier, nanophotonics, 2D materials
Issue or Number:12
Record Number:CaltechAUTHORS:20171025-101024290
Persistent URL:
Official Citation:Van der Waals Materials for Atomically-Thin Photovoltaics: Promise and Outlook. Deep Jariwala, Artur R. Davoyan, Joeson Wong, and Harry A. Atwater. ACS Photonics 2017 4 (12), 2962-2970. DOI: 10.1021/acsphotonics.7b01103
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:82651
Deposited By: Tony Diaz
Deposited On:25 Oct 2017 17:45
Last Modified:15 Nov 2021 19:52

Repository Staff Only: item control page