Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Flexo-photovoltaic effect

Tools
- Tools
+ Tools

Yang, Ming-Min, Kim, Dong Jik and Alexe, M. (Marin) (2018) Flexo-photovoltaic effect. Science, 360 (6391). pp. 904-907. eaan3256. doi:10.1126/science.aan3256

[img]
Preview
PDF
WRAP-flexo-photovoltaic-effect-Alexe-2018.pdf - Accepted Version - Requires a PDF viewer.

Download (2231Kb) | Preview
Official URL: http://doi.org/10.1126/science.aan3256

Request Changes to record.

Abstract

It is highly desirable to discover photovoltaic mechanisms that enable a higher efficiency of solar cells. Here, we report that the bulk photovoltaic effect, which is free from the thermodynamic Shockley-Queisser limit but usually manifested only in noncentrosymmetric (piezoelectric or ferroelectric) materials, can be realized in any semiconductor, including silicon, by mediation of flexoelectric effect. We introduce strain gradients using either an atomic force microscope or a micron-scale indentation system, creating giant photovoltaic currents from centrosymmetric single crystals of SrTiO3, TiO2, and Si. This strain-gradient-induced bulk photovoltaic effect, which we call the flexo-photovoltaic effect, functions in the absence of a p-n junction. This finding may extend present solar cell technologies by boosting the solar energy conversion efficiency from a wide pool of established semiconductors.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
SWORD Depositor: Library Publications Router
Library of Congress Subject Headings (LCSH): Photovoltaic effect, Semiconductors -- Electric properties, Silicon solar cells, Solar cells -- Materials
Journal or Publication Title: Science
Publisher: American Association for the Advancement of Science (AAAS)
ISSN: 1095-9203
Official Date: 19 April 2018
Dates:
DateEvent
19 April 2018Published
6 April 2018Accepted
Volume: 360
Number: 6391
Page Range: pp. 904-907
Article Number: eaan3256
DOI: 10.1126/science.aan3256
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
Chancellor’s International ScholarshipUniversity of Warwickhttp://dx.doi.org/10.13039/501100000741
Wolfson Research Merit AwardRoyal Societyhttp://dx.doi.org/10.13039/501100000288
Theo Murphy Blue-Sky AwardRoyal Societyhttp://dx.doi.org/10.13039/501100000288
EP/M022706/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/P031544/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
EP/P025803/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
Related URLs:
  • Related dataset

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us