DOI: 10.1126/science.aan3256. Flexo-photovoltaic effect

10.1126/science.aan3256

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Poking a semiconductor Noncentrosymmetric crystal structure can lead to a peculiar kind of charge separation under illumination called the bulk photovoltaic (BPV) effect. Solar cells made of such materials, however, typically have low efficiency. Yang et al. expanded the class of materials capable of exhibiting the BPV effect by making ordinarily centrosymmetric materials, such as SrTiO 3 and TiO 2 , lose their inversion symmetry. The authors accomplished this by applying a point force on the surface of the material. This induced a strain gradient and the loss of inversion symmetry, resulting in large photovoltaic currents under illumination. The mechanism, dubbed the flexo-photovoltaic effect, is expected to apply to most semiconductors. Science , this issue p. 904

Bibliography

Yang, M.-M., Kim, D. J., & Alexe, M. (2018). Flexo-photovoltaic effect. Science, 360(6391), 904â907.

Authors 3

Ming-Min Yang (first)
Dong Jik Kim (additional)
Marin Alexe (additional)

References 42 Referenced 360

10.1080/14786448508627681
10.1038/nmat4676
10.1126/science.aad4424
A. Fahrenbruch R. Bube Fundamentals of Solar Cells: Photovoltaic Solar Energy Conversion (Elsevier 2012).
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Dates

Type	When
Created	7 years, 4 months ago (April 19, 2018, 2:05 p.m.)
Deposited	1 year, 7 months ago (Jan. 15, 2024, 12:12 p.m.)
Indexed	35 minutes ago (Aug. 27, 2025, 11:14 a.m.)
Issued	7 years, 3 months ago (May 25, 2018)
Published	7 years, 3 months ago (May 25, 2018)
Published Print	7 years, 3 months ago (May 25, 2018)

Funders 4

Engineering and Physical Sciences Research Council 10.13039/501100000266
Region: Europe
gov (National government)
Labels4
1. UKRI Engineering and Physical Sciences Research Council
2. Engineering and Physical Sciences Research Council - UKRI
3. Engineering & Physical Sciences Research Council
4. EPSRC
Awards1
1. EP/M022706/1
Engineering and Physical Sciences Research Council 10.13039/501100000266
Region: Europe
gov (National government)
Labels4
1. UKRI Engineering and Physical Sciences Research Council
2. Engineering and Physical Sciences Research Council - UKRI
3. Engineering & Physical Sciences Research Council
4. EPSRC
Awards1
1. EP/P025803/1
Royal Society 10.13039/501100000288
Region: Europe
pri (Associations and societies (private and public))
Labels1
1. The Royal Society
Awards1
1. Wolfson Research Merit Award
Royal Society 10.13039/501100000288
Region: Europe
pri (Associations and societies (private and public))
Labels1
1. The Royal Society
Awards1
1. Theo Murphy Blue-Sky Award

BibTeX

@article{Yang_2018, title={Flexo-photovoltaic effect}, volume={360}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.aan3256}, DOI={10.1126/science.aan3256}, number={6391}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Yang, Ming-Min and Kim, Dong Jik and Alexe, Marin}, year={2018}, month=may, pages={904–907} }

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