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Science 10 April 1964:
Vol. 144. no. 3615, pp. 173 - 174
DOI: 10.1126/science.144.3615.173
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Articles

X-Ray-Induced Bulk Photovoltaic Effect in Insulators

S. I. Taimuty 1, L. Feinstein 1, and S. D. Softky 1

1 Stanford Research Institute, Menlo Park, California

When an insulator, sandwiched between metals of dissimilar work functions, is irradiated with x-radiation, a voltage related to the contact potential difference of the metals is observed. This phenomenon, known as the bulk photovoltaic effect, has been demonstrated in a variety of metal-insulator-metal combinations. Evidence that the voltage is not generated by junctions, barrier layers, or simillar other phenomena is presented.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)