X-Ray-Induced Bulk Photovoltaic Effect in Insulators

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Science  10 Apr 1964:
Vol. 144, Issue 3615, pp. 173-174
DOI: 10.1126/science.144.3615.173


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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