Abstract
Spectral dependence of the conductivity of doped Bi12GeO20 crystals were measured at room temperature under the illumination of a constant power density. It was found that the photoconductivity of Bi12GeO20 could be highly suppressed by simultaneous doping of Ga and Ca, which keeps the dark conductivity at a low level. The doped Bi12GeO20 crystals were applied to an electron beam addressed electro-optic light valve. Real-time TV display was accomplished by the light valve built in a sealed-off tube.
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Mori, T., Okamoto, T. & Saito, M. Suppression of the photoconductivity of Bi12GeO20 and its application to electro-optic light valve. J. Electron. Mater. 8, 261–267 (1979). https://doi.org/10.1007/BF02655627
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DOI: https://doi.org/10.1007/BF02655627