White radiation upon breakdown of an nSi— pCdiamond heterojunction and upon limiting efficiency of a silicon solar element

White radiation was registered upon breakdown of nSi— pCdiamond heterojunction resulting from collision ionization and recombination of electron-hole pairs without thermalization of an excess energy of electrons. The probabilities of collision ionization and radiation transitions of photoelectrons in the region of a conduction band generated by photons with energy above 2E g and of enhancement of the limiting efficiency of a silicon solar element are discussed.

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