...When an image is projected onto a thin film of charged selenium, the electrical conductivity of the areas exposed to light increases and the charge is lost. This is exploited by sprinkling charged carbon powder on the film to copy the image, which is then transferred to paper and heated for fixation. Recently, there has been much research into amorphous chalcogenide glass semiconductors, which contain large amounts of selenium along with arsenic, tellurium, sulfur, germanium, etc. For example, if a glassy film of As-Se-Te is sandwiched between a Sb 2 S 3 film and a SnO 2 film and a high voltage is applied, and a light image is projected onto it, current flows only in the areas exposed to light, and a charge image corresponding to the light image is obtained on the Sb 2 S 3 film. ... *Some of the terminology used to refer to "amorphous chalcogenide glass semiconductor" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは帯電したセレンの薄い膜の上に画像を投映すると,光の当たった部分は電気伝導度が大きくなって電荷が失われることを利用し,これに帯電したカーボン粉末をふりかけて像を写しとり,さらに紙に転写して加熱定着するものである。最近ではヒ素,テルル,硫黄,ゲルマニウムなどとともにセレンを多量に含むアモルファスカルコゲンガラス半導体の研究が盛んである。たとえばAs‐Se‐Teのガラス状膜をSb2S3膜とSnO2の膜で挟んで高電圧をかけておき,これに光像を結ばせると,光の当たった部分だけに電流が流れてSb2S3膜上に光像に対応した電荷の像が得られる。… ※「アモルファスカルコゲンガラス半導体」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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