| 摘要 |
1,145,582. Electroluminescence. RADIO CORPORATION OF AMERICA. 3 July, 1967 [2 Nov., 1966], No. 30548/67. Heading C4S. A light radiating device comprises a body 10 of N-type GaAs having a resistivity of 0À01 to 0À1 ohm cm. and a mobility of about 5000 cm.<SP>2</SP>/ volt sec. and means 13 for applying an electric field exceeding a threshold value whereby light is emitted from the body. A pulse generator 13 is connected across a GaAs element doped with Se or Sn. The device may be used in pulse-codemodulated communication systems, surveillance and mapping radar or for sensing non-turbulent air if infra-red radiation is emitted. |
