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- W2290400056 abstract "Publisher Summary This chapter analyzes electron emission from forward-biased p-n junctions. A major limitation of all low–light-level television camera tubes is beam-discharge lag. This is because of the exponential tail in the energy distribution of the electrons from a conventional thermionic cathode. To reduce this lag, an electron beam with a sharp high-energy cut-off must be employed. Shallow diffusion techniques have produced suitable p-n conjunctions in GaAs 0.6 P 0.4 to yield electron-emitting devices when surface treated with cesium and oxygen. Emission current levels of 10 mA/cm 2 and device efficiencies of 0.1% are both capable of at least one and possibly two orders of magnitude improvement. Energy distributions show a 30% reduction in overall spread compared with conventional thermionic cathodes with encouraging life-test performance and, as processing procedures are optimized, improvements in these characteristics should follow. Hence, the preliminary results for the emitter are encouraging. The processing technique is compatible with camera-tube processing procedures, and with improved current levels and their inherently lower power consumption, these devices should contribute to future low–light-level television camera tubes." @default.
- W2290400056 created "2016-06-24" @default.
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- W2290400056 date "1972-01-01" @default.
- W2290400056 modified "2023-09-23" @default.
- W2290400056 title "Electron Emission from Forward Biased p-n Junctions" @default.
- W2290400056 cites W2047205003 @default.
- W2290400056 doi "https://doi.org/10.1016/s0065-2539(08)61322-0" @default.
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