negative electron-affinity material

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negative electron-affinity material [′neg·əd·iv i′lek‚trän ə′fin·əd·ē mə‚tir·ē·əl]

(electronics)

A material, such as gallium phosphide, whose surface has been treated with a substance, such as cesium, so that the surface barrier is reduced, band-bending occurs so that the top of the conduction band lies above the vacuum level, and the electron affinity of the substance in negative. Abbreviated NEA material.

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No references found			Nefud NEG Negation negation by failure Negation of the Negation, Law of the Negative negative acceleration negative acknowledgement negative afterimage negative angle negative area negative bending moment negative binomial distribution negative booster Negative Booster Transformer negative catalysis negative charge negative conductor negative correlation negative crystal negative easement negative effective mass amplifiers and generators negative electricity negative electrode negative electron negative electron-affinity material negative element negative elongation negative empathy negative equity negative feedback negative friction negative g negative gene control negative glow negative impedance negative indication negative integer negative interference negative ion negative landform negative lens negative logic negative meniscus lens negative mirror negative modulation negative movement negative nodal points negative number negative part negative pedal			Negative credit rating Negative crystal Negative crystal Negative declaration Negative declaration Negative declaration negative declination negative defect negative defect negative defect negative defect Negative Delta V Negative differential resistance Negative differential resistance Negative differential resistance Negative duration Negative Durations Negative dynamic resistance Negative dynamic resistance negative easement negative easement Negative edge pool Negative edge pool negative effective mass amplifiers and generators negative electricity negative electricity negative electrode negative electrode negative electron Negative Electron Affinity negative electron-affinity material negative element negative elongation Negative Emitter Coupled Logic negative emotion negative empathy negative end-expiratory pressure negative end-expiratory pressure negative end-expiratory pressure Negative Enhanced Imaging Technology Negative entropy Negative equity Negative equity Negative equity negative equity loans negative eugenics negative eugenics negative eugenics negative evidence Negative Exploitation Feedback Negative Exponents Negative externalities Negative externalities Negative externality Negative externality Negative Extra-Thoracic Pressure Ventilation Negative eyepiece Negative Feed-Forward Loop negative feedback negative feedback negative feedback

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