ВЛИЯНИЕ ХИМИЧЕСКОЙ ОБРАБОТКИ НА ПОВЕРХНОСТНЫЕ СОСТОЯНИЯ И ЭЛЕКТРОФИЗИЧЕСКИЕ ХАРАКТЕРИСТИКИ Au-n-InP СТРУКТУР

Аннотация

The paper reports the results of investigations of chemical processing influence on parameters of Schottky barriers M-InP. The influence was estimated according to CVD and VFD of contacts Аu-n-InP (100) (S = 4,10  2 cm2) formed by the method thermal deposition of Au on substrates n-InP (N = 1018 сm3), 403  423 K. It is shown, that chemical processing is the important factor of control of the superficial proper- ties of InP which effect practically on all parameters of contacts Au-n-InP. At variation of a kind of chemical processing the factor of non-ideality of CVD, Фэф and the voltage of breakdown can change within the lim- б its of 1,06  1,8, 0,35  0,68 eV and 3 10 V, respectively. At the analysis of electric characteristics of con- tacts Au-n-InP it is seen that Schottky barriers received on a surface that was processed in alkaline medium (рН > 7) possess weaker temperature dependence Is . This fact testifies about decreased ФбТ of such contacts.

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