Open AccessОптические и электронные свойства пассивированных поверхностей InP(001)
Author(s) -
P. A. Dementev,
E. V. Dementeva,
T. V. L’vova,
V. L. Berkovits,
М. В. Лебедев
Publication year - 2021
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2021.08.51129.05
Subject(s) - passivation , aqueous solution , band bending , surface photovoltage , sulfide , materials science , ammonium , chemistry , analytical chemistry (journal) , optoelectronics , nanotechnology , layer (electronics) , physics , chromatography , quantum mechanics , organic chemistry , metallurgy , spectroscopy
The effect of chemical passivation in solutions of ammonium sulfide (NH4)2S on the optical and electronic properties of the n-InP (001) surface has been studied. It has been shown that treatment in a 4% aqueous solution of (NH4)2S leads to a decrease of surface band bending and localized charges in near-surface region in the 2 times. Processing in a 4% alcoholic solution of (NH4)2S leads to a decrease in these parameters in 3 times, and moreover, the barrier photovoltage and also reduces in three times.