THE ENERGY PROFILE OF POLYMORPHOUS PBTE FILMS .2. RECOMBINATION IN HETEROPHASE PBTE FILMS AT HIGH-LEVELS OF OPTICAL-EXCITATION

被引：8

作者：

BALEVA, M ^{[1
]}

MATEEVA, E ^{[1
]}

PETRAUSKAS, M ^{[1
]}

TOMASIUNAS, R ^{[1
]}

MASTEIKA, R ^{[1
]}

机构：

[1] VILNIUS UNIV,VILNIUS 232734,LITHUANIA,USSR

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 46期

关键词：

D O I：

10.1088/0953-8984/4/46/008

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Picosecond photoconductivity measurements of polymorphous PbTe films have been performed. Excess carriers were excited in the films by means of a picosecond YAG:Nd laser with pulse duration t = 12 ps. The instantaneous relaxation times of photoconductivity were obtained as a function of the excess carrier concentration DELTAN from the kinetic analysis. The heterophase junction nature of the comparatively thin (d congruent-to 1 mum) films was confirmed by their high photosensitivity. The junction thickness was evaluated from the interpretation of the instantaneous lifetime dependence on the excess carrier concentrations.

引用

页码：9009 / 9014

页数：6

共 5 条

[1] THE ENERGY PROFILE OF POLYMORPHOUS PBTE FILMS .1. DIRECT ENERGY GAPS IN PBTE HIGH-PRESSURE PHASES AND ENERGIES OF THE HETEROPHASE JUNCTIONS [J].