Optical characterization of low optical thickness thin films from transmittance and back reflectance measurements

被引:70
作者
Laaziz, Y
Bennouna, A
Chahboun, N
Outzourhit, A
Ameziane, EL
机构
[1] LPSCM, Fac Sci Semlalia, Dept Phys, Marrakech 40000, Morocco
[2] Ecole Natl Sci Apliquees Tanger, Tanger, Morocco
关键词
thin films; thickness; transmittance; reflectance;
D O I
10.1016/S0040-6090(00)00997-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work a method for the determination of the thickness and optical properties of low optical thickness films (D < 600 nm), from the experimental transmittance (T) and back reflectance (R') measurements, is proposed. An original analytical formulation without any kind of approximation is employed for the computations. The computing algorithm is presented in detail and an error study is given. The method is applied for the characterization of sputtered CdTe and a-Si thin films of optical thickness in the range of 250 nm. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:149 / 155
页数:7
相关论文
共 21 条
[1]   THE INFLUENCE OF THICKNESS AND INDEX INHOMOGENEITIES ON THE TRANSMISSION OF SEMICONDUCTOR THIN-FILMS [J].
BENNOUNA, A ;
LAAZIZ, Y ;
IDRISSI, MA .
THIN SOLID FILMS, 1992, 213 (01) :55-63
[2]   AUTOMATIC-DETERMINATION OF THE OPTICAL-CONSTANTS OF INHOMOGENEOUS THIN-FILMS [J].
BORGOGNO, JP ;
LAZARIDES, B ;
PELLETIER, E .
APPLIED OPTICS, 1982, 21 (22) :4020-4029
[3]   METHOD FOR THE DETERMINATION OF OPTICAL-CONSTANTS OF THIN-FILMS - DEPENDENCE ON EXPERIMENTAL UNCERTAINTIES [J].
DELPOZO, JM ;
DIAZ, L .
APPLIED OPTICS, 1992, 31 (22) :4474-4481
[4]   DETERMINATION OF OPTICAL-CONSTANTS OF THIN-FILMS FROM MEASUREMENTS OF REFLECTANCE AND TRANSMITTANCE AT NORMAL INCIDENCE [J].
DENTON, RE ;
TOMLIN, SG ;
CAMPBELL, RD .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1972, 5 (04) :852-&
[5]   ON THE DETERMINATION OF THE OPTICAL-CONSTANTS N(LAMBDA) AND ALPHA(LAMBDA) OF THIN SUPPORTED FILMS [J].
ELIZALDE, E ;
RUEDA, F .
THIN SOLID FILMS, 1984, 122 (01) :45-57
[6]  
KHAIDAR M, 1989, J APPL PHYS, V65, P3238
[7]   DETERMINATION OF THE OPTICAL-CONSTANTS (N, K) OF THIN DIELECTRIC FILMS [J].
KHAWAJA, EE ;
BOUAMRANE, F .
APPLIED OPTICS, 1993, 32 (07) :1168-1172
[8]   On some important care to take when making spectrophotometric measurements on semiconductor thin films [J].
Laaziz, Y ;
Bennouna, A .
THIN SOLID FILMS, 1996, 277 (1-2) :155-161
[9]   THE EFFECT OF ANNEALING ON THE OPTICAL AND ELECTRICAL-PROPERTIES OF A-SI-H SPUTTERED FILMS [J].
LAAZIZ, Y ;
BENNOUNA, A ;
AMEZIANE, EL .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1993, 31 (01) :23-32
[10]   A method for monitoring the thickness of semiconductor and dielectric thin films: Application to the determination of large-area thickness profiles [J].
Laaziz, Y ;
Bennouna, A ;
Elazhari, MY ;
RamiroBargueno, J ;
Outzourhit, A ;
Chahboun, N ;
Ameziane, EL .
THIN SOLID FILMS, 1997, 303 (1-2) :255-263