TY  - JOUR
T1  - Leakage Current Density and Characteristic Temperature Determination for PbSe/PbSrSe Multiple Quantum Well Structure
AU - Khodr, Majed 
JO  - Journal of Engineering and Applied Sciences
VL  - 11
IS  - 1
SP  - 75
EP  - 77
PY  - 2016
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2016.75.77
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2016.75.77
KW  - Characteristic temperature
KW  -thermionic emission
KW  -leakage current
KW  -lead salts
KW  -cavity
AB  - The characteristic temperature calculations and dependency on quantum efficiency was analyzed for Pb<SUB>0.934</SUB> Sr<SUB>0.066</SUB> Se multiple quantum well structure at three temperature ranges; 77 K&le;T<SUB>0</SUB>&le;150 K, 150&le;T<SUB>0</SUB>&le;300 K and 77 K&le;T<SUB>0</SUB>&le;300 K. Inclusion of theoretical values for the quantum efficiency due to auger recombination and leakage current reduces the characteristic Temperature (T<SUB>0</SUB>) in these ranges. We compared the effects of including the theoretical quantum efficiency and an experimentally determined ones on the characteristic temperature values at a fixed cavity length of 600 &#956;m. When results were compared to experimental data, it was concluded that there is a leakage current above the barrier due to thermionic emissionin the high temperature range 150&le;T<SUB>0</SUB>&le;300 K. We estimated these additional values to be 246, 1353 and 5423 A cm<SUP>&#150;2</SUP> at 200, 250 and 300 K, respectively. These are high values and hence, more work is needed to understand the thermionic emission process to improve on the performance of this material system and similar ones.
ER  -