The minority carrier lifetime in doped and undoped p-type Hg0.78Cd0.22Te liquid phase epitaxy films

1995 ◽  
Vol 24 (5) ◽  
pp. 539-544 ◽  
Author(s):  
M. C. Chen ◽  
L. Colombo ◽  
J. A. Dodge ◽  
J. H. Tregilgas
2005 ◽  
Vol 98 (7) ◽  
pp. 073708 ◽  
Author(s):  
Yusuke Satoh ◽  
Noritaka Usami ◽  
Wugen Pan ◽  
Kozo Fujiwara ◽  
Kazuo Nakajima ◽  
...  

1986 ◽  
Vol 90 ◽  
Author(s):  
J. S. Chen ◽  
J. Bajaj ◽  
W. E. Tennant ◽  
D. S. Lo ◽  
M. Brown ◽  
...  

ABSTRACTMinority carrier lifetime measurements at 77K were carried out in ptype liquid phase epitaxial (LPE) Hg 1-xCdx Te/CdTe (x = 0.22) using the photoconductive decay technique. Lifetimes of 20 to 7000 ns were obtained in samples with hole concentrations, p, in the range 1014 to 1016 cm-3. The hole concentrations were determineg by analyzing the Hall data using a double-layer model. It was found that the minority carrier lifetime is inversely proportional to p01.86. This result demonstrates that the Auger mechanism may be the dominant recombination process in p-type LPE Hg0.78 Cd0.22Te/CdTe. The temperature dependence of minority carrier lifetime was also measured between 10 and 200K for several samples.


2013 ◽  
Vol 440 ◽  
pp. 82-87 ◽  
Author(s):  
Mohammad Jahangir Alam ◽  
Mohammad Ziaur Rahman

A comparative study has been made to analyze the impact of interstitial iron in minority carrier lifetime of multicrystalline silicon (mc-Si). It is shown that iron plays a negative role and is considered very detrimental for minority carrier recombination lifetime. The analytical results of this study are aligned with the spatially resolved imaging analysis of iron rich mc-Si.


2001 ◽  
Vol 45 (12) ◽  
pp. 1973-1978 ◽  
Author(s):  
Mohamed Hilali ◽  
Abasifreke Ebong ◽  
Ajeet Rohatgi ◽  
Daniel L Meier

2021 ◽  
Vol 119 (18) ◽  
pp. 182106
Author(s):  
K. Shima ◽  
R. Tanaka ◽  
S. Takashima ◽  
K. Ueno ◽  
M. Edo ◽  
...  

2011 ◽  
Vol 110 (5) ◽  
pp. 053713 ◽  
Author(s):  
J. D. Murphy ◽  
K. Bothe ◽  
M. Olmo ◽  
V. V. Voronkov ◽  
R. J. Falster

2009 ◽  
Vol 615-617 ◽  
pp. 295-298 ◽  
Author(s):  
Laurent Ottaviani ◽  
Olivier Palais ◽  
Damien Barakel ◽  
Marcel Pasquinelli

We report on measurements of the minority carrier lifetime for different epitaxial 4H-SiC layers by using the microwave photoconductivity decay (µ-PCD) method. This is a non-contacting, non-destructive method very useful for the monitoring of recombination processes in semiconductor material. Distinct samples have been analyzed, giving different lifetime values. Transmittance and absorption spectra have also been carried out. The n-type layers, giving rise to a specific absorption peak near 470 nm, are not sensitive to optical excitation for the used wavelengths, as opposite to p-type layers whose lifetime values depend on thickness and doping.


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