Skip to main content Accessibility help
×
Home

Photochemical Processes in Photo-Assisted Epitaxy of CdxHg 1-xTe

  • S J C Irvine (a1), J B Mullin (a1), G W Blackmore (a1), O D Dosser (a1) and H Hill (a1)...

Abstract

Mechanisms for the low temperature photo-dissociation of alkyl precursors for the epitaxial growth of CdxHg1-xTe (CMT) are discussed. The roles of vapour and surface nucleation are considered in the light of the free radical model which also can provide methods for controlling the vapour phase photochemistry. Higher quality CMT has been grown at 250 °C by using dimethyl mercury as a source of free methyl radicals. Problems encountered in reducing growth temperature for multilayer epitaxy are considered for CdTe and HgTe and conditions established for epitaxial growth at 200°C.The roles of alkyl concentration, substrate temperature, UV intensity and free radical concentration are explored. Results on the first reported growth of CdTe deposition using a cw UV laser source are compared with the arc lamp grown layers.

Copyright

References

Hide All
1 Irvine, S J C, Giess, J, Gough, J S, Blackmore, G W, Royle, A, Mullin, J B, Chew, N G and Cullis, A G, J Crystal Growth 77 437 (1986).
2 Irvine, S J C, Mullin, J B, J Vac Sci TechnoT-(to be published).
3 Kisker, D W and Feldman, R D, J Crystal Growth 72 102 (1985).
4 Morris, B J, Appl Phys Lett 48 867 (1986).
5 Ahlgren, W L, Himoto, R H, Sen, S and Ruth, R P, Third International Conference on MOVPE, 13-17 April 1986, Universal City, California.
6 Irvine, S J C, Mullin, J B and Tunnicliffe, J, J Crystal Growth 68 188 (1984).
7 Faurie, J P, Million, A and Piaguet, J, J Crystal Growth 59 10 (1982).
8 Migliorato, P and White, A M, S S Electronics 26 65 (1983).
9 Arch, D K, Faurie, J P, Staudenmann, J L, Hibbs-Brenner, M, Chow, P, J Vac Sci Technol A4 2101 (1986).
10 Mullin, J B and Irvine, S J C, J Vac Sci Technol A 4 700 (1986).
11 Irvine, S J C and Mullin, J B, J Crystal Growth (in-press).
12 Irvine, S J C, Giess, J, Mullin, J B, Blackmore, G W and Dosser, O D, Materials Letters 3 290 (1985).
13 Irvine, S J C, Giess, J, Mullin, J B, Blackmore, G W and Dosser, O D, J Vac Sci Technol B 3 1450 (1985).
14 Avery, A J and Diskett, D.J (private communication).

Photochemical Processes in Photo-Assisted Epitaxy of CdxHg 1-xTe

  • S J C Irvine (a1), J B Mullin (a1), G W Blackmore (a1), O D Dosser (a1) and H Hill (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed