Band gap widening and narrowing in moderately and heavily doped n-ZnO films

Solid-State Electronics

Volumn 50, Issue 7-8, 2006, Pages 1420-1424

  Jain, Anubha ^a   Sagar, P ^a   Mehra, R M ^a  

^a UNIVERSITY OF DELHI   (India)

Author keywords

Band gap narrowing; Band gap widening; Doped ZnO films; Sol gel technique; Sputtering technique

Indexed keywords

CARRIER CONCENTRATION; DOPING (ADDITIVES); ELECTRIC CONDUCTIVITY; LIGHT TRANSMISSION; SEMICONDUCTOR MATERIALS; SOL-GELS; SPUTTER DEPOSITION; YTTRIUM COMPOUNDS; ZINC OXIDE;

BAND GAP NARROWING; BAND GAP WIDENING; DOPED ZNO FILMS; SPUTTERING TECHNIQUE;

THIN FILMS;

EID: 33747190590     PISSN: 00381101     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.sse.2006.07.001     Document Type: Article

References (24)

1. Sernelius B.E., Berggren K.F., Jin Z.C., Hamberg I., and Granqvist C.G. Band-gap tailoring of ZnO by means of heavy Al doping. Phys Rev B 37 (1988) 17
2. i-x strained layers. Solid State Electron 34 (1991) 453-465
3. Pearton S.J., Norton D.J., Ip K., Heo Y.W., and Steiner T. Recent progress in processing and properties of ZnO. Prog Mater Sci 50 (2005) 293-340
4. Jimenez-Gonzalez A.E., Jose A., Soto U., and Suarez-parra R. Optical and electrical characteristics of aluminum-doped ZnO thin films prepared by solgel technique. J Cryst Growth 192 (1998) 430-438
5. Look D.C., Reynolds D.C., Sizelove J.R., Jpnes R.L., Litton C.W., Cantwell G., Harch W.C., et al. Electrical properties of bulk ZnO. Solid state Commun 105 (1998) 399-401
6. Tang Z.C., Wong G.K.L., Yu P., Kawasaki M., Ohtomo A., Koinuma H., et al. Room-temperature ultraviolet laser emission from self-assembled ZnO microcrystallite thin films. Appl Phys Lett 72 (1998) 3270
7. Lee C., Lim K., and Song J. UV, violet and blue-green luminescence from RF sputter deposited ZnO:Al thin films. Sol Energy Mater Sol Cells 43 (1996) 37
8. 2 thin-film solar cells with an efficiency of 18%. Sol Energy Mater Sol Cells 67 (2001) 331-335
9. Matsubara K., Fons P., Iwata K., Yamada A., Sakurai K., Tampo H., Niki S., et al. ZnO transparent conducting films deposited by pulsed laser deposition for solar cell applications. Thin Solid Films 431 (2003) 369-372
10. Major S., Banerjee A., and Chopra K.L. Highly transparent and conducting indium-doped zinc oxide films by spray pyrolysis. Thin Solid Films 143 (1986) 19-30
11. Major S., Banerjee A., and Chopra K.L. Thickness-dependent properties of indium-doped ZnO films. Thin Solid Films 108 (1983) 333
12. Tadatsugu M., Takashi Y., and Toshihiro M. Highly transparent and conductive rare earth-doped ZnO thin films prepared by magnetron sputtering. Thin Solid films 366 (2000) 63
13. Singh A.V., Mehra R.M., Wakahara A., and Yoshida A. Doping mechanism in Al doped ZnO films. J Appl Phys 95 (2004) 3640-3643
14. Ravinder K., Singh A.V., and Mehra R.M. Structural electrical and optical properties of sol-gel derived yttrium doped ZnO films. Phys Status Solidi (a) 206 (2005) 1053
15. Valle G.G., Hammer P., Pulcinelli S.H., and Santilli C.V. Transparent and conductive ZnO:Al thin films prepared by Sol gel dip coating. J Eur Ceram Soc 24 (2004) 1009
16. Hideaki A., Akio S., Tatsuhiko M., Takanori A., and Masahiro O. Low resistivity transparent conducting Al-doped ZnO films prepared by pulsed laser deposition. Thin Solid Films 445 (2003) 263
17. Znaidi L., Solar Illa G.J.A.A., Benyahia S., and Kanaev A.V. Oriented ZnO thin films synthesis by sol-gel process for laser application. Thin Solid Films 428 (2003) 257-262
18. Minami T., Nanto H., and Takata S. Optical properties of Al doped ZnO thin films prepared by RF magnetron sputtering. Jpn J Appl Phys 24 (1985) 605-607
19. Mahan G.D. Energy gap in Si and Ge: impurity dependence. J Appl Phys 51 (1980) 2634-2646
20. Haas C. Infrared absorption in heavily doped n-type germanium. Phys Rev 125 (1962) 1965-1971
21. Abram R.A., Rees G.J., and Wilson B.L.H. Heavily doped semiconductors and devices. Adv Phys 27 (1978) 799-892
22. Sernelius B.E. Self-energy shifts in heavily doped, polar semiconductors. Phys Rev B 36 (1987) 4878-4887
23. Landwehr G., Waag A., Fischer F., Lugauer H.J., and Schiill K. Blue emitting heterostructure laser diodes. Physica E 3 (1998) 158
24. Sagar P., kumar M., and Mehra R.M. Influence of hydrogen incorporation in sol-gel derived aluminum doped ZnO thin films. Thin solid films 94 (2005) 489