Hall effect and electrical resistivity of ZnO thin films deposited by reactive evaporation
Keywords:
ZnO, thin films, reactive evaporation, Hall effect, electrical resistivityAbstract
In this work, results about theconcerning of themost influential parameter on the figure of meritof ZnO thin films deposited by the reactiveevaporation method are showed. This parameter isthe content of oxygen in the preparation chamber.It was established that the best figure of meritdefined in terms resistivity and the transmittance,is achieved for oxygen contents corresponding to apartial pressure of around 0.3 mbar. This samplespresent simultaneously high transmission (>80%)and high conductivity (>103 (Ωcm)–1), which makethem adequate for being used as transparent electriccontact in thin film solar cells. Special emphasiswas devoted to the determination of the electricalresistivity and carrier density by van der Pauw method.
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References
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2. Calderón, C.; Ortega, A. and Gordillo, G.Desarrollo de sensores de CO2 basados en películasdelgadas de ZnO, Revista Colombiana de Física,Vol. 28 Nº.2 (1996) 107-110.
3. Mandelis, A. and Cristofides, C. Physics,Chemistry and technology of solid state gas devices,Chemical analisys, Vol. 125 (A Wiley-intersciencepublication 1993).
4. Contreras, M. et al. Progress toward 20%eficience in Cu(In, Ga)Se2 thin films solarcells, to be publish in the journal progress inphotovoltaic, 1999.
5. Mesa, F.; Gordillo, G. and Calderón, C. Studyof optical properties ZnO thin films deposited byreactive evaporation, Phy. Stat. Sol, (c) 1, N° S1, S1-S4 (2004)
6. Mesa, F.; Quiñones, C. y Gordillo, G. Diseñoy construcción de un sistema de caracterizacióneléctrica en celdas solares, Rev. Col. de Física Vol.36 (2003).
7. Instruction Manual “Modell 7065 Hall EffectCard” Keithley Instruments, 1986.
8. American Society for Testing and Materials.Annual Book of ASTM Standards, Vol 10.05. 1991.
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2010-12-01
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Hall effect and electrical resistivity of ZnO thin films deposited by reactive evaporation. (2010). Avances: Investigación En Ingeniería, 1(13), 15-19. https://revistas.unilibre.edu.co/index.php/avances/article/view/2681
