Preparation And Investigation Of Hybrid CdS Film Devices

Ch. Bouchenaki; J.-Y. Bigot; A. Daunois; J.-P. Zielinger; J.-L. Loison; H. Nguyen Cong; P. Chartier

doi:10.1117/12.961393

22 December 1989 Preparation And Investigation Of Hybrid CdS Film Devices

Ch. Bouchenaki, J.-Y. Bigot, A. Daunois, J.-P. Zielinger, J.-L. Loison, H. Nguyen Cong, P. Chartier

Proceedings Volume 1127, Nonlinear Optical Materials II; (1989) https://doi.org/10.1117/12.961393
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

Optimization of photothermal CdS SEED's for better performance depends to a great extent on the possibility of improving the optical, electrical and photoelectrical properties of thin layers deposited on various substrates. Some fundamental aspects of this problem are discussed. Three alternatives have been explored : evaporated, epitaxial and spray deposited layers. The physical properties (X-ray diffraction, optical absorption, electrical and photoelectrical conductivity) and their influence on the bistability effects were investigated. Films epitaxial grown on CaF2 by the close space vapour transport technique showed excellent properties. Nevertheless only a short-lived bistability could be observed. Vacuum evaporated layers showed poor physical characteristics. The optical properties could be significantly improved by air annealing, but it was possible to observe all-optical bistability only. The best results were obtained with spray deposited air-annealed films. The four SEED - characteristics could be observed. The opto-electrical and purely electrical hysterisis loops are comparable or better than for CdS platelets.

Citation Download Citation

Ch. Bouchenaki, J.-Y. Bigot, A. Daunois, J.-P. Zielinger, J.-L. Loison, H. Nguyen Cong, and P. Chartier "Preparation And Investigation Of Hybrid CdS Film Devices", Proc. SPIE 1127, Nonlinear Optical Materials II, (22 December 1989); https://doi.org/10.1117/12.961393

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