Pyroelectric photodetector based on ferroelectric crystal-semiconductor thin film heterostructure

Armen Poghosyan; N. R. Aghamalyan; R. Guo; R. K. Hovsepyan; E. S. Vardanyan

doi:10.1117/12.863037

18 August 2010 Pyroelectric photodetector based on ferroelectric crystal-semiconductor thin film heterostructure

Armen Poghosyan, N. R. Aghamalyan, R. Guo, R. K. Hovsepyan, E. S. Vardanyan

Proceedings Volume 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV; 778117 (2010) https://doi.org/10.1117/12.863037
Event: SPIE Photonic Devices + Applications, 2010, San Diego, California, United States

Abstract

Very important advantage of ZnO thin films is an opportunity of use in the composite heterostructures opening opportunities for development of ZnO-based optoelectronics devices. In this work we report the preparation of ferroelectric crystal - ZnO thin film heterostructures by vacuum deposition method and creation of new type of pyroelectric photodetector. The ferroelectric field effect transistor has been prepared using ZnO:Li films as transistor channel and LiNbO3 and TGS crystals as pyroelectric sensitive element. The photoelectric properties (currents ratio, charge carriers mobility, ampere-watt sensitivity in IR diapason, NEP sensitivity, and photocurrent kinetics) of prepared heterostructures were investigated and first samples of novel pyroelectric photodetector with high sensitivity and detectability were prepared.

Citation Download Citation

Armen Poghosyan, N. R. Aghamalyan, R. Guo, R. K. Hovsepyan, and E. S. Vardanyan "Pyroelectric photodetector based on ferroelectric crystal-semiconductor thin film heterostructure", Proc. SPIE 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV, 778117 (18 August 2010); https://doi.org/10.1117/12.863037

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