Browse Publications Technical Papers 2002-01-2266
2002-07-15

Thin Film Optical Detectors (TOD) for Retinal Implantation – A “Bionic” Eye 2002-01-2266

A new ceramic optical microdetector has been developed for retinal implant as a direct replacement for damaged retinal photo-detectors in patients. The thin film optical detector (TOD) is a heterostructure device composed of an atomically ordered La-doped PbZrTiO3 (PLZT) layer epitaxially grown on an atomically ordered Pt thin film layer. The TOD has an optical response which overlaps that of the eye, and generates a local photovoltage which is expected to excite neighboring cells resulting in transmission of signals to the brain.

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