Chemical sensor using chemically induced electron-hole...

Active solid-state devices (e.g. – transistors – solid-state diode – Schottky barrier

Reexamination Certificate

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Reexamination Certificate

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06903433

ABSTRACT:
Electron-hole production at a Schottky barrier has recently been observed experimentally as a result of chemical processes. This conversion of chemical energy to electronic energy may serve as a basic link between chemistry and electronics and offers the potential for generation of unique electronic signatures for chemical reactions and the creation of a new class of solide state chemical sensors. Detection of the following chemical species was established: hydrogen, deuterium, carbon monoxide, molecular oxygen. The detector (1b) consists of a Schottky diode between an Si layer and an ultrathin metal layer with zero force electrical contacts.

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