journal article·2009-12Open access

Light effects of the amorphous indium gallium zinc oxide thin‐film transistor

Keun Woo Lee, Hyun Soo Shin, Kon Yi Heo, Kyung Min Kim, Hyun Jae Kim

Journal of Information Display· Volume 10· Issue 4

Abstract

Abstract The optical and electrical properties of the amorphous indium gallium zinc oxide thin‐film transistor (a‐IGZO TFT) were studied. When the a‐IGZO TFT was illuminated at a wavelength of 660 nm, the off‐state drain current slightly increased, while below 550 nm it increased significantly. The a‐IGZO TFT was found to be extremely sensitive, with deep‐level defects at approximately 2.25 eV near the midgap. After UV light illumination, a slight change occurred on the surface of the a‐IGZO films, such as in terms of the oxygen 1s spectra, resistivity, and carrier concentrations. It is believed that these results will provide information regarding the photo‐induced behaviors in the a‐IGZO films.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Thin-Film Transistor Technologies · ZnO doping and properties · Transition Metal Oxide Nanomaterials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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