Metal Oxide Thin Film Phototransistor for Remote Touch Interactive Displays

• DOI: 10.1002/adma.201200293
• Publication Date: 2012-04-13T08:36:34Z
• Authors: Seung‐Eon Ahn; Ihun Song; Sanghun Jeon; Youg Woo Jeon; Young Kim; Changjung Kim; Byungki Ryu; Je‐Hun Lee; Arokia Nathan; Sungsik Lee; Gyu Tae Kim; U‐In Chung
• Keywords: Photodiode

The photoresponse characteristics of metal-oxide (MeO) semiconductor photosensors have been studied. Compared to the amorphous-Si-based photo-TFT, MeO photo-TFT demonstrates superior EQE and responsivity. However, due its inherent slow recovery dark state after illumination is stopped, a unique sensing scheme suitable for high-speed array operation used, yet maintaining simple architecture as solution large-area interactive displays.