Abstract
A metal-oxide material (indium zinc oxide [IZO]) device with near-infrared (NIR) laser annealing was demonstrated on both glass and bendable plastic substrates (polycarbonate, polyethylene, and polyethylene terephthalate). After only 60 s, the sheet resistance of IZO films annealed with a laser was comparable to that of thermal-annealed devices at temperatures in the range of 200-300 °C (1 h). XPS, ATR, and AFM were used to investigate the changes in the sheet resistance and correlate them to the composition and morphology of the thin film. Finally, the NIR-laser-annealed IZO films were demonstrated to be capable of detecting changes in humidity and serving as a highly sensitive gas sensor of hydrogen sulfide (in ppb concentration), with room-temperature operation on a bendable substrate.
Original language | English |
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Pages (from-to) | 24984-24991 |
Number of pages | 8 |
Journal | ACS Applied Materials and Interfaces |
Volume | 12 |
Issue number | 22 |
DOIs | |
Publication status | Published - 2020 Jun 3 |
Keywords
- IZO
- NIR
- flexible
- gas sensor
- laser annealing
- sol-gel
ASJC Scopus subject areas
- General Materials Science