Abstract
The compositional optimization of infrared-transparent conducting oxides was performed using high throughput screening of combinatorial libraries. Complete ternary composition spreads of NiO-Mn 2 O 3 -Co 3 O 4 alloys were deposited onto conducting Nb-doped SrTiO 3 substrates using the pulsed laser deposition technique. Resistance-temperature relations of each composition in the spread were determined using a custom-designed scanning probe. The binary NiCo 2 O 4 oxide showed the lowest electrical resistivity of about 0.1 Ω cm but unacceptably large resistance-temperature dependence (3.5%/°C). Electrically conducting ternary alloys along the line Mn 0.45 Ni 0.63 Co 1.92 O 4 -Mn 0.60 Ni 0.72 Co 1.68 O 4 -Mn 0.69 Ni 0.81 Co 1.50 O 4 exhibited much lower temperature sensitivity (of about 1.5%/°C) as well as electrical resistance comparable to that of NiCo 2 O 4 . From this screening we propose new compounds for the thin-film ITCO sensors.
Original language | English |
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Pages (from-to) | 3828-3832 |
Number of pages | 5 |
Journal | Applied Surface Science |
Volume | 252 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2006 Mar 15 |
Externally published | Yes |
Keywords
- Composition spreads
- High-throughput combinatorial methods
- Infrared-transparent oxide (ITCO)
- PLD
- Scanning probe
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films