Abstract
PDA(Polydiacetylene)-supramolecules were successfully immobilized on the surface of Sc 2O 3/GaN/Sap-phire structures for use as selective NH 3 gas sensors. The Sc 2O 3 was epitaxially grown on GaN/Sapphire templates by molecular beam epitaxy (MBE) to replace the non-uniform native Ga 2O 3. The GaN-based PDA gas sensors showed excellent selectivity for ammonia detection after the end-functional group was modified to respond to this specific gas species.
Original language | English |
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Pages (from-to) | 3556-3561 |
Number of pages | 6 |
Journal | Physica Status Solidi (A) Applications and Materials Science |
Volume | 204 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2007 Oct |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Materials Chemistry
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering
- Surfaces and Interfaces