Ammonia Gas Sensing Properties of GeO2:SnO2/Si Thin Films Prepared via Pulsed Laser Deposition. Journal of Physical Science, [S. l.], v. 37, n. 2, p. 103–121, 2026. DOI: 10.21315/jps2026.37.2.7. Disponível em: https://ejournal.usm.my/jps/article/view/jps_vol37-no-2-2026_7.. Acesso em: 6 sep. 2026.