Room temperature sensitivity of Ta doped nanocrystalline ZnO films to NH3 exposureNichev, H.; Angelov, O.; Kamenova, M.; Mikli, Valdek; Dimova-Malinovska, D.Journal of optoelectronics and advanced materials2009 / 10, p. 1371-1374 https://www.researchgate.net/publication/290261533_Room_temperature_sensitivity_of_Ta_doped_nanocrystalline_ZnO_films_to_NH3_exposure