Coherently coupled ZnO and VO2 interface studied by photoluminescence and electrical transport across a phase transition

Autor:	Thirumalai Venkatesan, S. Dhar, Zhiqi Liu, Jun Ding, T. S. Herng, Bao Nina, Surajit Saha, Ariando, Amar Srivastava, Anil Annadi, N. Naomi
Rok vydání:	2012
Předmět:	Phase transition Materials science Photoluminescence Physics and Astronomy (miscellaneous) business.industry Wide-bandgap semiconductor Overlayer Hysteresis Sapphire Optoelectronics Metal–insulator transition Luminescence business human activities circulatory and respiratory physiology
Zdroj:	Applied Physics Letters. 100:241907
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.4729387
Popis:	We have investigated the photoluminescence and electrical properties of a coherently coupled interface consisting of a ZnO layer grown on top of an oriented VO2 layer on sapphire across the phase transition of VO2. The band edge and defect luminescence of the ZnO overlayer exhibit hysteresis in opposite directions induced by the phase transition of VO2. Concomitantly the phase transition of VO2 was seen to induce defects in the ZnO layer. Such coherently coupled interfaces could be of use in characterizing the stability of a variety of interfaces in situ and also for novel device application.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0108ca10ce4cb925f0afc65c6272077e https://doi.org/10.1063/1.4729387 Zobrazit plný text záznamu