Influence of Irradiation Time on Structural, Morphological Properties of ZnO-NRs Films Deposited by MW-CBD and Their Photodiode Applications

Autor: Saliha Ilican, Mujdat Caglar, Kamuran Gorgun, Yasemin Caglar
Přispěvatelé: Anadolu Üniversitesi, Fen Fakültesi, Fizik Bölümü, Ilıcan, Saliha, Çağlar, Yasemin, Çağlar, Müjdat
Rok vydání: 2017
Předmět:
Zdroj: Journal of Nanomaterials, Vol 2017 (2017)
ISSN: 1687-4129
1687-4110
DOI: 10.1155/2017/6308174
Popis: WOS: 000409226400001
Microwave-assisted chemical bath deposition (MW-CBD) was used to deposit zinc oxide nanorods (ZnO-NRs) films by using different microwave irradiation time. The films exhibit a good crystallinity having a hexagonal wurtzite phase formation. Although the dominant preferred orientation was not observed for the ZnO-5 and ZnO-10, ZnO-8 showed (002) preferred orientation. The emission scanning electron microscope (FESEM) showed almost randomly oriented hexagonal nanorods on the surface. A slight decrease in the length of the observed hexagonal nanorods due to the increase in the irradiation time was observed, changing from 550 nm to 300 nm. The p-Si/n-ZnO-NRs heterojunction photodiodes were fabricated. The current-voltage characteristics of these photodiodes were investigated under dark and different illumination intensity. An increase in the reverse current with increasing illumination intensity confirmed that the fabricated photodiodes exhibited a photoconducting behavior. In addition, the barrier height and series resistance values of the photodiodes were determined from capacitance-voltage measurements.
Anadolu University Commission of Scientific Research Projects [1305F082, 1402F055]
This work was supported by Anadolu University Commission of Scientific Research Projects under Grant nos. 1305F082 and 1402F055.
Databáze: OpenAIRE
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