Luminescence properties of ZnO-M heterostructures fabricated by galvanic-submerged photosynthesis of crystallites
作者： Kento Hiraiwa , Yuki Takahashi , Junichi Mizuno , Melbert Jeem , Seiichi Watanabe
DOI: 10.1016/J.APSUSC.2019.05.292
关键词:
摘要: Abstract By adapting hetero-nanostructures in optoelectronic device, a prominent luminescence characteristic can be obtained. The challenge is to engineer the band bending if semiconducting surface gets contact with metal. A galvanic replacement method versatile for bimetallic synthesis. However, nanostructures morphologies varied depending on metals pair or their supporting template. In this study, we demonstrate facile 1-D ZnO nanorods (NRs) growth fabricated by reactions. Without using solution, reaction was implemented joining Zn metal Au, Pt, Ag, Cu, W, and Ni substrate. properties of NRs were characterized photoluminescence (PL) cathodoluminescence scanning transmission electron microscopy (STEM-CL). Based PL analysis result, oxygen vacancy (VO) responsible visible light region emission all ZnO-M samples. Then, STEM-CL highlighted presence zinc interstitial (Zni) at interface ZnO-M. Due bending, interaction between VO Zni resulted formation antisite (ZnO) interface. There no shift due Fermi-level pinning. findings will useful future large-scale synthesis engineering luminescent devices.
sci-hub.se 参考文章(59)
Melbert Jeem, Muhammad Rafiq Mirza bin Julaihi, Junya Ishioka, Shigeo Yatsu, Kazumasa Okamoto, Tamaki Shibayama, Tomio Iwasaki, Takahiko Kato, Seiichi Watanabe, A pathway of nanocrystallite fabrication by photo-assisted growth in pure water. Scientific Reports. ,vol. 5, pp. 11429- 11429 ,(2015) , 10.1038/SREP11429
Aleksandra B. Djurišić, Xiang Liu, Yu Hang Leung, Zinc oxide films and nanomaterials for photovoltaic applications Physica Status Solidi-rapid Research Letters. ,vol. 8, pp. 123- 132 ,(2014) , 10.1002/PSSR.201300103
J. El Ghoul, C. Barthou, L. El Mir, Synthesis by sol–gel process, structural and optical properties of nanoparticles of zinc oxide doped vanadium Superlattices and Microstructures. ,vol. 51, pp. 942- 951 ,(2012) , 10.1016/J.SPMI.2012.03.013
B.G. Baker, B.B. Johnson, G.L.C. Maire, Photoelectric work function measurements on nickel crystals and films Surface Science. ,vol. 24, pp. 572- 586 ,(1971) , 10.1016/0039-6028(71)90282-2
G. N. Derry, Zhang Ji-Zhong, Work function of Pt(111). Physical Review B. ,vol. 39, pp. 1940- 1941 ,(1989) , 10.1103/PHYSREVB.39.1940
Bixia Lin, Zhuxi Fu, Yunbo Jia, Green luminescent center in undoped zinc oxide films deposited on silicon substrates Applied Physics Letters. ,vol. 79, pp. 943- 945 ,(2001) , 10.1063/1.1394173
V. Dose, W. Altmann, A. Goldmann, U. Kolac, J. Rogozik, Image-Potential States Observed by Inverse Photoemission Physical Review Letters. ,vol. 52, pp. 1919- 1921 ,(1984) , 10.1103/PHYSREVLETT.52.1919
John Robertson, Disorder, band offsets and dopability of transparent conducting oxides Thin Solid Films. ,vol. 516, pp. 1419- 1425 ,(2008) , 10.1016/J.TSF.2007.03.092
Chunyang Zhou, Lin Xu, Jian Song, Ruiqing Xing, Sai Xu, Dali Liu, Hongwei Song, Ultrasensitive non-enzymatic glucose sensor based on three-dimensional network of ZnO-CuO hierarchical nanocomposites by electrospinning Scientific Reports. ,vol. 4, pp. 7382- 7382 ,(2015) , 10.1038/SREP07382
D. E. Motaung, G. H. Mhlongo, S. S. Nkosi, G. F. Malgas, B. W. Mwakikunga, E. Coetsee, H. C. Swart, H. M. I. Abdallah, T. Moyo, S. S. Ray, Shape-selective dependence of room temperature ferromagnetism induced by hierarchical ZnO nanostructures. ACS Applied Materials & Interfaces. ,vol. 6, pp. 8981- 8995 ,(2014) , 10.1021/AM501911Y