Electrical and photoelectric properties of transparent Li-doped ZnO/ZnO homojunctions by pulsed laser deposition

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• 作者：Shihui Yu ; Linghong Ding ; Haiwu Zheng ; Chuang Xue ; Li Chen ; Weifeng Zhang
• 关键词：Photovoltaic response ; Zinc oxide ; Lithium-doped zinc oxide ; Homojunctions ; Pulsed laser deposition
• 刊名：Thin Solid Films
• 出版年：2013
• 出版时间：1 July, 2013
• 年：2013
• 卷：540
• 期：Complete
• 页码：146-149
• 全文大小：553 K

文摘

(002)-Preferred orientation ZnO and Li-doped ZnO thin films on glass substrates and Li-doped ZnO/ZnO bilayers on fluorine-doped SnO₂ glass substrates are grown by pulsed laser deposition technique. These films are characterized by X-ray diffraction, UV-visible transmission spectroscopy, surface photovoltage spectroscopy, and electric measurements. The optical transmittance of Li-doped ZnO/ZnO bilayers is about 86 % . The bilayer grown on FTO glass substrates exhibits a typical rectifying characteristic of p-n heterojunctions. In addition, the photovoltaic response of ZnO is blue-shifted from 380 to 363 nm and greatly enhanced resulting from the formation of p-n homojunctions based on ZnO.