DataVXACS Applied Electronic MaterialsPaper
journal article·2023-02-28

Reduced Leakage Current and Enhanced Photovoltaic Effect in Zn-Doped BiFeO3 Thin Films

Xinyan Wang, Can Wang, Xiaokang Yao, Yong Zhou, Ning Liang, Qiao Jin, Kun Chen, Meng He, Erjia Guo, Chen Ge, Guozhen Yang, Kuijuan Jin

ACS Applied Electronic Materials· Volume 5· Issue 2
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Source abstract

Abstract

Zn-doped BiFeO 3 (BFO) thin films with compositional formula BiFe 1– x Zn x O 3 ( x = 0, 0.1, and 0.2) have been epitaxially grown on SrRuO 3 buffered SrTiO 3 substrates by pulsed laser deposition. The high-concentration Zn doping does not suppress the ferroelectric polarization of the BFO films, and the Zn-doped BFO thin films also show reduced leakage current and an enhanced photovoltaic effect. By optical and photoelectron spectroscopy measurements, with Zn doping, the BFO thin films show more oxygen vacancies and a structural evolution, and moreover, a blue-shift of optical bandgap and an increase of work function are demonstrated. The reduction of leakage current and the enhancement of photovoltaic effect are related to the variation of interfacial Schottky junctions and oxygen vacancies with doping. This study reveals systematic insights into the effects of Zn doping on the physical properties of BFO thin films.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materialsMaterials processing

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magneto-Optical Properties and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality · Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Beijing Nova Program · Chinese Academy of Sciences

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