期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 127, 期 45, 页码 21999-22014出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.3c05890
关键词
-
Artificial electron-oxygen vacancy pairs were fabricated by heterovalent Mn doping, providing new insights for applications in photovoltaics. The effective separation of artificial electron-oxygen vacancy pairs by an electric field and illumination was found to enhance photovoltaic performance. Photocurrent measurements clarified the contribution of artificial electron-vacancy pairs, and it was observed that the enhanced reversible photocurrent is dependent on the doping level and polarization.
Artificial electron-oxygen vacancy pairs were fabricated by heterovalent Mn doping in the Na0.5Bi4.5Ti4O15 parent phase, which offers an excellent platform for studying oxygen vacancy physics. In view of its excellent photovoltaic performance, the phase structure, morphology, and ferroelectric polarization were investigated. Moreover, using heterovalent Mn doping in Na0.5Bi4.5Ti4O15 films as a model system, we demonstrate that the effective separation of artificial electron-oxygen vacancy pairs by an electric field and illumination can be used to enhance photovoltaics. Specifically, we clarified the contribution of artificial electron-vacancy pairs using photocurrent measurements. Furthermore, the enhanced reversible photocurrent is dependent on the doping level and polarization. The present investigation suggests that heterovalent Mn doping opens up the prospective technology of artificial electron-oxygen vacancy pairs in ferroelectric cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据