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Re-emerging photo responsiveness enhancement under compression in (NH4)2SeBr6 by Yuzhen Zhang; Guozhao Zhang; Haiwa Zhang; Tianji Ou; Qinglin Wang; Lingrui Wang; Yinwei Li; Cailong Liu is a Engineering article available to read on EtoBox.
What is Re-emerging photo responsiveness enhancement under compression in (NH4)2SeBr6 about?
Pressure has an essential role in the control of both the photo-responsive and electrical transport properties of halide perovskites. As a leadfree halide double perovskite material, (NH 4 ) 2 SeBr 6 , which avoids the use of a toxic lead element, has become an ideal candidate for application in photovoltaic and photoelectric devices. In this paper, the photoelectric response and electrical transport response properties of (NH 4 ) 2 SeBr 6 have been studied by photocurrent and alternating current impedance spectroscopy measurements under high pressure up to 21.2 GPa, respectively. The current results indicate that in (NH 4 ) 2 SeBr 6 , a second photo-responsiveness enhancement re-emerges above 11.2 GPa, after the photocurrent drops from the first maximum at 6.5 GPa and reaches the second maximum at 16.4 GPa. The photoelectric response of (NH 4 ) 2 SeBr 6 in phase II is better than that of phase I, and electron conduction rather than ion conduction plays a dominant role in the whole electrical transportation process under compression.
Who reads Re-emerging photo responsiveness enhancement under compression in (NH4)2SeBr6?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Yuzhen Zhang; Guozhao Zhang; Haiwa Zhang; Tianji Ou; Qinglin Wang; Lingrui Wang; Yinwei Li; Cailong Liu
- Publisher
- AIP Publishing
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)