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Download fileTuning Magnetism and Photocurrent in Mn-Doped Organic–Inorganic Perovskites
journal contribution
posted on 18.03.2020, 12:39 authored by Lixia Ren, Yutao Wang, Min Wang, Shuanhu Wang, Yang Zhao, Claudio Cazorla, Changle Chen, Tom Wu, Kexin JinOrganic–inorganic
perovskites have attracted increasing
attention in recent years owing to their excellent optoelectronic
properties and photovoltaic performance. In this work, the prototypical
hybrid perovskite CH3NH3PbI3 is turned
into a ferromagnetic material by doping Mn, which enables simultaneous
control of both charge and spin of electrons. The room-temperature
ferromagnetism originates from the double exchange interaction between
Mn2+–I––Mn3+ ions. Furthermore, it is discovered that the magnetic field can
effectively modulate the photovoltaic properties of Mn-doped perovskite
films. The photocurrent of Mn-doped perovskite solar cells increases
by 0.5% under a magnetic field of 1 T, whereas the photocurrent of
undoped perovskite decreases by 3.3%. These findings underscore the
potential of Mn-doped perovskites as novel solution-processed ferromagnetic
material and promote their application in multifunctional photoelectric-magnetic
devices.
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Keywords
photovoltaic propertiesMn-doped perovskitephotovoltaic performancecells increasesnovel solution-processedMn-doped perovskite filmsdoping Mn1 Texchange interactionperovskite CH 3 NH 3 PbI 3room-temperature ferromagnetismoptoelectronic propertiesTuning Magnetismundoped perovskite decreasesMn-doped perovskitesmultifunctional photoelectric-magnetic devices