Physics

Microstrip

Photoconductivity

Chiral symmetry breaking

Photovoltaic effect

Ferromagnetism

Biology

Optics

Chirality (physics)

Circular polarization

Symmetry breaking

Nambu–Jona-Lasinio model

Spintronics

Ecology

Materials science

Condensed matter physics

Photocurrent

Photovoltaic system

Spin (aerodynamics)

Quantum mechanics

Optoelectronics

Excitation

Thermodynamics

ACS Nano

Two-dimensional hybrid organic–inorganic perovskites (2D-HOIPs) that form natural multiple quantum wells have attracted increased research interest due to their interesting physics and potential applications in optoelectronic devices. Recent studies have shown that spintronics applications can also be introduced to 2D-HOIPs upon integrating chiral organic ligands into the organic layers. Here we report spin-dependent photovoltaic and photogalvanic responses of optoelectronic devices based on chiral 2D-HOIPs, namely, (R-MBA)2PbI4 and (S-MBA)2PbI4. The out-of-plane photocurrent response in vertical photovoltaic devices exhibits ∼10% difference upon right and left circularly polarized light (CPL) excitation, which originates from selective spin transport through the chiral multilayers. In contrast, the in-plane photocurrent response generated by CPL excitation of planar photoconductive devices shows a typical response of chirality-induced circular photogalvanic effect that originates from the Rashba splitting in the electronic bands of these compounds. Our studies may lead to potential applications of chiral 2D-HOIPs in optoelectronic devices that are sensitive to the light helicity.

Spin-Dependent Photovoltaic and Photogalvanic Responses of Optoelectronic Devices Based on Chiral Two-Dimensional Hybrid Organic–Inorganic Perovskites