Ferroelectric Photovoltaic Materials and Devices

Abstract

Ferroelectric materials have been a focus of much research over the last few decades for their unique piezoelectric and optoelectronic properties. Conventional solar cells have been devised based on the photovoltaic effect of semiconductor p–n junctions, with their photogenerated voltage being influenced by the bandgap of the semiconductors, limiting their further development. Ferroelectric photovoltaics have attracted attention for their unusual photovoltaic effect and controllability. The photogenerated voltage that is independent of bandgap along the polarization direction can be generated in ferroelectric materials, undoubtedly making up for the lack of solar cells. Ferroelectric materials have been used in a wide range of piezoelectric, storage, sensor, and optoelectronic because of their unique optical and electrical properties. However, the small photogenerated current of ferroelectric photovoltaic devices is one of the challenges that need to be overcome. Researchers have shown that the photogenerated current of ferroelectric photovoltaic devices can be significantly improved by cation doping and heterostructure construction, reigniting the enthusiasm for the investigation of ferroelectric photovoltaics. This paper reviews a variety of ferroelectric photovoltaic materials, the mechanism of ferroelectric photovoltaics, approaches for improving ferroelectric photovoltaic performance, and the applications and future prospects for ferroelectric materials.

Ferroelectric Polymer Drives Performance Enhancement of Non‐fullerene Organic Solar Cells

“…Ferroelectrics polymers are a type of polymer crystal materials with ferroelectricity. The spontaneous polarization of the ferroelectric dipoles can be readily switched by the applied electric field and induce a stable and controllable internal electric field in optoelectronic devices [21–26] . At present, researchers have made some successful attempts on ferroelectric materials in the field of perovskite solar cells [27–30] .…”

Comparative density functional studies of BiMO3 polymorphs (M = Al, Ga, In) based on LDA, GGA, and meta-GGA functionals

“…Bismuth-based perovskite oxides, with the general formula BiMO 3 , are one of the most promising ferroelectric and piezoelectric materials for various technological applications as an alternative to compounds based on lead. [1][2][3][4][5][6][7][8] Their large ferroelectric polarization arises from the stereochemically active 6s 2 lone pair electrons on Bi cations. Polar BiMO 3 perovskites with a magnetic M cation have also attracted attention as possible multiferroics.…”

Ferroelectric Polymer Drives Performance Enhancement of Non‐fullerene Organic Solar Cells

“…Ferroelectrics polymers are a type of polymer crystal materials with ferroelectricity. The spontaneous polarization of the ferroelectric dipoles can be readily switched by the applied electric field and induce a stable and controllable internal electric field in optoelectronic devices [21–26] . At present, researchers have made some successful attempts on ferroelectric materials in the field of perovskite solar cells [27–30] .…”

“…The spontaneous polarization of the ferroelectric dipoles can be readily switched by the applied electric field and induce a stable and controllable internal electric field in optoelectronic devices. [21][22][23][24][25][26] At present, researchers have made some successful attempts on ferroelectric materials in the field of perovskite solar cells. [27][28][29][30] Incorporation of the ferroelectric dipoles into the devices has been demonstrated to give a "power" to enhance the built-in electric field and thus inhibit the carrier recombination at the trap location.…”