Enhanced photovoltaic effect in Ca and Mn co-doped BiFeO3 epitaxial thin films

Pei, Weijie; Chen, Jian; You, Di; Zhang, Qingfeng; Li, Mingkai; Lu, Yinmei; Fu, Zhengyi; He, Yunbin

doi:10.1016/j.apsusc.2020.147194

Cited by 61 publications

(26 citation statements)

References 54 publications

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“…Figure 6 illustrates photocurrents and photovoltage from ferroelectric photovoltaic devices which were developed in recent years. [73,75,81,[86][87][88]90,91,97,98,106,118,119,[140][141][142][143][144][145][146][147][148][149][150][151]…”

Section: Adjustment Of Experimental Conditionsmentioning

confidence: 99%

“…proposed that the BFO material could be modified by Ga and Mn codoping, as shown in Figure 3b. [ 90 ] The results showed that the bandgap of BCFMO is significantly reduced and the polarization is strengthened compared to BFO, resulting in the improvement of the ferroelectric photovoltaic materials. In addition, it was reported that higher monochromatic incident photon‐to‐electron conversion efficiency can be achieved by A‐site and B‐site codoping.…”

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

“…Advancement of photovoltaic devices based on various ferroelectric materials. [ 73,75,81,86–88,90,91,97,98,106,118,119,140–151 ] …”

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

“…Figure 6. Advancement of photovoltaic devices based on various ferroelectric materials [73,75,81,[86][87][88]90,91,97,98,106,118,119,[140][141][142][143][144][145][146][147][148][149][150][151]. …”

mentioning

confidence: 99%

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Ferroelectric Photovoltaic Materials and Devices

Han

Yang

2021

Adv Funct Materials

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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.

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Section: Adjustment Of Experimental Conditionsmentioning

confidence: 99%

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

“…Advancement of photovoltaic devices based on various ferroelectric materials. [ 73,75,81,86–88,90,91,97,98,106,118,119,140–151 ] …”

Section: Performance Of Ferroelectric Photovoltaicsmentioning

confidence: 99%

mentioning

confidence: 99%

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Ferroelectric Photovoltaic Materials and Devices

Han

Yang

2021

Adv Funct Materials

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Narrow Bandgap Inorganic Ferroelectric Thin Film Materials

Yang

2022

Adv Materials Inter

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(2 of 18)www.advmatinterfaces.de Figure 1. a) Spectra of solar radiance and UV-Vis-near IR absorption of BiFeO 3 and KBiFe 2 O 5 thin film materials and b) maximum theoretical efficiency versus bandgap. Reproduced with permission. [31] Copyright 2013, Springer Nature. c) The ultraviolet-visible-near-infrared (NIR) absorption spectrum hexagonal of and d) tauc plots of the ferrites (h-RFOs) with a narrow bandgap for the direct bandgap transition. Reproduced with permission. [32]

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Artificial Optoelectronic Synapses Based on Light‐Controllable Ferroelectric Semiconductor Memristor

Hu,

Xu,

Liu

et al. 2024

Advanced Optical Materials

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Numerous synaptic devices have been explored for the next generation of energy‐efficient computing techniques. Among them, optoelectronic synaptic devices based on semiconductor/ferroelectric heterostructures have received a lot of attention lately due to their amazing parallelism, efficiency, and fault tolerance properties. However, polarizing the ferroelectric layer or gating the dielectric layer is necessary to achieve tunable synaptic functions, which generally causes an increase in energy consumption and complex manufacturing processes. Here, a simple and efficient method is demonstrated to develop a tunable optoelectronic synaptic device based on a single ferroelectric semiconductor, BiFeO3‐BaTiO3 (BF‐BT). Multi‐essential synaptic functions including short‐term plasticity, paired‐pulse facilitation, and long‐term plasticity are all satisfactorily replicated by the memristor device. More significantly, light‐controllable synaptic behaviors are realized by altering the ferroelectric polarization state of BF‐BT. Synaptic devices’ relaxation characteristics enable simulation of the effects of positive/negative emotions on learning and forgetting processes. This study highlights the potential of the ferroelectric semiconductor memristor in constructing the efficient optoelectronic synapses for future neuromorphic electronics with the ability to learn and sense optical information.

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Enhanced photovoltaic effect in Ca and Mn co-doped BiFeO3 epitaxial thin films

Cited by 61 publications

References 54 publications

Ferroelectric Photovoltaic Materials and Devices

Ferroelectric Photovoltaic Materials and Devices

Narrow Bandgap Inorganic Ferroelectric Thin Film Materials

Artificial Optoelectronic Synapses Based on Light‐Controllable Ferroelectric Semiconductor Memristor

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