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Bulk photovoltaic effect in noncentrosymmetric materials is a fundamental and significant property that holds potential for high-efficiency energy harvesting, such as photoelectric application and photocatalysis. Here, based on first…

Materials Science · Physics 2024-05-14 Keyu An , Zhuang Qian , Haoqiang Ai , Zhichao Yu , Shuangpeng Wang , Hui Pan

We propose a device model that elucidates the role of domain walls in the photovoltaic effect in multi-domain ferroelectric perovskites. The model accounts for the intricate interplay between ferroelectric polarization, space charges,…

Materials Science · Physics 2019-07-01 Ying Shi Teh , Kaushik Bhattacharya

The bulk photovoltaic (BPV) effect that converts light into electric current is highly sensitive to the system symmetry and its electronic Bloch wavefunction. To create a sizable net electric current, it is necessary to break the…

Materials Science · Physics 2024-07-08 Chunmei Zhang , Jian Zhou

The bulk photovoltaic effect (BPVE) converts light into a coherent dc current at zero bias, through what is commonly known as the shift current. This current has previously been attributed to the displacement of the electronic wave function…

Mesoscale and Nanoscale Physics · Physics 2022-03-24 Daniel Kaplan , Tobias Holder , Binghai Yan

Broadband, efficient and fast conversion of light to electricity is crucial for sensing and clean energy. Here we reveal the largest observed bulk photo-voltaic effect (BPVE), an intrinsic mechanism predicted to be ultrafast and exceed the…

The bulk photovoltaic effect (BPE) leads to the generation of a photocurrent from an asymmetric material. Despite drawing much attention due to its ability to generate photovoltages above the band gap ($E_g$), it is considered a weak effect…

We compute the shift current bulk photovoltaic effect (BPVE) in bulk BaTiO$_3$ and two-dimensional monochalcogenide SnSe considering quasi-particle corrections and exciton effects. We explore changes in shift current peak position and…

Materials Science · Physics 2020-01-15 Ruixiang Fei , Liang Z. Tan , Andrew M. Rappe

The bulk photovoltaic effect (BPVE) refers to current generation due to illumination by light in a homogeneous bulk material lacking inversion symmetry. In addition to the intensively studied shift current, the ballistic current, which…

Materials Science · Physics 2021-05-05 Zhenbang Dai , Aaron M. Schankler , Lingyuan Gao , Liang Z. Tan , Andrew M. Rappe

The bulk photovoltaic effect (BPVE) is a second-order optical process in noncentrosymmetric materials that converts the light into DC currents. BPVE is classified into shift current and injection current according to the generation…

Materials Science · Physics 2023-02-21 Hanqi Pi , Shuai Zhang , Hongming Weng

The bulk photovoltaic effect that is intimately associated with crystalline symmetry has been extensively studied in various nonmagnetic materials, especially ferroelectrics with a switchable electric polarization. In order to further…

Materials Science · Physics 2022-12-28 Chunmei Zhang , Ping Guo , Jian Zhou

The bulk photovoltaic effect in noncentrosymmetric materials is an intriguing physical phenomenon that holds potential for high-efficiency energy harvesting. Here, we study the shift current bulk photovoltaic effect in the transition metal…

Materials Science · Physics 2021-01-28 Aaron M. Schankler , Lingyuan Gao , Andrew M. Rappe

We investigate the bulk photovoltaic effect, which rectifies light into electric current, in a collective quantum state with correlation driven electronic ferroelectricity. We show via explicit real-time dynamical calculations that the…

Strongly Correlated Electrons · Physics 2021-09-21 Tatsuya Kaneko , Zhiyuan Sun , Yuta Murakami , Denis Golež , Andrew J. Millis

The bulk photovoltaic effect (BPVE) offers a promising avenue to surpass the efficiency limitations of current solar cell technology. However, disentangling intrinsic and extrinsic contributions to photocurrent remains a significant…

We investigate the shift current bulk photovoltaic response of materials close to a band inversion topological phase transition. We find that the bulk photocurrent reverses direction across the band inversion transition, and that its…

Mesoscale and Nanoscale Physics · Physics 2016-09-08 Liang Z. Tan , Andrew M. Rappe

We study the bulk photovoltaic effect (BPVE) in Dirac and Weyl semimetals under two-frequency light irradiation. We show that the BPVE emerges for centrosymmetric Dirac and Weyl semimetals in the presence of light fields with frequencies…

Mesoscale and Nanoscale Physics · Physics 2025-01-15 Yuya Ikeda , Sota Kitamura , Takahiro Morimoto

A ferroelectric field effect in the bulk heterojunction was found when an external electric field (EEF) was applied on the active layer of polymer solar cells (PSCs) during the annealing process of the active layer spin-coated with poly…

Materials Science · Physics 2015-06-17 Meng Li , Heng Ma , Hairui Liu , Yurong Jiang , Heying Niu , Adil Amat

The two-dimensional (2D) bulk photovoltaic effect (BPVE) is a cornerstone for future highly efficient 2D solar cells and optoelectronics. The ferromagnetic semiconductor 2H-FeCl2 is shown to realize a new type of BPVE in which spatial…

Materials Science · Physics 2023-06-16 Liang Liu , Xiaolin Li , Luping Du , Xi Zhang

The bulk photovoltaic effect is a photocurrent generation from alternating electric field, which is a promising candidate for future efficient solar cell technology. It is the second-order optical current, which is the injection current or…

Mesoscale and Nanoscale Physics · Physics 2025-05-22 Motohiko Ezawa

Halide perovskites have emerged as promising materials for next-generation photovoltaics, laser sources and X-ray detectors. There is intense debate as to whether some photoactive halide perovskites exhibit ferroelectric behaviour and…

Materials Science · Physics 2026-01-21 Weilun Li , Qimu Yuan , Michael B. Johnston , Joanne Etheridge

Giant photovoltaic effect due to bulk photovoltaic effect observed in multiferroic BiFeO3 thin films has triggered a renewed interest on photoferroelectric materials for photovoltaic applications. Tremendous advance has been done to improve…

Materials Science · Physics 2022-10-03 I. Fina , C. Paillard , B. Dkhil