Recent progress of bulk photovoltaic effect in acentric single crystals and optoelectronic devices

Dang, Yangyang; Tao, Xiaofeng

doi:10.1016/j.matt.2022.06.011

Cited by 26 publications

(10 citation statements)

References 137 publications

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“…A bulk photovoltaic effect (BPVE), a unique phenomenon existing in polar materials and expressed as the generation of the steady-state photocurrent without bias or construction of band curvature, has enormous applications in solar harvesting . − Particularly, the recently discovered polar hybrid perovskites (PHPs), which own the virtue of excellent semiconducting properties and natural polarities, have been regarded as the ideal platform to study and develop the merits of BPVEs. ,,,, Moreover, the spontaneous polarization-driven nature of BPVEs enables these PHPs to realize high-performance X-ray detection, polarized light detection, and circular polarization photodetection. − However, the BPVE in PHPs is still valid in the short-wavelength region, which constrains their application to the near-infrared region, a regime that is important for night vision and quantum information . To better understand the BPVE, especially in the near-infrared (NIR) region, PHPs with better spectral absorption are demanded to be developed.…”

Section: Introductionmentioning

confidence: 99%

“…1−6 Particularly, the recently discovered polar hybrid perovskites (PHPs), which own the virtue of excellent semiconducting properties and natural polarities, have been regarded as the ideal platform to study and develop the merits of BPVEs. 1,4,5,7,8 Moreover, the spontaneous polarizationdriven nature of BPVEs enables these PHPs to realize highperformance X-ray detection, polarized light detection, and circular polarization photodetection. 9−15 However, the BPVE in PHPs is still valid in the short-wavelength region, which constrains their application to the near-infrared region, a regime that is important for night vision and quantum information.…”

Section: ■ Introductionmentioning

confidence: 99%

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Bulk Photovoltaic Effect in Chiral Layered Hybrid Perovskite Enables Highly Sensitive Near-Infrared Circular Polarization Photodetection

Ye,

Peng,

Wei

et al. 2023

Chem. Mater.

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A bulk photovoltaic effect (BPVE), as a form of optoelectronic conversion phenomenon mostly appearing in polar materials, has shown tremendous potential in applications of solar harvesting and photodetectors. However, materials exhibiting nearinfrared (NIR) BPVEs to meet the growing requirement of night vision and modern informational technology are scarce and urged to be developed. Recently discovered polar hybrid perovskites (PHPs) with various chemical and structural tunabilities provide opportunities to obtain materials with desired optoelectronic properties. Herein, by precisely regularizing the arrangement of PbI 6 octahedra, chiral PHPs of [R/S-BEPA] 2 FAPb 2 I 7 (RBFP and SBFP, space group P2 1 , R/S-BEPA = (R/S)-1-(4-bromophenyl)ethylammonium, FA = formidinum) with a state-of-the-art bandgap (E g = 1.45 eV) were designed and synthesized successfully. Benefited from chiral polar structures and a narrow bandgap, bulk crystal devices of SBFP exhibit Vis−NIR BPVEs with an optimized open circuit voltage and short circuit current up to 0.91 V and 14 μA cm −2 , respectively. Moreover, boosted by the chiral BPVE, a broad spectrum (from 405 to 785 nm) circularly polarized light (CPL) detection with high asymmetry factors up to 0.376 based on the bulk crystal devices of SBFP was realized. Notably, SBFP is the first single compound PHP capable of directly detecting NIR CPL signals without an external absorber or a specific laser source. This work provides an ideal platform for having a deeper understanding of the interplay between the BPVE and optical helicity in the NIR region in the future.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Bulk Photovoltaic Effect in Chiral Layered Hybrid Perovskite Enables Highly Sensitive Near-Infrared Circular Polarization Photodetection

Ye,

Peng,

Wei

et al. 2023

Chem. Mater.

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“…Hence, shift current can be generated along nonpolar axes without macroscopic polarization. In this regard, shift current is intrinsically different from the classical explanation based on macroscopic polarization [1a,d,3] . However, the BPVE had been exclusively investigated along polar axes [9] .…”

Section: Introductionmentioning

confidence: 99%

Bulk Photovoltaic Effect Along the Nonpolar Axis in Organic‐Inorganic Hybrid Perovskites

Noma,

Chen,

Dhara

et al. 2023

Angew Chem Int Ed

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The origin of the bulk photovoltaic effect (BPVE) was considered as a built‐in electric field formed by the macroscopic polarization of materials. Alternatively, the “shift current mechanism” has been gradually accepted as the more appropriate description of the BPVE. This mechanism implies that the photocurrent generated by the BPVE is a topological current featuring an ultrafast response and dissipation‐less nature, which is very attractive for photodetector applications. Meanwhile, the origin of the BPVE in organic–inorganic hybrid perovskites (OIHPs) has not been discussed and is still widely accepted as the classical mechanism without any experimental evidence. Herein, we observed the BPVE along the nonpolar axis in OIHPs, which is inconsistent with the classical explanation. Furthermore, based on the nonlinear optical tensor correlation, we substantiated that the BPVE in OIHPs is originated in the shift current mechanism.

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“…Conventionally, constructing p - n heterojunctions can form built-in electric field to separate and transport photogenerated carriers, thus allowing them to be self-powered. − But this approach suffers from a complicated fabrication process and interface engineering. More recently, the polar photovoltaic effect (PPVE) stemming from the spontaneous electric polarization in single-phase polar LHPs can drive the photogenerated carriers’ separation and transport as well, which provides a brand-new strategy for creating novel self-powered detectors. ,− For example, Ji et al successfully achieved self-powered X-ray detection by exploiting the PPVE in a 2D (CH 3 OC 3 H 9 N) 2 CsPb 2 Br 7 LHP . However, such self-powered X-ray detectors are still in their early stage.…”

mentioning

confidence: 99%

Chirality Inducing Polar Photovoltage in a 2D Lead-Free Double Perovskite toward Self-Powered X-ray Detection

You

et al. 2023

ACS Energy Lett.

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Lead-free halide double perovskites (HDPs) have sparked broad interest in developing “green” photodetectors; however, self-powered X-ray detectors in this family remain elusive. Here, by exploiting the chirality-induced polar photovoltaic effect in a chiral-polar 2D HDP, (R-MPA)4AgBiI8 (1, R-MPA = R-β-methylphenethylammonium), we successfully realized self-powered X-ray detection. The significant spontaneous electric polarization in 1 gives it a large polar photovoltage of 0.36 V, which drives the separation and transport of X-ray-generated carriers, thus acquiring the capability of self-powered detection. Consequently, X-ray detectors based on high-quality single crystals of 1 exhibit a high sensitivity of 46.3 μC Gy–1 cm–2 and an ultralow detection limit of 85 nGy s–1 at zero bias. The sensitivity can be further increased to 949.6 μC Gy–1 cm–2 at 50 V bias, outperforming all current 2D HDP detectors. Our work is the first to demonstrate self-powered X-ray detection in single-phase lead-free HDPs, enlightening future design of “green” self-powered radiation detectors.

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Recent progress of bulk photovoltaic effect in acentric single crystals and optoelectronic devices

Cited by 26 publications

References 137 publications

Bulk Photovoltaic Effect in Chiral Layered Hybrid Perovskite Enables Highly Sensitive Near-Infrared Circular Polarization Photodetection

Bulk Photovoltaic Effect in Chiral Layered Hybrid Perovskite Enables Highly Sensitive Near-Infrared Circular Polarization Photodetection

Bulk Photovoltaic Effect Along the Nonpolar Axis in Organic‐Inorganic Hybrid Perovskites

Chirality Inducing Polar Photovoltage in a 2D Lead-Free Double Perovskite toward Self-Powered X-ray Detection

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