Abnormal linear dichroism transition in two-dimensional PdPS

Li, Gang; Chen, Zheng; Zhang, Hanlin; Yu, Mengxi; Zhang, Hui; Chen, Jiawang; Wang, Zihan; Yin, Shiqi; Lin, Weichang; Gong, Penglai; Zeng, Longhui; Zhu, Xaingde; Wei, Wensen; Tian, Mingliang; Li, Liang

doi:10.1039/d2nr03587a

Cited by 5 publications

(4 citation statements)

References 38 publications

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“…For instance, the detector based on BP shows uniform photocurrents in the wide band range of 400 to 1700 nm . Different from the traditional photodetectors above, spectrally selective polarization photodetector can provide a dynamically adjustable response with the change of the incident wavelength of the light, which will have a good application prospect in future miniaturized and integrated LPL detection. − Linear dichroic (LD) conversion, which appears as a reversal of anisotropic absorption signals on the absorption spectrum, has been shown to achieve such wavelength-selective photodetectors. − However, few cases have been reported so far and all of them are inorganic systems, such as BaTiS 3 , GeAs, and PdPS . The practical application of these inorganic compounds often suffers from high cost, a complicated preparation process, and complex equipment integration.…”

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confidence: 99%

“…17−20 However, few cases have been reported so far and all of them are inorganic systems, such as BaTiS 3 , 18 GeAs, 17 and PdPS. 19 The practical application of these inorganic compounds often suffers from high cost, a complicated preparation process, and complex equipment integration. With the increasing demand for LPL detection, it is urgent to explore new LD conversion materials for spectrally selective LPL detectors to meet future applications of highintegrated optical detection.…”

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confidence: 99%

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Spectrally Selective Polarization-Sensitive Photodetection Based on a 1D Lead-Free Hybrid Perovskite Ferroelectric

Liu

Fan

Liang

et al. 2023

ACS Materials Lett.

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Green, self-powered, flexible, and tunable features have been greatly desired to satisfy the increasing demands for next-generation photodetectors and sensors. Here, we report a 1D lead-free perovskite ferroelectric HDA-BiI 5 (HDA = hexane-1,6diammonium) based photodetector showing a spectrally selective linear polarized light response due to a unique linear dichroic conversion behavior. The HDA-BiI 5 single crystal device shows an orthogonal reverse of polarization-sensitive photocurrent and can distinguish linearly polarized light in different wavelength ranges with the photocurrent anisotropy ratio ω of about 1.37 at 405 nm, 1.00 at 490 nm, and 1.17 at 530 nm. Importantly, the device achieves a ferroelectricity-driven self-powered detection with an excellent ω (∼1.28 at 405 nm) and a high detectivity D* of 5.3 × 10 8 Jones. This research provides a pathway for the design of future integratable polarization-sensitive photodetectors.

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confidence: 99%

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confidence: 99%

Spectrally Selective Polarization-Sensitive Photodetection Based on a 1D Lead-Free Hybrid Perovskite Ferroelectric

Liu

Fan

Liang

et al. 2023

ACS Materials Lett.

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“…Figure 5(d) summarizes the wavelength range and the anisotropic ratio of previously reported polarization sensitive photodetectors built of various nanowire and nanobelt materials. [45][46][47][48][49][50][51][52][53][54][55][56] It is found that the PdBr 2 nanowire photodetector exhibits the optimal anisotropic optoelectronic performance at the near-ultraviolet (405 nm) region. The remarkable polarization-sensitive performance of the PdBr 2 nanowire photodetector holds great promise for designing multifunctional optoelectronic devices and facilitating their integration and miniaturization.…”

Section: Comparisons Of Two Kinds Of Dichroism Ratio Modes (Red Linementioning

confidence: 99%

Linear dichroism transition and polarization-sensitive photodetector of quasi-one-dimensional palladium bromide

Zhu 朱,

Zhen 甄,

Niu 牛

et al. 2024

Chinese Phys. B

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Perpendicular optical reversal of the linear dichroism transition has promising applications in polarization sensitive optoelectronic devices. We perform a systematical study on the in-plane optical anisotropy of quasi one-dimensional PdBr2 by using combined measurements of the angle resolved polarized Raman spectroscopy (ARPRS) and anisotropic optical absorption spectrum. The analyses of ARPRS data validate the anisotropic Raman properties of the PdBr2 flake. And anisotropic optical absorption spectrum of PdBr2 nanoflake demonstrates distinct optical linear dichroism reversal. Photodetector constructed by PdBr2 nanowire exhibits high responsivity of 747 A W-1 and specific detectivity of 5.8×1012 Jones. And the photodetector demonstrates prominent polarization-sensitive photoresponsivity under 405 nm light irradiation with large photocurrent anisotropy ratio of 1.56, which is superior to those of most of previously reported quasi one-dimensional counterparts. Our study offers fundamental insights into the strong optical anisotropy exhibited by PdBr2, establishing it as a promising candidate for miniaturization and integration trends of polarization-related applications.

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“…When unpolarized light interacts with certain materials or passes through certain filters, its electric field vibrations align predominantly in one direction, resulting in linear polarization. 2D materials with an in-plane anisotropic nature always have an LPL response. − 2D layered perovskites exhibit distinct anisotropic features in both the in-plane and out-of-plane directions due to their inherent quantum well structure, making them promising candidates for LPL response. − Two LPL detection mechanisms based on out-of-plane structural anisotropy (Figure a) and in-plane polarization (Figure b) are identified. In the former, maximum photocurrent occurs when the polarization plane aligns parallel to the 2D inorganic layer, while perpendicular alignment results in a minimum photocurrent.…”

Section: Lpl Detectionmentioning

confidence: 99%

Coupled Kite-to-Square Distortion Transition and Physical Properties in 2D Lead Halide Perovskite

Han

2024

J. Phys. Chem. Lett.

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2D lead halide perovskites showcase diverse electrical and optoelectrical properties due to their adaptable structural distortion, which dictates the symmetry characteristics of the material. To accommodate the geometric shape of the cation, the inorganic layer of the 2D perovskite often undergoes specific distortions such as lead−halide bond length elongation/compression and lead atom displacement. The resultant distortion manifests as a quadrilateral shape formed by Pb atoms from four adjacent four octahedrons. The degree of distortion increases as the quadrilateral deviates further from a square shape and vice versa. This quadrilateral shape not only visually represents the magnitude of distortion but also confirms its direction. During the transition from kite to square distortion under external stimuli, the positions of the Pb atoms vividly illustrate the symmetry-breaking process, corresponding to a shift from high to low symmetry states. The electrical and optoelectronic properties, including ferroelectricity, pyroelectricity, piezoelectricity, nonlinear optical properties, and characteristics related to bulky photovoltaic effects, some of them exhibit direction dependence nature. This perspective employed a visible structural distortion approach to elucidate symmetry breaking and coupling distortion transitions with eight optoelectronic physical properties in 2D layered perovskite. We review recent research advancements and outline current challenges that help us to understand the structure−property relationship of 2D perovskite.

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Abnormal linear dichroism transition in two-dimensional PdPS

Abstract: The linear dichroism (LD) conversion shows promising applications for wavelength-selective photodetection. However, polarity reversal behavior of LD materials alway occurs at a certain wavelength, which can only distinguish two wavelength...

Cited by 5 publications

References 38 publications

Spectrally Selective Polarization-Sensitive Photodetection Based on a 1D Lead-Free Hybrid Perovskite Ferroelectric

Spectrally Selective Polarization-Sensitive Photodetection Based on a 1D Lead-Free Hybrid Perovskite Ferroelectric

Linear dichroism transition and polarization-sensitive photodetector of quasi-one-dimensional palladium bromide

Coupled Kite-to-Square Distortion Transition and Physical Properties in 2D Lead Halide Perovskite

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