Balancing the Photo-Induced Carrier Transport Behavior at Two Semiconductor Interfaces for Dual-Polarity Photodetection

Article Multidisciplinary Sciences

Constructing heterojunctions by surface sulfidation for efficient inverted perovskite solar cells

Xiaodong Li et al.

Summary: A stable perovskite heterojunction was achieved in inverted solar cells by sulfidating the surface of lead-rich perovskite films, resulting in improved power conversion efficiency and open-circuit voltage.

SCIENCE (2022)

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Article Optics

Van der Waals two-color infrared photodetector

Peisong Wu et al.

Summary: With the increasing demand for multispectral information acquisition, there has been extensive attention on inexpensive and miniaturizable infrared multispectral imaging technology. However, the high cost of epitaxial semiconductors and complex cooling systems limit the widespread usage of these photodetectors. In this study, a noncooled two-color infrared photodetector is demonstrated, which achieves ultralow crosstalk and impressive performance for NIR/MWIR two-color infrared imaging and absolute temperature detection.

LIGHT-SCIENCE & APPLICATIONS (2022)

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Article Chemistry, Multidisciplinary

Achieving Record High External Quantum Efficiency >86.7% in Solar-Blind Photoelectrochemical Photodetection

Xin Liu et al.

Summary: A solar-blind photodetector based on p-AlGaN nanowires with Rh-Cr2O3 hybrid structures is reported, achieving significantly improved external quantum efficiency and responsivity. The initial decoration of Rh nanoparticles and subsequent incorporation of amorphous Cr2O3 layer contribute to enhanced interfacial carrier dynamics and surface chemical reactivity, ultimately improving the photoelectrochemical performance.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Physics, Applied

Realization of self-powered bidirectional photoresponse in the ultraviolet/visible wavelength region in ferroelectric heterojunctions

Xuemin Shen et al.

Summary: In this study, self-powered bidirectional photodetectors with broadband and wavelength selective photodetection in the ultraviolet/visible wavelength region were demonstrated using CH3NH3PbBr3/PbZr0.52Ti0.48O3 ferroelectric heterojunctions. The photodetectors exhibited positive sensitivity in the UV spectral range and negative sensitivity in the visible spectral range, with the possibility of reversing the photoresponse polarity in the UV spectral range through electrically polarizing the ferroelectric PbZr0.52Ti0.48O3.

APPLIED PHYSICS LETTERS (2022)

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Article Chemistry, Multidisciplinary

Pt/AlGaN Nanoarchitecture: Toward High Responsivity, Self-Powered Ultraviolet-Sensitive Photodetection

Danhao Wang et al.

Summary: This study presents solar-blind self-powered photoelectrochemical-type photodetectors based on self-assembled AlGaN nanostructures on silicon, achieving significant enhancement of photon responsivity and record fast response/recovery time with proper surface platinum decoration. The high solar-blind photodetection is attributed to unparalleled material quality, fast interfacial kinetics, and high carrier separation efficiency, suggesting potential for designing future energy-efficient optoelectronic systems on a silicon platform.

NANO LETTERS (2021)

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Review Physics, Multidisciplinary

Compositionally graded III-nitride alloys: building blocks for efficient ultraviolet optoelectronics and power electronics

Haochen Zhang et al.

Summary: Graded AlGaN alloys, by controlling the variation of aluminum composition, play a crucial role in UV light emitters and power electronic devices, enabling high-density carrier generation through polarization-induced doping, as well as manipulating carrier transport behavior through band engineering.

REPORTS ON PROGRESS IN PHYSICS (2021)

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Article Multidisciplinary Sciences

In situ manipulation of the active Au-TiO2 interface with atomic precision during CO oxidation

Wentao Yuan et al.

Summary: The interface between metal catalyst and support is critical in heterogeneous catalysis. The study found that the atomic structure of the Au-TiO2 interface depends on the epitaxial rotation of gold nanoparticles on a TiO2 surface during CO oxidation. Manipulation of the active Au-TiO2 interface was achieved in situ by changing gas and temperature, suggesting real-time design of catalytic interface in operating conditions may be possible.

SCIENCE (2021)

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Article Multidisciplinary Sciences

2D-3D integration of hexagonal boron nitride and a high-κ dielectric for ultrafast graphene-based electro-absorption modulators

Hitesh Agarwal et al.

Summary: By showcasing the integration of 2D-3D dielectrics in a double-layer graphene EA modulator, this research has successfully overcome the trade-off between high speed and large modulation efficiency. The new material combination enables the modulator device to achieve higher performance, with a bandwidth of approximately 39 GHz and a three-fold increase in modulation efficiency compared to previously reported high-speed modulators.

NATURE COMMUNICATIONS (2021)

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Review Physics, Applied

Passivation of III-V surfaces with crystalline oxidation

P. Laukkanen et al.

Summary: Control of interfacial physicochemical properties related to device materials to reduce the impact of point defects on device performance is a key focus in the semiconductor industry. While control of defect density for silicon has been established through deliberate reactions with congruent species, such as hydrogen, the control of interfacial defects for III-V device materials remains an active area of research. III-V devices have demanding performance criteria, and surface reactions of III-V crystals, including oxidation, can limit device performance, resulting in significant degradation.

APPLIED PHYSICS REVIEWS (2021)

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Article Nanoscience & Nanotechnology

Coupling Plasmonic Pt Nanoparticles with AlGaN Nanostructures for Enhanced Broadband Photoelectrochemical-Detection Applications

Yang Kang et al.

Summary: The study demonstrates a significant enhancement of photodetection bandwidth and photoresponsivity in photoelectrochemical cells by coupling plasmonic-platinum nanoparticles with p-type AlGaN-semiconductor nanostructures. The devices show a 3 orders of magnitude boost in photoresponsivity in the visible band and nearly sevenfold enhancement under 254 nm light illumination. The proposed plasmon-induced metal/semiconductor hybrid nanoarchitectures show significant promise in designing specific wavelength-dominance broadband photosensing systems of the future.

ACS APPLIED NANO MATERIALS (2021)

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Editorial Material Materials Science, Ceramics

Lining up for better performance: Researchers tailor interfaces in solid-state batteries

[Anonymous]

AMERICAN CERAMIC SOCIETY BULLETIN (2021)

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Article Multidisciplinary Sciences

Stabilizing perovskite-substrate interfaces for high-performance perovskite modules

Shangshang Chen et al.

Summary: The study found that DMSO liquid additive trapped in perovskite-substrate interfaces during film formation led to voids, accelerating film degradation. Partial replacement of DMSO with solid-state carbohydrazide reduced interfacial voids and increased stability. Blade-coated p-i-n structure PSCs achieved a maximum PCE of 23.6% without efficiency loss after stability tests, demonstrating improved efficiency and stability with the new approach.

SCIENCE (2021)

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Article Engineering, Electrical & Electronic

Bidirectional photocurrent in p-n heterojunction nanowires

Danhao Wang et al.

Summary: The light-detection electrochemical cell based on vertically aligned p-AlGaN/n-GaN p-n heterojunction nanowires in an electrolyte environment can exhibit a photoresponse with reversed polarity depending on the wavelength of light. This device offers high responsivity at different wavelengths.

NATURE ELECTRONICS (2021)

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Review Chemistry, Multidisciplinary

Dual-polarity output response-based photoelectric devices

Bangsen Ouyang et al.

Summary: Photoelectric devices converting light information into electrical signals are widely studied with various mechanisms like photovoltaic, photothermoelectric, and photoelectrochemical effects. The polarity of the photocurrent is sensitive to multiple parameters, impacting their design and potential applications. Recent developments focus on working mechanisms, polarity control strategies, and potential applications in biosensing and wavelength discrimination.

CELL REPORTS PHYSICAL SCIENCE (2021)

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Article Chemistry, Physical

Revealing the role of the cathode-electrolyte interface on solid-state batteries

Beniamin Zahiri et al.

Summary: Interfaces play crucial roles in the performance of secondary solid-state batteries, and the crystallography and morphology of thick cathodes directly impact long-term performance. Minimizing interfacial area is key to understanding interface instabilities and improving cell performance. Dense and thick cathodes are suggested for increasing energy density and stability of solid-state batteries.

NATURE MATERIALS (2021)

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Article Electrochemistry

Photocurrent switching effect on BiVO4 electrodes and its application in development of photoelectrochemical glucose sensor

Li Chen et al.

JOURNAL OF SOLID STATE ELECTROCHEMISTRY (2020)

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Article Multidisciplinary Sciences

Heterogeneous integration of single-crystalline complex-oxide membranes

Hyun S. Kum et al.

NATURE (2020)

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Article Multidisciplinary Sciences

Uncovering near-free platinum single-atom dynamics during electrochemical hydrogen evolution reaction

Shi Fang et al.

NATURE COMMUNICATIONS (2020)

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Article Multidisciplinary Sciences

Light intensity-induced photocurrent switching effect

Agnieszka Podborska et al.

NATURE COMMUNICATIONS (2020)

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Article Multidisciplinary Sciences

Flux-induced topological superconductivity in full-shell nanowires (Publication with Expression of Concern. See vol. 373, pg. 500, 2021)

S. Vaitiekenas et al.

SCIENCE (2020)

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Article Materials Science, Multidisciplinary

A Self-Powered High-Performance UV Photodetector Based on Core-Shell GaN/MoO3-x Nanorod Array Heterojunction

Yulin Zheng et al.

ADVANCED OPTICAL MATERIALS (2020)

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Article Chemistry, Physical

Surface-States-Modulated High-Performance InAs Nanowire Phototransistor

Xutao Zhang et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2020)

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Article Multidisciplinary Sciences

Piezoelectric and pyroelectric effects induced by interface polar symmetry

Ming-Min Yang et al.

NATURE (2020)

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Article Multidisciplinary Sciences

Van der Waals integration before and beyond two-dimensional materials

Yuan Liu et al.

NATURE (2019)

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Review Nanoscience & Nanotechnology

Metal halide perovskite nanostructures for optoelectronic applications and the study of physical properties

Yongping Fu et al.

NATURE REVIEWS MATERIALS (2019)

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Review Chemistry, Multidisciplinary

Nanowire Photoelectrochemistry

Jiao Deng et al.

CHEMICAL REVIEWS (2019)

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Review Nanoscience & Nanotechnology

Topological nanomaterials

Pengzi Liu et al.

NATURE REVIEWS MATERIALS (2019)

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Article Multidisciplinary Sciences

Asymmetric hot-carrier thermalization and broadband photoresponse in graphene-2D semiconductor lateral heterojunctions

Yuxuan Lin et al.

SCIENCE ADVANCES (2019)

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Article Multidisciplinary Sciences

Transferred monolayer MoS2 onto GaN for heterostructure photoanode: Toward stable and efficient photoelectrochemical water splitting

Mostafa Afifi Hassan et al.

SCIENTIFIC REPORTS (2019)

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Article Chemistry, Multidisciplinary

A large-scale, ultrahigh-resolution nanoemitter ordered array with PL brightness enhanced by PEALD-grown AlN coating

Mingzeng Peng et al.

NANOSCALE (2019)

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Review Engineering, Electrical & Electronic

Epitaxial growth and layer-transfer techniques for heterogeneous integration of materials for electronic and photonic devices

Hyun Kum et al.

NATURE ELECTRONICS (2019)

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Article Nanoscience & Nanotechnology

α-Ga2O3 Nanorod Array-Cu2O Microsphere p-n Junctions for Self-Powered Spectrum-Distinguishable Photodetectors

Chenran He et al.

ACS APPLIED NANO MATERIALS (2019)

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Article Nanoscience & Nanotechnology

Surface-Passivated AlGaN Nanowires for Enhanced Luminescence of Ultraviolet Light Emitting Diodes

Haiding Sun et al.

ACS PHOTONICS (2018)

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Review Materials Science, Multidisciplinary

III-V Semiconductor Single Nanowire Solar Cells: A Review

Ziyuan Li et al.

ADVANCED MATERIALS TECHNOLOGIES (2018)

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Article Multidisciplinary Sciences

Gallium nitride nanowire as a linker of molybdenum sulfides and silicon for photoelectrocatalytic water splitting

Baowen Zhou et al.

NATURE COMMUNICATIONS (2018)

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Article Chemistry, Multidisciplinary

Surface Passivation of GaN Nanowires for Enhanced Photoelectrochemical Water-Splitting

Purushothaman Varadhan et al.

NANO LETTERS (2017)

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Article Multidisciplinary Sciences

Interplay of hot electrons from localized and propagating plasmons

Chung V. Hoang et al.

NATURE COMMUNICATIONS (2017)

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Article Materials Science, Multidisciplinary

Identifying a doping type of semiconductor nanowires by photoassisted kelvin probe force microscopy as exemplified for GaN nanowires

Xiaoxiao Sun et al.

OPTICAL MATERIALS EXPRESS (2017)

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Article Multidisciplinary Sciences

Semiconductor interfacial carrier dynamics via photoinduced electric fields

Ye Yang et al.

SCIENCE (2015)

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Article Multidisciplinary Sciences

Three-terminal heterojunction bipolar transistor solar cell for high-efficiency photovoltaic conversion

A. Marti et al.

NATURE COMMUNICATIONS (2015)

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Article Multidisciplinary Sciences

Switched photocurrent direction in Au/TiO2 bilayer thin films

Hongjun Chen et al.

SCIENTIFIC REPORTS (2015)

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Article Multidisciplinary Sciences

Tuning the surface Fermi level on p-type gallium nitride nanowires for efficient overall water splitting

M. G. Kibria et al.

NATURE COMMUNICATIONS (2014)

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Article Chemistry, Multidisciplinary

Toward Complementary Ionic Circuits: The npn Ion Bipolar Junction Transistor

Klas Tybrandt et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2011)

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Article Nanoscience & Nanotechnology

Triple-twin domains in Mg doped GaN wurtzite nanowires: structural and electronic properties of this zinc-blende-like stacking

Jordi Arbiol et al.

NANOTECHNOLOGY (2009)

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Balancing the Photo-Induced Carrier Transport Behavior at Two Semiconductor Interfaces for Dual-Polarity Photodetection

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