Template-confined growth of copper halides micro-wire arrays for highly polarization-sensitive deep-ultraviolet photodetectors with a polarization sensitivity of 4.45

Li, Ying; Ma, Jingli; Liang, Wenqing; Tian, Yongzhi; Li, Xinjian; Wu, Di; Shi, Zhifeng; Fang, Xiaosheng

doi:10.1016/j.cej.2022.138531

Cited by 10 publications

(10 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The light intensity at different polarization angles is kept to be 500 μW/cm 2 during the measurement. The polarization angle (θ) is defined as the angle between the polarization direction and the NW axis. , Figure d shows the angle-dependent normalized photocurrent curve of the hBN/Gr/CH 3 NH 3 PbI 3 device, in which the output photocurrent presents two cycles of sine fluctuation with the polarization angle changing from 0 to 360°. The photocurrent reaches peaks when the incident light is polarized parallel to the CH 3 NH 3 PbI 3 NWs (θ = 0, 180, and 360°), and the valleys appear at the angle, where the incident light is polarized perpendicular to the CH 3 NH 3 PbI 3 NWs (θ = 90, 270°).…”

Section: Resultsmentioning

confidence: 99%

Mixed-Dimensional van der Waals Heterostructure for High-Performance and Air-Stable Perovskite Nanowire Photodetectors

Wang

Han

Mak

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

An organic–inorganic hybrid perovskite nanowire (NW), CH3NH3PbI3, shows great potential for high-performance photodetectors due to its excellent photoresponse. However, the inefficient carrier collection between the one-dimensional (1D) NWs and metallic electrodes, as well as degradation of the perovskite, limits the viability of the CH3NH3PbI3 NWs for commercial production. Here, we demonstrate a photodetector with a mixed-dimensional van der Waals heterostructure of hexagonal boron nitride (hBN)/graphene (Gr)/1D CH3NH3PbI3, which exhibits excellent responsivity and specific detectivity of up to 558 A/W and 2.3 × 1012 Jones, owing to the improved carrier extraction at the electrical contact between Gr and the NW. As for the atomic encapsulation of hBN, the device is extremely robust and maintains its outstanding performance for more than 2 months when exposed to air. Moreover, benefitting from the 1D geometry of the CH3NH3PbI3 NW, our device is highly sensitive to polarized light. The mixed-dimensional van der Waals heterostructure, hBN/Gr/1D CH3NH3PbI3, would provide a novel idea and protocol for fabricating high-performance and air-stable photoelectronic devices based on organic–inorganic hybrid perovskite NWs.

show abstract

Section: Resultsmentioning

confidence: 99%

Mixed-Dimensional van der Waals Heterostructure for High-Performance and Air-Stable Perovskite Nanowire Photodetectors

Wang

Han

Mak

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…For optoelectronic devices with vertical architecture structure, single-crystal-thin-films (SCTFs) have more advantages than bulk SCs. [107,133,134] Inspired by the preparation of SCs that use templates to limit the crystals growth along a certain direction, researchers have proposed a space-limited (SL) crystallization method for the preparation of SCTFs. As an example, Xu et al [38] Copyright 2018, Wiley-VCH.…”

Section: Space-limited Crystallization Strategymentioning

confidence: 99%

Recent Advances and Opportunities of Eco‐Friendly Ternary Copper Halides: A New Superstar in Optoelectronic Applications

Lin

et al. 2023

Advanced Materials

Self Cite

View full text Add to dashboard Cite

Recently, the newly‐emerging lead‐free metal‐halide materials with less toxicity and superior optoelectronic properties have received wide attention as the safer and potentially more robust alternatives to lead‐based perovskite counterparts. Among them, ternary copper halides (TCHs) have become a vital group due to their unique features, including abundant structural diversity, ease of synthesis, unprecedented optoelectronic properties, high abundance, and low cost. Although the recent efforts in this field have made certain progresses, some scientific and technological issues still remain unresolved. Herein, a comprehensive and up‐to‐date overview of recent progress on the fundamental characteristics of TCH materials and their versatile applications is presented, which contains topics such as: i) crystal and electronic structure features and synthesis strategies; ii) mechanisms of self‐trapped excitons, luminescence regulation, and environmental stability; and iii) their burgeoning optoelectronic devices of phosphor‐converted white light‐emitting diodes (WLEDs), electroluminescent LEDs, anti‐counterfeiting, X‐ray scintillators, photodetectors, sensors, and memristors. Finally, the current challenges together with future perspectives on the development of TCH materials and applications are also critically described, which is considered to be critical for accelerating the commercialization of these rapidly evolving technologies.

show abstract

“…Organic–inorganic hybrid perovskites (OIHP) have exhibited attractive optoelectronic performance due to their high optical absorption coefficient, long carrier lifetime, and large diffusion length. − One-dimensional NWs are promising building blocks for future nanoscale electronic/optoelectronic devices including photodetectors, transistors, memories, photovoltaics, and solar cells. − Compared to two-dimensional or three-dimensional structures, one-dimensional NWs represent a smaller dimension for transporting carriers, which can always possess lower carrier-scattering probability, longer carrier lifetime, and higher mobility . Besides, polarization-dependent light detection is an important function when detectors are fabricated with NWs. − Therefore, OIHP NWs have caught wide attention and show promising potential applications in optoelectronic devices. , …”

Section: Introductionmentioning

confidence: 99%

Template-Assisted Synthesis of a Large-Area Ordered Perovskite Nanowire Array for a High-Performance Photodetector

Huang

Ziółek

et al. 2023

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

One-dimensional (1D) organic–inorganic hybrid perovskite nanowires (NWs) with well-defined structures possess superior optical and electrical properties for optoelectronic applications. However, most of the perovskite NWs are synthesized in air, which makes the NWs susceptible to water vapor, resulting in large amounts of grain boundaries or surface defects. Here, a template-assisted antisolvent crystallization (TAAC) method is designed to fabricate CH3NH3PbBr3 NWs and arrays. It is found that the as-synthesized NW array has designable shapes, low crystal defects, and ordered alignment, which is attributed to the sequestration of water and oxygen in air by the introduction of acetonitrile vapor. The photodetector based on the NWs exhibits an excellent response to light illumination. Under the illumination of a 532 nm laser with 0.1 μW and a bias of −1 V, the responsivity and detectivity of the device reach 1.55 A/W and 1.21 × 1012 Jones, respectively. The transient absorption spectrum (TAS) shows a distinct ground state bleaching signal only at 527 nm, which corresponds to the absorption peak induced by the interband transition of CH3NH3PbBr3. Narrow absorption peaks (a few nanometers) indicate that the energy-level structures of CH3NH3PbBr3 NWs only have a few impurity-level-induced transitions leading to additional optical loss. This work provides an effective and simple strategy to achieve high-quality CH3NH3PbBr3 NWs, which exhibit potential application in photodetection.

show abstract

Template-confined growth of copper halides micro-wire arrays for highly polarization-sensitive deep-ultraviolet photodetectors with a polarization sensitivity of 4.45

Cited by 10 publications

References 68 publications

Mixed-Dimensional van der Waals Heterostructure for High-Performance and Air-Stable Perovskite Nanowire Photodetectors

Mixed-Dimensional van der Waals Heterostructure for High-Performance and Air-Stable Perovskite Nanowire Photodetectors

Recent Advances and Opportunities of Eco‐Friendly Ternary Copper Halides: A New Superstar in Optoelectronic Applications

Template-Assisted Synthesis of a Large-Area Ordered Perovskite Nanowire Array for a High-Performance Photodetector

Contact Info

Product

Resources

About