A self-powered, flexible photodetector based on perovskite nanowires with Ni-Al electrodes

Tao, Jiayou; Xiao, Zhaojing; Wang, Jifei; Li, Chang; Sun, Xiaoxiang; Li, Fen; Zou, Xinchang; Liao, Gaohua; Zou, Zhijun

doi:10.1016/j.jallcom.2020.155311

Cited by 30 publications

(15 citation statements)

References 38 publications

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“…This method was also used by Tao et al to make flexible photodetectors that achieved a responsivity of 0.227 A cm −2 under an incident light power of 1 × 10 −8 W cm −2 and a high on/off ratio of 147. 220 Similarly, Cloutier et al converted a PbI 2 :Pb(SCN) 2 layer with MAI to produce MAPbI 3 NW networks on a Kapton substrate to produce flexible photodetectors. 221 The devices showed a high specific detectivity of 7.3 × 10 12 Jones and response times of 227.2 (rise) and 215.4 μs (decay).…”

Section: Oriented Halide Perovskite Nanostructures For Photodetectorsmentioning

confidence: 96%

“…Flexible photodetectors were fabricated using NWs grown on a flexible substrate and showed a stable response with an on/off ratio of >45. This method was also used by Tao et al to make flexible photodetectors that achieved a responsivity of 0.227 A cm –2 under an incident light power of 1 × 10 –8 W cm –2 and a high on/off ratio of 147 . Similarly, Cloutier et al converted a PbI 2 :Pb(SCN) 2 layer with MAI to produce MAPbI 3 NW networks on a Kapton substrate to produce flexible photodetectors .…”

Section: Advancements In Optoelectronics Based On Oriented Halide Per...mentioning

confidence: 99%

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Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

et al. 2021

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Oriented semiconductor nanostructures and thin films exhibit many advantageous properties, such as directional exciton transport, efficient charge transfer and separation, and optical anisotropy, and hence these nanostructures are highly promising for use in optoelectronics and photonics. The controlled growth of these structures can facilitate device integration to improve optoelectronic performance and benefit in-depth fundamental studies of the physical properties of these materials. Halide perovskites have emerged as a new family of promising and cost-effective semiconductor materials for next-generation highpower conversion efficiency photovoltaics and for versatile high-performance optoelectronics, such as light-emitting diodes, lasers, photodetectors, and high-energy radiation imaging and detectors. In this Review, we summarize the advances in the fabrication of halide perovskite nanostructures and thin films with controlled dimensionality and crystallographic orientation, along with their applications and performance characteristics in optoelectronics. We examine the growth methods, mechanisms, and fabrication strategies for several technologically relevant structures, including nanowires, nanoplates, nanostructure arrays, single-crystal thin films, and highly oriented thin films. We highlight and discuss the advantageous photophysical properties and remarkable performance characteristics of oriented nanostructures and thin films for optoelectronics. Finally, we survey the remaining challenges and provide a perspective regarding the opportunities for further progress in this field.

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Section: Oriented Halide Perovskite Nanostructures For Photodetectorsmentioning

confidence: 96%

Section: Advancements In Optoelectronics Based On Oriented Halide Per...mentioning

confidence: 99%

Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

et al. 2021

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“…[ 32,33 ] The asymmetric electrode contact is an effective method to fabricate Schottky junctions, which can induce the built‐in electric field owing to the different work functions of two electrodes. [ 34–39 ] Therefore, Schottky junctions can accelerate the separation of the photo‐induced charge carriers without applying the external bias. For example, Wu et al.…”

Section: Introductionmentioning

confidence: 99%

Applications of Lead‐Free Cs₂AgBiBr₆ Single Crystals in Photodetectors and Self‐Powered Photodetectors by Symmetric/Asymmetric Electrodes

Hao

Liu

Zhang

et al. 2022

Advanced Optical Materials

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Lead halide hybrid perovskites have been intensively explored as light‐harvesting materials owing to their unique optoelectrical characteristics and simple deposition method. However, the toxicity and instability problems are still hindering their further development and applications. Herein, stable lead‐free double perovskite Cs2AgBiBr6 single crystals (SCs) with outstanding photoelectric properties are prepared. When symmetric Au electrodes are used, the resulting photodetectors (PDs) can have broad spectral response, high responsivity of 4.88 A W−1, external quantum efficiency of 1100%, and detectivity of 1.22 × 1013 Jones, respectively. More interestingly, when asymmetric electrodes (Au and Ag) are used, the authors obtain the first reported self‐driven PD based on the lead‐free perovskite SC, to the best of the authors’ knowledge. The device exhibits good photoresponse properties at a bias of 0 V. Both devices hold short response time at µs scale, which are among the best reported lead‐free perovskite PDs. Both devices demonstrate decent stabilities in air without encapsulation. All results demonstrate that Cs2AgBiBr6 SCs have great potential in the application of optoelectronic devices.

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“…Since the first literature concerning all-inorganic cesium lead halide perovskites (CsPbX 3 , X = Cl, Br, and I) was published, related research studies have been performed in large quantities. Cesium lead halide semiconductors have attracted much attention in the fields of perovskite light-emitting diodes (PeLEDs), − perovskite solar cells, − and photodetectors , due to their superior optoelectronic properties. In particular, perovskite nanocrystals (NCs) are emerging as a new generation in light-emitting area based on several advantages, including low cost, solution process ability, tunable band gap, narrow full width at half-maximum (FWHM), and high photoluminescence quantum yield (PLQY).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Red Cesium Lead Bromoiodide Nanocrystals Chelating Phenylated Phosphine Ligands with Enhanced Stability

Peng

Yang

et al. 2021

ACS Omega

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Two new phosphine ligands, diphenylmethylphosphine (DPMP) and triphenylphosphine (TPP), were introduced onto cesium lead bromoiodide nanocrystals (CsPbBrI 2 NCs) to improve air stability in the ambient atmosphere. Incorporating DPMP or TPP ligands can also enhance film-forming and optoelectronic properties of the CsPbBrI 2 NCs. The results reveal that DPMP is a better ligand to stabilize the emission of CsPbBrI 2 NCs than TPP after storage for 21 days. The increased carrier lifetime and photoluminescence quantum yield (PLQY) of perovskite NCs are due to the surface passivation by DPMP or TPP ligands, which reduces nonradiative recombination at the trap sites. The DPMP and TPP-treated CsPbBrI 2 NCs were successfully utilized as red emitters for fabricating perovskite light-emitting diodes with enhanced performance and prolonged device lifetime relative to the pristine one.

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A self-powered, flexible photodetector based on perovskite nanowires with Ni-Al electrodes

Cited by 30 publications

References 38 publications

Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

Applications of Lead‐Free Cs₂AgBiBr₆ Single Crystals in Photodetectors and Self‐Powered Photodetectors by Symmetric/Asymmetric Electrodes

Synthesis of Red Cesium Lead Bromoiodide Nanocrystals Chelating Phenylated Phosphine Ligands with Enhanced Stability

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A self-powered, flexible photodetector based on perovskite nanowires with Ni-Al electrodes

Cited by 30 publications

References 38 publications

Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics

Applications of Lead‐Free Cs2AgBiBr6 Single Crystals in Photodetectors and Self‐Powered Photodetectors by Symmetric/Asymmetric Electrodes

Synthesis of Red Cesium Lead Bromoiodide Nanocrystals Chelating Phenylated Phosphine Ligands with Enhanced Stability

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Product

Resources

About

Applications of Lead‐Free Cs₂AgBiBr₆ Single Crystals in Photodetectors and Self‐Powered Photodetectors by Symmetric/Asymmetric Electrodes