A Flexible Plasmonic-Membrane-Enhanced Broadband Tin-Based Perovskite Photodetector

Ma, Xue; Xu, Yunkun; Li, Siqi; Lo, Tsz Wing; Zhang, Baolin; Rogach, Andrey L.; Lei, Dangyuan

doi:10.1021/acs.nanolett.1c03050

Cited by 24 publications

(18 citation statements)

References 56 publications

(74 reference statements)

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“…For comparison, the performance of Pb-free THP PDs with different device structures is summarized in Figure 5f; and Table S4 (Supporting Information). [20][21][22]26,27,[36][37][38][39][40][41][42] Most of the THP-based PDs previously reported by other groups exhibit high responsivity, but show low specific detectivity and slow response speed. It should be stressed that our PEA 2 SnI 4based PDs exhibit higher photosensing performance compared with previously reported THP-based PDs (Table S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Fast and Highly Sensitive Photodetectors Based on Pb‐Free Sn‐Based Perovskite with Additive Engineering

Yun

Lee

Kim

et al. 2022

Advanced Optical Materials

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Organic–inorganic halide perovskites have been widely investigated for the fabrication of photodetectors because of their excellent optoelectronic properties. However, the toxicity of Pb‐based perovskites and the lack of manufacturing technology in air limits the commercialization of perovskite‐based photodetectors. Tin halide perovskite (THP) is a promising candidate to replace Pb‐based perovskites due to its low toxicity and potential commercialization. However, THP suffers poor stability in air because Sn2+ is easily oxidized to Sn4+. This “self‐doping” effect not only degrades device performance rapidly, but also makes it difficult to fabricate THP‐based devices in air. Here, Pb‐free Sn‐based 2D perovskite PEA2SnI4 films with tin fluoride (SnF2) additive are prepared in air using a nitrogen quenching hot casting method. The photodetectors with an optimal SnF2 concentration of 20% exhibit a fast response speed of 0.56 ms and an excellent specific detectivity of 6.32 × 1013 Jones, the best combination of THP‐based photodetectors reported hitherto. The SnF2 additive is found to suppress the formation of Sn vacancies and improve the crystallinity of PEA2SnI4 films. The work provides an air‐processing technology of Pb‐free perovskite, which is easy to commercialize, and SnF2 additive engineering offering an effective way to demonstrate high performance photodetectors and image recognition applications.

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Section: Resultsmentioning

confidence: 99%

Fast and Highly Sensitive Photodetectors Based on Pb‐Free Sn‐Based Perovskite with Additive Engineering

Yun

Lee

Kim

et al. 2022

Advanced Optical Materials

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“…Our flexible photodetectors showed a high EQE-Bandwidth product of 119 kHz under −0.6 V bias. Figure 4i summarizes the EQE-Bandwidth product of reported flexible photodetectors, [60][61][62][63][64][65][66][67] and our detectors show about one order magnitude larger value under a lower bias voltage, indicating outstanding detection capability. The performance comparisons with other morphology of CsPbI 3 photodetectors and flexible photodetectors are presented in Tables S1 and S2 (Supporting Information), respectively.…”

Section: Flexible Device Performance With Excellent Eqe-bandwidth Pro...mentioning

confidence: 89%

Low‐Temperature Crystallized and Flexible 1D/3D Perovskite Heterostructure with Robust Flexibility and High EQE‐Bandwidth Product

Feng

et al. 2023

Adv Funct Materials

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All-inorganic perovskite cesium lead triiodide (CsPbI 3 ) has attracted much attention among the perovskite family due to its excellent optoelectronic properties and chemical stability. However, the high-temperature crystallization process makes CsPbI 3 less compatible with commercially flexible substrates, limiting its application into flexible optoelectronics. Here, a cation of 1-(3-aminopropyl)-2pyrrolidinone (APP) is reported that can form 1D (APP)PbI 3 perovskite as templates, and significantly reduce the CsPbI 3 black-phase transition energy with a low annealing temperature of 75 °C, which further enables a flexible (APP)PbI 3 /γ-CsPbI 3 (1D/3D) heterostructure photodetector on ITO/ PET substrate. A high external quantum efficiency (EQE) greater than 2377% is observed along the orientated 1D/3D heterostructure. The high gain and low noise result in a high specific detectivity (D*) over 10 12 Jones under −0.6 V low bias. The optimized device structure brings a high EQE × bandwidth product of 119 kHz under a low driving bias. Due to the high toughness of orientated APP + ions and the face-connected [PbI 3 ] − chains structure as a strong energy absorber, the flexible photodetector also shows excellent phase stability and impressive flexibility, remaining >90% initial responsivity after over 20 000 times bending with potential flexible imaging application in harsh environments.

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“…In addition to LHP-based PQDs, lead-free PQDs have also been actively researched to realize an environmentally-friendly photodetector. Ma et al synthesized lead-free CsSnBr 3 QDs and introduced a plasmonic/dielectric nanostructure to optimize the performance of a flexible photodetector (Figure 6g) [165]. Plasmonic Ag nanoparticles (NPs) were applied to improve the light absorption capability of the CsSnBr 3 PQDs through localized surface plasmon resonance.…”

Section: D Lead Halide Perovskite Quantum Dotsmentioning

confidence: 99%

2D Material and Perovskite Heterostructure for Optoelectronic Applications

Miao

Liu

et al. 2022

Nanomaterials

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Optoelectronic devices are key building blocks for sustainable energy, imaging applications, and optical communications in modern society. Two-dimensional materials and perovskites have been considered promising candidates in this research area due to their fascinating material properties. Despite the significant progress achieved in the past decades, challenges still remain to further improve the performance of devices based on 2D materials or perovskites and to solve stability issues for their reliability. Recently, a novel concept of 2D material/perovskite heterostructure has demonstrated remarkable achievements by taking advantage of both materials. The diverse fabrication techniques and large families of 2D materials and perovskites open up great opportunities for structure modification, interface engineering, and composition tuning in state-of-the-art optoelectronics. In this review, we present comprehensive information on the synthesis methods, material properties of 2D materials and perovskites, and the research progress of optoelectronic devices, particularly solar cells and photodetectors which are based on 2D materials, perovskites, and 2D material/perovskite heterostructures with future perspectives.

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A Flexible Plasmonic-Membrane-Enhanced Broadband Tin-Based Perovskite Photodetector

Cited by 24 publications

References 56 publications

Fast and Highly Sensitive Photodetectors Based on Pb‐Free Sn‐Based Perovskite with Additive Engineering

Fast and Highly Sensitive Photodetectors Based on Pb‐Free Sn‐Based Perovskite with Additive Engineering

Low‐Temperature Crystallized and Flexible 1D/3D Perovskite Heterostructure with Robust Flexibility and High EQE‐Bandwidth Product

2D Material and Perovskite Heterostructure for Optoelectronic Applications

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