Fabrication of rapid response self-powered photodetector using solution-processed triple cation lead-halide perovskite

Adams, Geoffrey Ryan; Shohag, Abu; Simpson, Ryan James; Parker, Helen E.; Okoli, Okenwa I.

doi:10.1088/2631-8695/ab7b38

Cited by 17 publications

(8 citation statements)

References 73 publications

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“…The responsivity and detectivity of self‐powered photodetectors obtained in the present study were compared with reported perovskite‐based sandwiched‐type devices, as shown in Figure . [ 8,19,42,45–52 ] The responsivity and detectivity reported in the present study are superior compared with prior relevant studies. The superior performance obtained from self‐powered photodetectors via CVD deposited perovskite films might be attributed to the high intrinsic quality of the perovskite films (high quality compact films and with no pinholes).…”

Section: Resultscontrasting

confidence: 62%

Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Pammi

Tran

Reddeppa

et al. 2020

Advanced Optical Materials

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Hybrid lead‐halide perovskite photodetectors represent a highly promising technology, but long‐term operational stability under ambient conditions must be improved before these devices can be deployed in real‐world applications. In consideration of the relationship between film quality and device stability, this work explored photodetectors based on bromine‐doped CH3NH3PbI3 (i.e., CH3NH3PbI3−xBrx, MAPbI3−xBrx in short form) perovskite layers deposited via chemical vapor deposition (CVD). These layers have good compactness and no pinholes, hence they enable sandwich‐type photodetectors with high performance in self‐powered mode. Under 632 nm illumination, these photodetectors achieve a level of responsivity as high as 45 A/W, along with a specific detectivity of 1.15 × 1014 Jones and an external quantum efficiency of 8.84 × 103%. It is important to note that these photodetectors exhibit outstanding operational stability that is superior to that of their pure‐iodide (i.e., CH3NH3PbI3, MAPbI3 in short form) counterparts. When the MAPbI3−xBrx devices are stressed under simulated solar illumination in ambient air, their photoresponse is maintained to within 29% loss of the original value for more than 500 h, while the photoresponse of the MAPbI3 devices is reduced by 62%. The key figures of merit of the fabricated devices and their operational level of photostability are expected to create new avenues for future outdoor photodetector applications.

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Section: Resultscontrasting

confidence: 62%

Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Pammi

Tran

Reddeppa

et al. 2020

Advanced Optical Materials

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“…R and D* were calculated depend on that noise in the current noise is mainly dominated by shot noise. Compared with a previous study [21] appeared responsivity 0.99 A/W where the detectivity of 8.9 × 10 12 Jones, related to the improved morphology with a decrease in grain size and vacancies, which is reflected in the high performance level of our photodetector. By using on/off ratio as a measurement of photodetector repeatability, we obtained a high capacity that allows the photodetector to be operated repeatedly and with the same efficiency without any damage to the photodetector, as shown in figure 6…”

Section: Thin Films and Photodetector Fabricationcontrasting

confidence: 56%

NiO Quantum dots Doped Triple Cation Perovskite CsMAFAPbI2Br2 Heterojunction Photodetector with High Responsivity

Alwadei¹,

Alshatwi²,

Alwadai³

et al. 2022

Adv. sci. technol. eng. syst. j.

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Optoelectronic devices applications based on Organic-inorganic perovskites are promising and effective low-cost energy materials due to their exceptional physical properties which include high carrier mobility, high optical absorption coefficient, and long carrier diffusion length. In the presented work, a TiO2/NiO+5% Fe quantum dots (QDs)-doped CsMAFAPbI2Br2 perovskite heterojunction broadband photodetector was fabricated on FTO/glass substrate. The photodetector can detect a wide range of wavelengths, from UV to Vis (100-800 nm), has high responsivity (0.99 A/W), and has excellent detectivity (8.9 × 10 12 Jones). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), atomic force microscopy (AFM), and electrical (I-V) characterization were used to measure the responsivity and detectivity of the photodetectors. Doping with NiO+5% Fe QDs protected the device from oxygen and moisture and improved the morphology of the perovskite by reducing pit defects. The results showed high performance and the potential of a NiO+5% Fe QDs-doped triple cation perovskite photodetector device.

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“…The lower RMS value for the CsI(PbBr 2 ) 0.99 (AgI) 0.01 perovskite film confirms the presence of additive AgI and that it can passivate the surficial morphology of the perovskite film. Also, the reduced surface roughness would produce fewer defects and traps in the interface between CsI(PbBr 2 ) 0.99 (AgI) 0.01 and Spiro-OMeTAD layers, resulting in efficient charge extraction. − …”

Section: Results and Discussionmentioning

confidence: 99%

Enhanced Inorganic CsPbIBr₂ Perovskite Film for a Sensitive and Rapid Response Self-Powered Photodetector

et al. 2020

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Inorganic cesium lead halide CsPbI x Br3–x (x = 0–3) perovskites have recently gained considerable attention as semiconductor materials for the fabrication of photodetectors due to their high thermal and environmental stability. However, preparing high-quality CsPbI x Br3–x perovskite films using a simple spin-coating method is challenging. This study focused on enhancing the performance of a solution-processed all-inorganic CsPbI x Br3–x (x = 1, CsPbIBr2) photodetector using a silver iodide (AgI) additive. Introducing a small amount of AgI into the CsPbIBr2 precursor solution resulted in perovskite films that were more uniform and exhibited compact surface morphology that improved crystallinity and electronic properties. To further explore the influence of the AgI-modified CsPbIBr2 perovskite film on the device performance, we fabricated a self-powered photodetector with the geometry of fluorine-doped tin oxide (FTO)/compact TiO2/CsI(PbBr2)0.99(AgI)0.01/2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro-OMeTAD)/Au. Photoresponse analysis revealed that the photoresponsivity, on/off ratio, and response time of the CsI(PbBr2)0.99(AgI)0.01 perovskite photodetector were improved. Notably, the CsI(PbBr2)0.99(AgI)0.01 perovskite device showed a higher responsivity and an impressive detectivity of 0.43 A/W and 2.46 × 1011 Jones, respectively, in comparison to the pristine CsPbIBr2 device. This work demonstrates the excellent potential of using inorganic CsI(PbBr2)0.99(AgI)0.01 perovskites in applications for high-performance photodetectors.

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Fabrication of rapid response self-powered photodetector using solution-processed triple cation lead-halide perovskite

Cited by 17 publications

References 73 publications

Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

NiO Quantum dots Doped Triple Cation Perovskite CsMAFAPbI2Br2 Heterojunction Photodetector with High Responsivity

Enhanced Inorganic CsPbIBr₂ Perovskite Film for a Sensitive and Rapid Response Self-Powered Photodetector

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Fabrication of rapid response self-powered photodetector using solution-processed triple cation lead-halide perovskite

Cited by 17 publications

References 73 publications

Bromine Doping of MAPbI3 Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Bromine Doping of MAPbI3 Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

NiO Quantum dots Doped Triple Cation Perovskite CsMAFAPbI2Br2 Heterojunction Photodetector with High Responsivity

Enhanced Inorganic CsPbIBr2 Perovskite Film for a Sensitive and Rapid Response Self-Powered Photodetector

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Product

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Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Bromine Doping of MAPbI₃ Films Deposited via Chemical Vapor Deposition Enables Efficient and Photo‐Stable Self‐Powered Photodetectors

Enhanced Inorganic CsPbIBr₂ Perovskite Film for a Sensitive and Rapid Response Self-Powered Photodetector