Self-Powered Photodetector Based on Electric-Field-Induced Effects in MAPbI<sub>3</sub> Perovskite with Improved Stability

Saraf, Rohit; Maheshwari, Vivek

doi:10.1021/acsami.8b05860

Cited by 71 publications

(40 citation statements)

References 30 publications

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“…Clearly, the rhodium-based double perovskites examined in this study, which display excitonic features in the visible and UV regions, may be useful for applications in photoelectric detectors. MAPbBr 3 is an exemplar photovoltaic semiconductor, with an experimental bandgap of 2.33 eV (Niemann et al, 2016;Varadwaj et al, 2018), which has been recognized as a material for photovoltaics and photodetectors (Saraf and Maheshwari, 2018).…”

Section: Optical Propertiesmentioning

confidence: 99%

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

Varadwaj

Marques

2020

Front. Chem.

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A-Site doping with alkali ions, and/or metal substitution at the B and B ′-sites, are among the key strategies in the innovative development of A 2 BB ′ X 6 halide double perovskite semiconducting materials for application in energy and device technologies. To this end, we have investigated an intriguing series of five halide-based non-toxic systems, A 2 AgRhCl 6 (A = Li, Na, K, Rb, and Cs), using density functional theory at the SCAN-rVV10 level. The lattice stability and bonding properties emanating from this study of A 2 AgRhCl 6 matched well with those that have already been synthesized, characterized and discussed [viz. Cs 2 AgBiX 6 (X = Cl, Br)]. Exploration of traditional and recently proposed tolerance factors has enabled us to identify A 2 AgRhCl 6 (A = K, Rb and Cs) as stable double perovskites. The band structure and density of states calculations suggested that the electronic transition from the top of the valence band [Cl(3p)+Rh(4d)] to the bottom of the conduction band [(Cl(3p)+Rh(4d)] is inherently direct at the X-point of the first Brillouin zone. The (non-spin polarized) bandgap of these materials was found in the range 0.57-0.65 eV with SCAN-rVV10, which were substantially smaller than those computed with hybrid HSE06 and PBE0, and quasi-particle GW methods. This, together with the appreciable refractive index and high absorption coefficient in the region covering the range 1.0-4.5 eV, enabled us to demonstrate that A 2 AgRhCl 6 (A = K, Rb, and Cs) are likely candidate materials for photoelectric applications. The results of our phonon calculations at the harmonic level suggested that the Cs 2 AgRhCl 6 is the only system that is dynamically stable (no imaginary frequencies found around the high symmetry lines of the reciprocal lattice), although the elastic moduli properties suggested all five systems examined are mechanically stable. Keywords: A 2 AgRhCl 6 halide double perovskites, first-principles studies, optoelectronic properties, geometrical, dynamical and mechanical stabilities, DOS and band structures Varadwaj and Marques Stable Halide Double Perovskites

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Section: Optical Propertiesmentioning

confidence: 99%

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

Varadwaj

Marques

2020

Front. Chem.

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“…Recently, ferroelectric semiconductors have proven to be potential candidates for photoelectric conversion materials because it can be polarized by external electric field and produce a built‐in electric field to separate electron–hole pairs . Thus, it is an alternative way to construct self‐driven photodetector by exploiting polarization‐induced electric filed effects . To take full advantage of this effect, the ferroelectric materials are required to have high ferroelectricity or be applied at high polarized electric fields.…”

Section: Introductionmentioning

confidence: 99%

Semitransparent, Flexible, and Self‐Powered Photodetectors Based on Ferroelectricity‐Assisted Perovskite Nanowire Arrays

Cao

Tian

Wang

et al. 2019

Adv Funct Materials

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Transparent and flexible photodetectors hold great promise in next-generation portable and wearable optoelectronic devices. However, most of the previously reported devices need an external energy power source to drive its operation or require complex fabrication processes. Herein, designed is a semitransparent, flexible, and self-powered photodetector based on the integrated ferroelectric poly(vinylidene-fluoride-trifluoroethylene) (P(VDF-TrFE)) and perovskite nanowire arrays on the flexible polyethylene naphthalate substrate via a facile imprinting method. Through optimizing the treatment conditions, including polarization voltage, polarization time, and the concentration of P(VDF-TrFE), the resulting device exhibits remarkable detectivity (7.3 × 10 12 Jones), fast response time (88/154 µs) at zero bias, as well as outstanding mechanical stability. The excellent performance is attributed to the efficient charge separation and transport originating from the highly oriented 1D transport pathway and the polarization-induced internal electric field within P(VDF-TrFE)/perovskite hybrid nanowire arrays.

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“…Organic–inorganic hybrid perovskites have emerged as a promising enabler for many interesting optical properties and application including photovoltaic and emissive properties, photomechanical effect, or nonlinear optics. [1c,10] Here we demonstrate a proof‐of‐concept photodetector based on multiphysics coupled nanogold–perovskite films, featuring facile preparation, ultrahigh photosensitivity with pA scale dark current (enabling pW scale detection limit), and UV–vis–NIR photoresponse. This methodology affords a route to ultrasensitive broadband photodetectors.…”

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confidence: 99%

Facile Nanogold–Perovskite Enabling Ultrasensitive Flexible Broadband Photodetector with pW Scale Detection Limit

Luo

Zhao

Liang

et al. 2018

Advanced Optical Materials

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Self-Powered Photodetector Based on Electric-Field-Induced Effects in MAPbI₃ Perovskite with Improved Stability

Cited by 71 publications

References 30 publications

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

Semitransparent, Flexible, and Self‐Powered Photodetectors Based on Ferroelectricity‐Assisted Perovskite Nanowire Arrays

Facile Nanogold–Perovskite Enabling Ultrasensitive Flexible Broadband Photodetector with pW Scale Detection Limit

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Self-Powered Photodetector Based on Electric-Field-Induced Effects in MAPbI3 Perovskite with Improved Stability

Cited by 71 publications

References 30 publications

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

The Cs2AgRhCl6 Halide Double Perovskite: A Dynamically Stable Lead-Free Transition-Metal Driven Semiconducting Material for Optoelectronics

Semitransparent, Flexible, and Self‐Powered Photodetectors Based on Ferroelectricity‐Assisted Perovskite Nanowire Arrays

Facile Nanogold–Perovskite Enabling Ultrasensitive Flexible Broadband Photodetector with pW Scale Detection Limit

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Self-Powered Photodetector Based on Electric-Field-Induced Effects in MAPbI₃ Perovskite with Improved Stability