CVD-deposited hybrid lead halide perovskite films for high-responsivity, self-powered photodetectors with enhanced photo stability under ambient conditions

Pammi, S.V.N.; Maddaka, Reddeppa; Tran, Van‐Dang; Eom, Ji‐Ho; Pecunia, Vincenzo; Majumder, Sutripto; Kim, Moon‐Deock; Yoon, Soon Gil

doi:10.1016/j.nanoen.2020.104872

Cited by 64 publications

(35 citation statements)

References 43 publications

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“…Inorganic metal perovskite QDs (PQDs) CsPbX 3 (X = Cl, Br, I) possess unique optical properties, such as narrow photoluminescence (PL) peak, tunable PL wavelength (400–700 nm), and high quantum efficiency at room temperature, [ 1,2 ] making it a promising active material system for opto‐electronic devices such as light‐emitting diodes (LEDs), [ 3,4 ] tandem solar cells, [ 5,6 ] detectors, [ 7,8 ] and lasers. [ 9,10 ] Due to the low formation energy of PQDs, they are easy to synthesize by combining the elemental components in solution or solid‐state under low temperature.…”

Section: Introductionmentioning

confidence: 99%

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Sun

Tan

Song³

et al. 2021

Advanced Optical Materials

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All‐inorganic perovskite quantum dots (QDs) have attracted enormous attention owing to their outstanding linear and nonlinear optical properties along with various promising photonic applications. Herein, 3D direct writing of CsPbI3 QDs in glass by engineering the ultrafast laser‐induced thermal effect is reported. Erasing and re‐writing along with multilayer writing are also demonstrated. The CsPbI3 QDs exhibit efficient deep‐red photoluminescence (PL) with internal quantum efficiency of 23%. The CsPbI3 QDs show strong two‐photon excited PL and optical limiting response to ultrafast laser pulses. The two‐photon absorption (TPA) coefficient is determined to be 9.76 × 10–11 cm W−1. Furthermore, the technique of photoinduced thermal engineering writing shows generality to pattern CsPbBr3 and CsPbCl3 QDs in glass and is also demonstrated to achieve perovskite line structures with a width of 800 nm beyond the diffraction limit. CsPbI3 QDs in glass have excellent stability under room conditions and ultraviolet light irradiation. The present technique of photoinduced thermal engineering offers a new prospect to directly construct CsPbI3 QDs in the glass. The attractive linear and nonlinear optical response of CsPbI3 QDs implies a plethora of potential applications in high‐resolution imaging, optical storage, and optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Sun

Tan

Song³

et al. 2021

Advanced Optical Materials

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“…[ 15–20 ] This is undesirable, given that poor film quality has been generally linked to lower charge carrier mobility and a higher density of recombination centers. [ 5,21–24 ] Consequently, various strategies have been developed to improve film quality, both using solution‐based methods (e.g., additive‐assisted spin coating; electric‐field‐assisted spray coating; and two‐stage electric‐field‐assisted reactive deposition) and vapor‐based methods (e.g., vapor‐assisted solution process (VASP); chemical vapor deposition (CVD); and thermal evaporation). [ 15–20,25–32 ] Among these methods, multi‐zone CVD is particularly attractive because it allows a robust control of the film growth conditions through the fine‐tuning of the process parameters (i.e., the pressure, gas flow rate, and temperature of the precursors; and the temperature of the substrate).…”

Section: Introductionmentioning

confidence: 99%

“…[ 29,31 ] It is noteworthy that the optoelectronic performance of perovskites and perovskite‐inspired materials closely depends on the film quality, with films of superior morphology exhibiting reduced recombination rates, higher carrier lifetimes, and larger carrier mobilities. [ 2,5,21–24 ] Therefore, it has yet to be established how CVD could be harnessed to achieve high‐quality bismuth‐based PIM films. Given the potential that CVD has manifested in lead‐based perovskite optoelectronics, bridging this knowledge gap in CVD for bismuth‐based PIM film growth could help realize the full optoelectronic potential of these environmentally friendly materials.…”

Section: Introductionmentioning

confidence: 99%

Engineering Chemical Vapor Deposition for Lead‐Free Perovskite‐Inspired MA₃Bi₂I₉ Self‐Powered Photodetectors with High Performance and Stability

Vuong

Pammi

Pasupuleti

et al. 2021

Advanced Optical Materials

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Lead‐free perovskite‐inspired materials (PIMs) have attracted great interest in optoelectronics, as they feature electronic properties similar to mainstream lead‐based perovskites but are not burdened by the same toxicity issues. However, PIM photodetectors to date have not delivered efficiencies and stability on par with benchmark technologies. With a focus on methylammonium bismuth iodide (MA3Bi2I9)—a prominent lead‐free PIM—this study overcomes this challenge by growing the photoactive material through an engineered chemical vapor deposition (CVD) approach. While the commonplace one‐tube (1T)‐CVD approach delivers films with disconnected grains and large pinholes, a two‐tube (2T)‐CVD approach is developed that enables the growth of smoother films with superior, compact morphology. The considerable optoelectronic potential of 2T‐CVD MA3Bi2I9 films is demonstrated by realizing high‐performance self‐powered photodetectors, which deliver a responsivity and specific detectivity as high as 0.28 A W–1 and 8.8 × 1012 Jones, respectively, under UV illumination—i.e., approximately twice as large as the 1T‐CVD counterparts. Further, nonencapsulated 2T‐CVD devices exhibit considerable long‐term moisture stability, with an attenuation of their photoresponse of ≤3% over 100 days. These results demonstrate that 2T‐CVD offers a promising platform that can catalyze the development of high‐performance lead‐free perovskite‐inspired optoelectronics.

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“…Nevertheless, MAPbX 3 commonly suffers from poor thermal and moisture stability, [10] and researchers have to fabricate MAPbX 3 thin films under vacuum via chemical vapor deposition method to guarantee their stability. [11][12][13][14][15][16] Owing to a lower Goldschmidt tolerance factor by replacing MA groups with Cs atoms, [17] CsPbBr 3 quantum dots (QDs) fabricated at atmosphere have demonstrated an improved stability, e.g., as exposed to humid air (90%-95% RH) over several weeks without obvious degradation. [18] All-inorganic CsPbBr 3 colloidal QDs are also available for large-scale fabrication, promoting potential industrialization of stable and high-performance photodetectors.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Spatial Light Confinement of All Inorganic Perovskite Photodetectors Based on Hybrid Plasmonic Nanostructures

Shen

et al. 2020

Small

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3D incident light confinement by radical electromagnetic fields offers a facile and novel way to break through the performance limit of inorganic perovskite CsPbBr3 quantum dots (QDs). Herein, metallic nanoparticles decorated anodic aluminum oxide (AAO) hybrid plasmonic nanostructures with geometric control are first proposed for cyclic light utilization of perovskite photodetectors, enabled by spatially extended light confinement. The drastic multiple interference induced by plasmonic coupling within AAO matrixes are generated as a function of pore sizes, which can effectively collect the transmitted photons back to the surface. In addition, the self‐assembled metallic nanoparticles simultaneously concentrate the incident and reflected light beams into the CsPbBr3 QD layers. The light confinement inherently stems from the metallic nanoparticles due to the variation of the near surface electromagnetic fields. As a result, perovskite photodetectors based on Al nanoparticles/AAO hybrid plasmonic nanostructures with a pore size of 220 nm exhibit enhanced photoresponse behavior with remarkably increased photocurrent by ≈43× and maintain low dark current under 490 nm light illumination at 1 V.

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CVD-deposited hybrid lead halide perovskite films for high-responsivity, self-powered photodetectors with enhanced photo stability under ambient conditions

Cited by 64 publications

References 43 publications

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Engineering Chemical Vapor Deposition for Lead‐Free Perovskite‐Inspired MA₃Bi₂I₉ Self‐Powered Photodetectors with High Performance and Stability

Enhanced Spatial Light Confinement of All Inorganic Perovskite Photodetectors Based on Hybrid Plasmonic Nanostructures

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CVD-deposited hybrid lead halide perovskite films for high-responsivity, self-powered photodetectors with enhanced photo stability under ambient conditions

Cited by 64 publications

References 43 publications

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Highly Emissive Deep‐Red Perovskite Quantum Dots in Glass: Photoinduced Thermal Engineering and Applications

Engineering Chemical Vapor Deposition for Lead‐Free Perovskite‐Inspired MA3Bi2I9 Self‐Powered Photodetectors with High Performance and Stability

Enhanced Spatial Light Confinement of All Inorganic Perovskite Photodetectors Based on Hybrid Plasmonic Nanostructures

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Engineering Chemical Vapor Deposition for Lead‐Free Perovskite‐Inspired MA₃Bi₂I₉ Self‐Powered Photodetectors with High Performance and Stability