Facile synthesis of organic–inorganic hybrid perovskite CH3NH3PbI3 microcrystals

Jia, Xianyu; Hu, Ziyang; Zhu, Yubing; Weng, Tianyao; Wang, Jie; Zhang, Jing; Zhu, Yuejin

doi:10.1016/j.jallcom.2017.07.154

Cited by 18 publications

(11 citation statements)

References 36 publications

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“…Moreover, a large amount of heat is generated during the operation of a perovskite solar cell, so thermal stability is an important criterion for measuring the stability of perovskites. Accordingly, we used thermogravimetric analysis (TGA) to characterize the thermal stability of MAPbI 3 . It is found that the thermally annealed MAPbI 3 film begins to decompose at 200 °C, and is almost completely decomposed at 450 °C, while the decomposition temperature of the pulsed laser processed MAPbI 3 film is about 220 °C and completely decomposed at 480 °C.…”

Section: Resultsmentioning

confidence: 99%

Addressing the Reliability and Electron Transport Kinetics in Halide Perovskite Film via Pulsed Laser Engineering

Song

Tong

Liu

et al. 2019

Adv Funct Materials

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The long-term performance and stability of perovskites are adversely affected by their porous microstructure, tensile residual stress, and electron transport kinetics. Here, a high-speed pulsed laser processing technique is implemented to produce beneficial structural changes in organic-inorganic halide perovskites, including pore-free, crystalline structure, reduced defects, and tensile residual stress. Moreover, halide perovskite films can be converted from p-type to n-type semiconductor, which originates from crystal structure changes, giving rise to carrier dynamic changes. Comparing with traditional thermal annealing, residual tensile stress of perovskite thin film decreases by 40% after pulse laser processing, which significantly increases its stability. Pulse-laser-induced thermomechanical shock momentum can create pore-free perovskite thin films, contributing to much better reliability. Under humidity of 80% at room temperature for 500 h, the decomposition rate is reduced by more than two times, comparing thin films after pulsed laser processing with conventional thermal annealing. The thermal decomposition temperature of pulse-laser-processed perovskite thin film raises by 20 to about 220 °C. Pulse laser processing technique provides a scalable technique to tailor the structures in perovskite films with both temperature and loading control, further facilitates the design of perovskite-based devices for service under harsh conditions, and also contributes to high-performance optoelectronic applications.

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Section: Resultsmentioning

confidence: 99%

Addressing the Reliability and Electron Transport Kinetics in Halide Perovskite Film via Pulsed Laser Engineering

Song

Tong

Liu

et al. 2019

Adv Funct Materials

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“…To achieve better spherical forms of CsPbX 3 nanoparticles, Tang [83] used the CVD technique resulting in broad size distribution approximately 0.5 to 10 µm. To prepare perovskite NPs antisolvent precipitation [85] or low-temperature growth [53] synthe-ses are used. Chemical methods allow to variate shape and size and present usually a one step synthesis procedure, where size of obtained nanoparticles depends on the perovskite solution concentration, antisolvent choice [86], additional surfactants [87,88], and solution concentration.…”

Section: Fabrication Methodsmentioning

confidence: 99%

“…Chemical methods allow to variate shape and size and present usually a one step synthesis procedure, where size of obtained nanoparticles depends on the perovskite solution concentration, antisolvent choice [86], additional surfactants [87,88], and solution concentration. Manipulating these parameters, it is possible to obtain perovskite nanoparticles with the sizes ranging from a few nanometers [89] to a micrometer [85] or submicron size with a cubic shape [53].…”

Section: Fabrication Methodsmentioning

confidence: 99%

Halide‐Perovskite Resonant Nanophotonics

Makarov

Furasova

Tiguntseva

et al. 2018

Advanced Optical Materials

169

130

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Halide perovskites have emerged recently as promising materials for many applications in photovoltaics and optoelectronics. Recent studies of their optical properties suggest many novel opportunities for a design of advanced nanophotonic devices due to low-cost fabrication, high values of the refractive index, existence of excitons at room temperatures, broadband bandgap tunability, high optical gain and nonlinear response, as well as simplicity of their integration with other types of structures. This paper provides an overview of the recent progress in the study of optical effects originating from nanostructured perovskites, including their potential applications.

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“…The peak index of undoped and doped perovskite microrods (Figure a,b) displays a total absence of a tetragonal phase characteristic peak at 23.5° for pristine CH 3 NH 3 PbI 3 compared to the reference (ICSD no. 250735) CH 3 NH 3 PbI 3 perovskite with a cubic-phase symmetry. , During solution-doping, undoped and doped perovskite microrods displayed low-intensity intermediate-phase transformation of the solvent interaction after annealing, resulting in slow and continuous crystallization of perovskites. Because of the intercalation of the DMF solvent in the CH 3 NH 3 PbI 3 perovskite, three low intensity peaks were found near <10° (2θ = 6.53, 8.01, 9.56°) which might be due to the Lewis adduct, MAPbI 3 ·DMF complex formation, and led to a slight enlargement of the perovskite lattice structure.…”

Section: Resultsmentioning

confidence: 99%

Controlled Size Growth of Thermally Stable Organometallic Halide Perovskite Microrods: Synergistic Effect of Dual-Doping, Lattice Strain Engineering, Antisolvent Crystallization, and Band Gap Tuning Properties

Nazim

Kim

2020

ACS Omega

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Organometallic halide perovskites, as the light-harvesting material, have been extensively used for cost-effective energy production in high-performance perovskite solar cells, despite their poor stability in the ambient atmosphere. In this work, methylammonium lead iodide, CH 3 NH 3 PbI 3 , perovskite was successfully doped with KMnO 4 using antisolvent crystallization to develop micrometer-length perovskite microrods. Thus, the obtained KMnO 4 -doped perovskite microrods have exhibited sharp, narrow, and red-shifted photoluminescence band, as well as high lattice strain with improved thermal stability compared to undoped CH 3 NH 3 PbI 3 . During the synthesis of the KMnO 4 -doped perovskite microrods, a low boiling point solvent, anhydrous chloroform, was employed as an antisolvent to facilitate the emergence of controlled-size perovskite microrods. The as-synthesized KMnO 4 -doped perovskite microrods retained the pristine perovskite crystalline phases and lowered energy band gap (∼1.57 eV) because of improved light absorption and narrow fluorescence emission bands (fwhm < 10 nm) with improved lattice strain (∼4.42 × 10 −5 ), Goldsmith tolerance factor (∼0.89), and high dislocation density (∼5.82 × 10 −4 ), as estimated by Williamson−Hall plots. Thus, the obtained results might enhance the optical properties with reduced energy band gap and high thermal stability of doped-perovskite nanomaterials in ambient air for diverse optoelectronic applications. This study paves the way for new insights into chemical doping and interaction possibilities in methylamine-based perovskite materials with various metal dopants for further applications.

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Facile synthesis of organic–inorganic hybrid perovskite CH3NH3PbI3 microcrystals

Cited by 18 publications

References 36 publications

Addressing the Reliability and Electron Transport Kinetics in Halide Perovskite Film via Pulsed Laser Engineering

Addressing the Reliability and Electron Transport Kinetics in Halide Perovskite Film via Pulsed Laser Engineering

Halide‐Perovskite Resonant Nanophotonics

Controlled Size Growth of Thermally Stable Organometallic Halide Perovskite Microrods: Synergistic Effect of Dual-Doping, Lattice Strain Engineering, Antisolvent Crystallization, and Band Gap Tuning Properties

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