The expanding world of hybrid perovskites: materials properties and emerging applications

Brittman, Sarah; Adhyaksa, Gede W. P.; Garnett, Erik C.

doi:10.1557/mrc.2015.6

Cited by 149 publications

(110 citation statements)

References 147 publications

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“…In addition, their distinguished optical and electronic properties make these materials suitable for optoelectronic applications [1–3]. Methylammonium lead iodide (CH 3 NH 3 PbI 3 , MAPbI 3 ) has been the most studied material in the hybrid halide perovskite family, with the majority of the previous investigations focused on thin films for application in photovoltaic cells as light harvesting [4–7].…”

Section: Introductionmentioning

confidence: 99%

Evolution of Photoluminescence, Raman, and Structure of CH3NH3PbI3 Perovskite Microwires Under Humidity Exposure

Segovia

Miao

et al. 2018

Nanoscale Res Lett

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Self-assembled organic-inorganic CH3NH3PbI3 perovskite microwires (MWs) upon humidity exposure along several weeks were investigated by photoluminescence (PL) spectroscopy, Raman spectroscopy, and X-ray diffraction (XRD). We show that, in addition to the common perovskite decomposition into PbI2 and the formation of a hydrated phase, humidity induced a gradual PL redshift at the initial weeks that is stabilized for longer exposure (~ 21 nm over the degradation process) and an intensity enhancement. Original perovskite Raman band and XRD reflections slightly shifted upon humidity, indicating defects formation and structure distortion of the MWs crystal lattice. By correlating the PL, Raman, and XRD results, it is believed that the redshift of the MWs PL emission was originated from the structural disorder caused by the incorporation of H2O molecules in the crystal lattice and radiative recombination through moisture-induced subgap trap states. Our study provides insights into the optical and structural response of organic-inorganic perovskite materials upon humidity exposure.Electronic supplementary materialThe online version of this article (10.1186/s11671-018-2470-0) contains supplementary material, which is available to authorized users.

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Section: Introductionmentioning

confidence: 99%

Evolution of Photoluminescence, Raman, and Structure of CH3NH3PbI3 Perovskite Microwires Under Humidity Exposure

Segovia

Miao

et al. 2018

Nanoscale Res Lett

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“…A great attention has been paid to hybrid organic-inorganic perovskites. Among perovskite applications also fuel cells, gas sensors, memory devices, photocatalysis, non-linear optics, solar energy conversion for water splitting and decontamination must be mentioned [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Optical properties of zinc titanate perovskite prepared by reactive RF sputtering

Müllerová

Šutta

Medlín

et al. 2017

Journal of Electrical Engineering

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In this paper we report results from optical transmittance spectroscopy complemented with data on structure from XRD measurements to determine optical properties of a series of ZnTiO 3 perovskite thin films deposited on glass by reactive magnetron co-sputtering. The members of the series differ by the titanium content that was revealed as an origin of the changes not only in structure but also in dispersive optical properties. Low porosity has been discovered and calculated using the Bruggeman effective medium approximation. An apparent blue-shift of the optical band gap energies with increasing titanium content was observed. The observed band gap engineering is a good prospective for eg optoelectronic and photocatalytic applications of ZnTiO 3 .

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“…Such a class of compounds combines properties coming from two worlds, the organic and the inorganic, resulting from the intercalation of the two types of lattices. In fact, they possess excellent light absorption, large carrier diffusion length and mobility, and low defect activity, all properties typical of inorganic conventional semiconductors [5,6]. At the same time, they also show properties characteristic of organic materials such as easy molecular movement [7], a large dielectric constant, the presence of local dipole moments in the lattice [8], and long-range van der Walls interactions giving rise to soft low-energy phonon modes [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of molecular dipole orientation on the exciton binding energy ofCH3NH3PbI3

2016

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We present a simple interacting tight-binding model for excitons, which is used to investigate the dependence of the exciton binding energy of CH 3 NH 3 PbI 3 over the disorder induced by the molecular motion at room temperature. The model is fitted to the electronic structure of CH 3 NH 3 PbI 3 by using data from density-functional theory and Born-Oppenheimer ab initio molecular dynamics, and it is solved in the mean-field approximation. When a finite-scale analysis is performed to extract the energetic of the excitons at experimental concentrations we find that disorder in general reduces the binding energy of about 10%. This suggests that the excitonic properties of CH 3 NH 3 PbI 3 largely depend on the electronic structure of the PbI 3 inorganic lattice.

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The expanding world of hybrid perovskites: materials properties and emerging applications

Cited by 149 publications

References 147 publications

Evolution of Photoluminescence, Raman, and Structure of CH3NH3PbI3 Perovskite Microwires Under Humidity Exposure

Evolution of Photoluminescence, Raman, and Structure of CH3NH3PbI3 Perovskite Microwires Under Humidity Exposure

Optical properties of zinc titanate perovskite prepared by reactive RF sputtering

Effects of molecular dipole orientation on the exciton binding energy ofCH3NH3PbI3

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