Synthesis and optical properties of novel organic–inorganic hybrid nanolayer structure semiconductors

Zhang, Sanjun; Lanty, Gaëtan; Lauret, Jean‐sébastien; Deleporte, Emmanuelle; Audebert, Pierre; Galmiche, Laurent

doi:10.1016/j.actamat.2009.03.037

Cited by 133 publications

(147 citation statements)

References 32 publications

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“…In this context, organic-inorganic perovkites, having a chemical formula (R − NH3) 2 MX 4 where R is an organic chain, M is a metal and X a halogen, represent a natural hybrid system. Such perovskites present a great flexibility in their optical properties: the spectral position of the excitonic transitions can be tailored by substituting different halides X [2, 3], the photoluminescence efficiency can be tailored by changing the organic part R [4]. This kind of perovskites has been studied both in the framework of fundamental studies [2,3,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24] and of applications in optoelectronic as the active material in a distributed feedback laser for example [25].…”

Section: Pacs Numbers: Valid Pacs Appear Herementioning

confidence: 99%

“…As a result, changing the barrier composition may lead to opposite temperature behavior of the exciton transition energy. Ad- ditionally, the strain in the QW might be different depending on the nature of the barrier [4] and might also influence the exciton energy dependance on temperature. A detailed optical study of the temperature behaviour for several perovksites is under progress and should further clarify the exact role of the barrier composition.…”

Section: −mentioning

confidence: 99%

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Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Gauthron¹,

Lauret²,

Doyennette³

et al. 2010

Opt. Express

272

305

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We report on optical spectroscopy (photoluminescence and photoluminescence excitation) on twodimensional self-organized layers of (C6H5C2H4 − N H3)2P bI4 perovskite. Temperature and excitation power dependance of the optical spectra gives a new insight into the excitonic and phononic properties of this hybrid organic/inorganic semiconductor. In particular, exciton-phonon interaction is found to be more than one order of magnitude higher than in GaAs QWs. As a result, photoluminescence emission lines have to be interpreted in the framework of a polaron model. PACS numbers: Valid PACS appear hereOptical properties of soft materials have attracted much attention for years thanks to their potential applications in optoelectronics devices. In particular, these last years, an increasing number of studies are dedicated on hybrid organic-inorganic materials[1], due to the possibility of combining the properties both of inorganic materials (high mobility, electrical pumping, band engineering) and of organic materials (low cost technology, high luminescence quantum yield at room temperature). In this context, organic-inorganic perovkites, having a chemical formula (R − NH3) 2 MX 4 where R is an organic chain, M is a metal and X a halogen, represent a natural hybrid system. Such perovskites present a great flexibility in their optical properties: the spectral position of the excitonic transitions can be tailored by substituting different halides X [2, 3], the photoluminescence efficiency can be tailored by changing the organic part R [4]. This kind of perovskites has been studied both in the framework of fundamental studies [2,3,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24] and of applications in optoelectronic as the active material in a distributed feedback laser for example [25]. Recently the strong coupling regime between the perovskite exciton and the optical mode of a Pérot-Fabry microcavity has been demonstrated at room temperature in the UV range [5] and in the visible range [6,7]. The physical properties of these new polaritons have now to be investigated. In particular, the demonstration of polariton-polariton interactions which lead to polariton scattering would be a breakthrough for the physics of these new devices in the context of the low threshold polariton lasers [26,27,28]. To evaluate these possibilities, a good knowledge of the perovskite material electronic properties is needed. As an example, the energy of the phonons and the strength of the electron-phonon coupling will indicate whether an efficient relaxation of perovskite polaritons is conceivable. Additionally, the origin of the different perosvkite luminescence lines has to be clarified to improve the knowledge about the exciton which couples to the cavity mode. .In this paper, we report on the optical properties of a particular perovskite molecule, namely [bi-(phenethylammonium) tetraiodoplumbate]: (C 6 H 5 C 2 H 4 − N H 3 ) 2 − P bI 4 (named PEPI), absorbing and emitting in the green part of the visible range. Photoluminescence (PL) ...

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Section: Pacs Numbers: Valid Pacs Appear Herementioning

confidence: 99%

Section: −mentioning

confidence: 99%

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Gauthron¹,

Lauret²,

Doyennette³

et al. 2010

Opt. Express

272

305

View full text Add to dashboard Cite

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“…[8][9][10][11][12] The basic OIPCs have an AMX 3 cubic structure, where A denotes an organic ammonium cation, M a metal cation, and X a halogen anion (Cl − , Br − or I − ). 8 If the organic cation A is large and cannot fit into the dense cubic crystal, layered A 2 MX 4 structures are formed.…”

Section: -7mentioning

confidence: 99%

Excitons in ultrathin organic-inorganic perovskite crystals

et al. 2015

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We demonstrate the formation of large sheets of layered organic-inorganic perovskite (OIPC) crystals, as thin as a single unit cell, prepared by mechanical exfoliation. The resulting 2D OIPC nano sheets of 2.4 nm thickness are direct semiconductors with an optical band gap of 2.4 eV. They exhibit unusually strong light-matter interaction with an optical absorption as high as 25% at the main excitonic resonance, as well as bright photoluminescence. We extract an exciton binding energy of 490 meV from measurement of the series of excited exciton states. The properties of the excitons are shown to be strongly influenced by the changes in the dielectric surroundings. The environmental sensitivity of these ultrathin OIPC sheets is further reflected in the strong suppression of a thermally driven phase transition present in the bulk crystals.

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“…Due to reduced dimensionality, the bandgap and the exciton binding energy increased. The two dimensional structures of perovskites showed attractive optical properties like efficient photoluminescence, electroluminescence and non-linear optical effects due to strong quantum-confinement effect [10][11][12][13][14]. Important feature of these 2D perovskites is that they are more resistant to humidity than the 3D ones [15].…”

Section: Introductionmentioning

confidence: 99%

Studying of Perovskite Nanoparticles in PMMA Matrix Used As Light Converter for Silicon Solar Cell

Lipiński¹,

Socha²,

Kędra³

et al. 2017

Archives of Metallurgy and Materials

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The nanoparticles of CH 3 NH 3 PbBr 3 hybrid perovskites were synthesized. These perovskite nanoparticles we embedded in polymethyl methacrylate (PMMA) in order to obtain the composite, which we used as light converter for silicon solar cells. It was shown that the composite emit the light with the intensity maximum at about 527 nm when exited by a short wavelength (300÷450 nm) of light.The silicon solar cells were used to examine the effect of down-conversion (DC) process by perovskite nanoparticles embedded in PMMA. For experiments, two groups of monocrystalline silicon solar cells were used. The first one included the solar cells without surface texturization and antireflection coating. The second one included the commercial cells with surface texturization and antireflection coating. In every series of the cells one part of the cells were covered by composite (CH 3 NH 3 PbBr 3 in PMMA) layer and second part of cells by pure PMMA for comparison. It was shown that External Quantum Efficiency EQE of the photovoltaic cells covered by composite (CH 3 NH 3 PbBr 3 in PMMA) layer was improved in both group of the cells but unfortunately the Internal Quantum Efficiency was reduced. This reduction was caused by high absorption of the short wavelength light and reabsorption of the luminescence light. Therefore, the CH 3 NH 3 PbBr 3 perovskite nanoparticles embedded in PMMA matrix were unable to increase silicon solar cell efficiency in the tested systems.

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Synthesis and optical properties of novel organic–inorganic hybrid nanolayer structure semiconductors

Cited by 133 publications

References 32 publications

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Optical spectroscopy of two-dimensional layered (C_6H_5C_2H_4-NH_3)_2-PbI_4 perovskite

Excitons in ultrathin organic-inorganic perovskite crystals

Studying of Perovskite Nanoparticles in PMMA Matrix Used As Light Converter for Silicon Solar Cell

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