Preparation and characterization of [H3N(CH2)6NH3]PbI4 and similar compounds with a layered perovskite structure

Mousdis, George A.; Papavassiliou, George C.; Raptopoulou, Catherine P.; Terzis, A.

doi:10.1039/a906161d

Cited by 75 publications

(52 citation statements)

References 7 publications

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“…[8][9][10][11]. In this paper, recent results on the excitonic spectra of these compounds are briefly reviewed, and some new findings are reported.…”

Section: R(ch2)nnh3]xmyxz [R(ch2)nnh(ch3h]xmyxz' [R(ch2)ns(ch3h]xmyxmentioning

confidence: 99%

Excitonic Bands in the Spectra of Some Organic-Inorganic Hybrid Compounds Based on Metal Halide Units

Papavassiliou

Mousdis

Koutselas

2001

Molecular Materials and Functional Polymers

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“…[8][9][10][11]. In this paper, recent results on the excitonic spectra of these compounds are briefly reviewed, and some new findings are reported.…”

Section: R(ch2)nnh3]xmyxz [R(ch2)nnh(ch3h]xmyxz' [R(ch2)ns(ch3h]xmyxmentioning

confidence: 99%

Excitonic Bands in the Spectra of Some Organic-Inorganic Hybrid Compounds Based on Metal Halide Units

Papavassiliou

Mousdis

Koutselas

2001

Molecular Materials and Functional Polymers

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“…It is presumed that small variations in a, b, c are due to the inherent instabilities of the 2D layer, attributed to the NH 3 head coupling to the inorganic layer. Moreover, it is possible that synthesis or re-crystallization with DMF slightly alters the unit cell [55,56]. Finally, it is noted that the actual geometrical packing of the OL molecule in the crystal structure of the associated 2D HOIS has not been determined yet and work on this is in progress.…”

Section: Morphological Properties Of Quasi-2d and 3d Hoismentioning

confidence: 99%

Mixtures of quasi-two and three dimensional hybrid organic-inorganic semiconducting perovskites for single layer LED

Vassilakopoulou

Papadatos

Zakouras

et al. 2017

Journal of Alloys and Compounds

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New blends of simply synthesized quasi two-dimensional (quasi-2D) hydrophobic perovskite semiconductors, employed in high performance light emitting diodes (LEDs) which function due to excitonic energy transfer effects, are reported. These materials are self-assembled blends of 2D, quasi-2D and three-dimensional (3D) hybrid organic-inorganic semiconductors HOIS blends manifest energy transfer effects, where adjacent nanoparticles of different band gap energies (E g ) transfer optical energy to those with the lowest E g ; the suggested light emission mechanism here. LED fabrication is attained via a single deposition of the hydrophobic mixture, reducing device complexity, cost and degradability. LED's diodic behavior is observed even under light albeit its photovoltaic and photoconductive quasi-2D and 3D components. LED devices exposed for over than four months under adverse laboratory conditions, showed stable light emission. Further research on this class of quasi-2D/3D HOIS mixtures is expected to lead to novel quantum electronic devices.2

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“…The alternating arrangement of high dielectric lead halide layers and low dielectric organic layers in 2D hybrid perovskites gives rise to an inherent multiple-quantum-well structure, which results in the formation of excitons with large exciton binding energies in the metal halide sheets. [1][2][3] The dielectric confinement effect entailing a sharp excitonic absorption peak can lead to interest- 4 with the known compound (C 7 H 7 N 2 )PbI 3 reveals an increase in bandgap on going from a 2D to a dimensionally reduced 1D topology. Besides, significant differences in the PL spectra of the halides are observed, which likely are due to recombination of self-trapped excitons stabilized through lattice distortions or permanent lattice defects in the compounds featuring broad PL emission bands.…”

Section: Introductionmentioning

confidence: 99%

Benzimidazolium Lead Halide Perovskites: Effects of Anion Substitution and Dimensionality on the Bandgap

Lermer

Harm

Birkhold

et al. 2016

Zeitschrift anorg allge chemie

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Abstract. We present the synthesis and structural characterization of a series of benzimidazolium-based lead halide perovskites including (C 7 H 7 N 2 ) 2 PbCl 4 , (C 7 H 7 N 2 ) 2 PbBr 4 , (C 7 H 7 N 2 ) 2 PbI 4 , and (C 7 H 7 N 2 )PbI 3 , which serves as a platform to investigate the change in optical properties as a function of the halide and the dimensionality of the inorganic sublattice. The structural similarity of the layered systems with A 2 MX 4 stoichiometry was verified by single-crystal X-ray diffraction and solid-state NMR spectroscopy. The optical properties were analyzed by absorption and photoluminescence (PL) measurements, confirming the

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Preparation and characterization of [H3N(CH2)6NH3]PbI4 and similar compounds with a layered perovskite structure

Cited by 75 publications

References 7 publications

Excitonic Bands in the Spectra of Some Organic-Inorganic Hybrid Compounds Based on Metal Halide Units

Excitonic Bands in the Spectra of Some Organic-Inorganic Hybrid Compounds Based on Metal Halide Units

Mixtures of quasi-two and three dimensional hybrid organic-inorganic semiconducting perovskites for single layer LED

Benzimidazolium Lead Halide Perovskites: Effects of Anion Substitution and Dimensionality on the Bandgap

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