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Showing 1 to 14 of 14 for “"CsPbBr3"”.
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Synthesis of CsPbBr3 Quantum Dots for Photodetectors
… unique optoelectronic properties. we synthesized CsPbBr3 quantum dots (QDs) via the LARP method at RT and mixed them with conjugate polymer to fabricate nanocomposite photodetectors. We found that the size and optical properties of CsPbBr3 QDs are affected by varying the amount of precursor …
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Influence of mixed phases on the optoelectronic properties of Cs-Pb-Br compounds
… material system exhibits three ternary phases, CsPbBr3, Cs4PbBr6 and CsPb2Br5, which coexist in Cs–Pb–Br materials when deposited by various methods. The coexistence influences the light emission and by extension can affect the performance of the optoelectronic devices based on these compounds. …
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Cs-Pb-Br Core-shell Perovskite Microcrystals for Stability Improvement
… the ion salt nanocrystal. Among LHP NCs family, CsPbBr3 NCs are quite outstanding as they exhibit better luminescence properties, etc. They also demonstrate promising application prospects in the fields of optoelectronic devices, photovoltaics, and photocatalysis, occupying a central position in …
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Exciton Dynamics and Optical Properties of Lead Halide Perovskite Nanocrystals: From Nanorods to Nanocubes
Lead halide perovskites, particularly CsPbBr3, have emerged as leading light emitters for their spectral purity, brightness, and facile synthesis. Their soft, ionic lattice makes them unusually defect tolerant but introduces problems with stability. Additionally, dephasing mechanisms and coupling …
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Self-assembly of lead-halide-perovskite laser particles
… enabled me to coat the surface of individual CsPbBr3 laser particles using poly-catecholamine and thereby to improve optical properties and material stability against moisture. With CsPbBr3 microparticles coated with nano-scatterers, I realized disordered lasing based on Anderson localization. …
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Modelling of Structure-Property Relationships in Perovskites
… and composition. The photovoltaic materials CsPbBr3 and MAPbBr3 exhibit similar electronic properties. [1, 2] In this thesis, the phase-and-structure-dependent electronic properties of these two systems are calculated and compared. Slight distortion of the Br6 framework is responsible for …
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Synthesis of hybrid metalorganic/inorganic systems and doped halide thin films for photovoltaics
… component. The all-inorganic halide perovskite CsPbBr3 has been synthetized through a precipitation method. The perovskite CsPbBr3 has a semiconductor behavior, with an energy band gap useful in the PV application and has the advantages to not have any labile or expensive organic components.
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Synthetic Design of Optical Emitters
… ligands for lead halide perovskite (LHP) QDs of CsPbBr3. CsPbBr3 QDs have seen tremendous development in recent years, positing them as candidate emitters for quantum optical applications. Carefully constructing binding groups and backbones tailored to the LHP surface furnishes a class of …
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Development of new synthesis processes and deposition of Perovskites for use in photovoltaic applications in coupling with monocrystalline silicon substrates [Sviluppo di nuovi processi di sintesi e deposizione di perovskiti per l'uso in applicazioni fotovoltaiche in accoppiamento con substrati di silicio monocristallino]
… la produzione di cristalli e film di perovskite CsPbBr3 di alta qualità, depositati su diversi substrati, con eccellenti proprietà ottiche e stabilità, rendendoli adatti a una vasta gamma di applicazioni optoelettroniche. Inoltre, lo studio esplora la sintesi di compositi Cs4PbBr6/CsPbBr3, che …
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Ανάπτυξη και μελέτη τροποποιημένων πολυμερών πολυστυρενίου και πολυαιθυλενοξειδίου για αποδοτική εκπομπή φωτός από κβαντικές τελείες περοβσκίτη
… και ο χαρακτηρισμός κβαντικών τελειών περοβσκίτη CsPbBr3, με την in-situ ενσωμάτωση πολυμερούς στο πρόδρομο διάλυμα. Εξετάστηκε η επίδραση δύο διαφορετικών πολυμερών χαμηλού μοριακού βάρους τα οποία λειτούργησαν ως υποκαταστάτες, ενός Πολυστυρενίου με τερματικές ομάδες υδροξυλίου (PS-OH) και ενός …
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Perovskite interfaces with protective zinc compounds – DFT computation and related experiments
… the existence of the experimentally reported CsPbBr3/ZnS core-shell quantum dots may originate from unavoidable interfacial impurities or surface defects that are conductive to bonding. As an alternative, Zn₃(PO₄)₂ was prosed as a new shell material for FAPbI3. Different from ZnS, Zn₃(PO₄)₂ …
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Ultrafast Investigations of Exciton Dynamics in 0D and 2D Hybrid Semiconductor Nanomaterials
… spectroscopy. A temperature-dependent study of CsPbBr3 nanocrystals reveals that charging occurs in a significant fraction of photoexcited nanocrystals (>10%), which then exhibit a microsecond neutralization lifetime at cryogenic temperatures. The temperature-dependent dynamics are modeled to …
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Characterization of semiconductor nanocrystals using advanced solid-state NMR spectroscopy
… NCs. In specific, highly luminescent colloidal CsPbBr3 NCs caught our attention due to their bright (QY = 50–90%), stable, spectrally narrow, and broadly tunable photoluminescence. We made use of all NMR-active isotopes in CsPbBr3 NCs to determine the atomic termination of the NCs, as well as …
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Fabricating and Tailoring Halide Perovskites for Photovoltaic Applications
… in solar cell stability and efficiency. CsPbBr3, a fully inorganic halide perovskite, also shows great promise as a photo and gamma ray detector and like the other halide perovskites is known to support halide ion conductivity that contributes to device instability and reduced sensitivity …