49 research outputs found
Dataset for Organometallic Perovskite Metasurfaces
No full textDataset supporting:
Behrad Gholipour et al. Organometallic Perovskite Metasurfaces. Advanced Materials.</span
Organometallic perovskite metasurfaces
No full textDielectric metamaterials are widely explored as low-loss alternative to their plasmonic counterparts, which suffer from substantial Ohmic losses at optical frequencies. Here we demonstrate that organometallic perovskites, emerging solution-processable materials with outstanding optoelectronic properties and high index of refraction, provide a platform for all-dielectric metamaterials operating at visible frequencies. We show organolead halide perovskite metasurfaces with structural colouring tunable across the visible spectrum through sub-wavelength structuring. Moreover, we demonstrate that nanostructured perovskite films exhibit enhanced photoluminescence. We observed a three-fold increase of the luminescence yield and comparable reduction of luminescence decay time in comparison with unstructured perovskites films. We argue that nanostructured, solution processable organometallic perovskites metamaterials prepared by nanoimprint could be a low cost solution for photovoltaic energy conversion, large-area light-emitting devices, and artificial colouring for display applications
Spectral control in metal halide perovskites metasurfaces
No full textWe demonstrate that nanostructuring and hybridization of perovskites with metasurfaces allow to engineer structural colour and radiative emission properties, providing new opportunities to control emissivity and directivity of light-emitting devices
The incorporation of CsCu2I3 nanocrystals into polydimethylsiloxane matrix for X- and γ-ray scintillators
No full textRaw data was presented in the following manuscript: T. Haposan, M. Makowski, D. Kowal, L.J. Diguna, M.E. Witkowski, S. Mahato, W. Drozdowski, A. Arramel, M.D. Birowosuto, The Incorporation of CsCu2I3 Nanocrystals into Polydimethylsiloxane Matrix for X- and γ-Ray Scintillators, Phys. Status Solidi RRL 19, (2025) 24010298. https://doi.org/10.1002/pssr.202400298.The attached ZIP contains data of radioluminescence (RL) as a function of temperature, pulse height spectra (PHS) and scintillation time profile (STP) of CsCu2I3 nanocrystals embedded in polydimethylsiloxane matrix.</p
Effect of dual-organic cations on the structure and properties of 2D hybrid perovskites as scintillators
No full textRaw data presented in the following manuscript: M.A. K. Sheikh, F. Maddalena, D. Kowal, M. Makowski, S. Mahato, R. Jedrzejewski, R. Bhattarai, M.E. Witkowski, K.J. Drozdowski, W. Drozdowski, C. Dang, T.D. Rhone, M.D. Birowosuto, Effect of Dual-Organic Cations on the Structure and Properties of 2D Hybrid Perovskites as Scintillators, ACS Applied Materials Interfaces 16, (2024) 25529-25539. https://doi.org/10.1021/acsami.4c01741Attached files consist of absorption spectra, photoluminescence (PL), time-resolved PL (TRPL), X-ray luminescence (RL) as a function of temeprature, low temperature thermoluminescence (ltTL) measurement data.</p
Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites
No full textRaw data presented in the manuscript: F. Maddalena, M. Makowski, C. Xiao, M.A.K. Sheikh, D. Kowal, M.E. Witkowski, K.J. Drozdowski, S. Mahato, C. Dujardin, R. Cala, E. Auffray, M.H. Mahyuddin, W. Drozdowski, M.D. Birowosuto, and C. Dang. Optimizing doping thresholds for enhanced scintillation in 2D hybrid organic–inorganic perovskites. FlatChem 47, (2024), 100701. https://doi.org/10.1016/j.flatc.2024.100701.Data consists of absorption spectra (ABS), photoluminescence (PL), time-resolved PL (TRPL), radioluminescence (RL), thermoluminescence (TL), time-resolved RL (TRRL), pulse height spectra (PHS), scintillation time profiles (STP) and Raman spectra of Ba1-xtBuxPbBr4 where X = 0, 0.1, 0.2 and 0.4.All files attached in ZIP format are split to contain full characterization data for 1 sample, the name of the ZIP corresponds with the sample compisiont.</p
Nanopatterning-enhanced perovskite luminophores
No full textWe demonstrate that nanopatterning of solution-processable metal-halide perovskite films can be used to control their luminescence spectra and lead to up to five-fold increase of luminescence yield
Scintillation properties and anomalous Ce3+ emission of Cs2NaREBr6:Ce3+ (RE = La,Y,Lu)
No full textApplied Science
Thermal quenching of Ce3+ emission in PrX3 (X = Cl, Br) by intervalence charge transfer
No full textApplied Science
High-light-output scintillator for photodiode readout: LuI3:Ce3+
No full textIn this paper, we investigated the scintillation properties of LuI3:Ce3+. Radioluminescence, light output, energy resolution, and ?-scintillation decay are reported. We find an extremely high light output of 98?000±10?000?photons/MeV. LuI3:Ce3+ also gives a very high electron-hole (e-h) pair response when it is coupled with an avalanche photodiode (APD) (92?000±9000?e?h?pairs?MeV). With an APD, a best energy resolution (full width at half maximum over the peak position) of 3.3%±0.3% for 662?keV ? quanta is observed. A combination of an extremely high light output and a good energy resolution makes LuI3:Ce3+ an ideal scintillator for radiation sensor applications. Some drawbacks due to the hygroscopicity and the difficult growth of LuI3:Ce3+ crystals are also discussed.Radiation, Radionuclides and ReactorsApplied Science
