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SUMMARY:Exploring Perovskite Scintillators: Potential and Properties for R
 adiation Detection
DTSTART;VALUE=DATE-TIME:20250325T165000Z
DTEND;VALUE=DATE-TIME:20250325T171000Z
DTSTAMP;VALUE=DATE-TIME:20260716T011417Z
UID:indico-contribution-26349@indico.ific.uv.es
DESCRIPTION:Speakers: Daniele Gonçalves Mesquita (CSIC & UFPel)\nPerovski
 te materials possess a unique crystal structure and show great promise in 
 applications such as solar cells\, LEDs\, lasers\, and photodetectors. Rec
 ently\, they have gained attention as efficient X-ray detectors\, particul
 arly lead halide perovskites (HPs)\, which are known for their excellent l
 uminescence\, high mobility-lifetime product (μτ)\, and sensitivity to X
 -rays [1]. Their adjustable band gap and low cost enable the production of
  thick films over large areas\, making them attractive alternatives to com
 mercial products such as thallium-doped cesium iodide (CsI:Tl) and amorpho
 us silicon (Si) [2].\nAdditionally\, studies on the scintillation properti
 es of CsCu₂X₃ and Cs₃Cu₂X₅ (where X: Cl⁻\, Br⁻\, I⁻)\, whi
 ch are based on halide perovskite structures\, have revealed their lumines
 cence induced by charged particles and a simple\, cost-effective depositio
 n method that does not require external dopants. These materials have also
  been investigated as hybrid detectors to enhance their efficiency [3].\nT
 he search for new materials in this area has led to the identification of 
 the radioluminescent properties of barium zirconate perovskite (BaZrO₃)\
 , discovered by Moreira and collaborators through crystal growth via the m
 icrowave-assisted hydrothermal method [4]. BaZrO₃\, a material with a wi
 de band gap\, offers unique advantages\, demonstrating increased luminesce
 nt emission proportional to the growth time. Additionally\, it exhibits st
 ructural stability under high doses of irradiation and has been investigat
 ed as a UV detector [5\,6].\nBuilding on these advances\, this work aims t
 o explore BaZrO₃ as an innovative material for ionizing radiation detect
 ion that is free of lead. Pure BaZrO₃ and rare-earth-doped BaZrO₃ mate
 rials were grown using the microwave-assisted hydrothermal method and char
 acterized through diffuse reflectance and radioluminescence spectroscopic 
 analyses. These characterizations identified an experimental band gap of a
 pproximately 5 eV and a radioluminescent emission peak in the 450 nm range
 \, allowing for variations in emission with modifications in growth and do
 ping parameters.\nThrough the deposition of thin films on polystyrene subs
 trates via the doctor blade method\, their timing capabilities are being i
 nvestigated in comparison to standard detectors\, such as commercial LYSO 
 and CsI scintillators coupled with photodetectors (SiPMs). By combining ad
 justable properties\, a wide band gap\, and enhanced performance\, the inv
 estigation of new perovskites presents a strong candidate for redefining r
 adiation detection paradigms\, contributing to the development of more eff
 ective and accessible systems.\n\n[1] Materials Today\, 2022\, 55\, 110–
 136.\n[2] RSC Adv.\, 2024\, 14\, 6656.\n[3] Adv. Funct. Mater.\, 2022\, 22
 06645.\n[4] Scripta Mater.\, 2011\, 64\, 118–121.\n[5] Radiat. Phys. Che
 m.\, 2017\, 139\, 152–155.\n[6] Inorg. Chem.\, 2024\, 63\, 5865−5871.\
 n\nhttps://indico.ific.uv.es/event/7777/contributions/26349/
LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed
 ificio de Cabecera Parque Científico
URL:https://indico.ific.uv.es/event/7777/contributions/26349/
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