Perovskite (structure): Difference between revisions

Cerium-doped lutetium aluminum perovskite (LuAP:Ce) single crystals were reported.<ref name="Moszynski1997">{{cite journal|last1=Moszynski|first1=M|title=Properties of the new LuAP:Ce scintillator|journal=Nuclear Instruments and Methods in Physics Research A|date=11 January 1997|volume=385|issue=1|pages=123–131|doi=10.1016/S0168-9002(96)00875-3|bibcode=1997NIMPA.385..123M|doi-access=}}</ref> The main property of those crystals is a large mass density of 8.4 g/cm³, which gives short X- and gamma-ray absorption length. The scintillation light yield and the decay time with Cs¹³⁷ radiation source are 11,400 photons/MeV and 17 ns, respectively.<ref>{{Cite journal|last1=Maddalena|first1=Francesco|last2=Tjahjana|first2=Liliana|last3=Xie|first3=Aozhen|last4=Arramel|last5=Zeng|first5=Shuwen|last6=Wang|first6=Hong|last7=Coquet|first7=Philippe|last8=Drozdowski|first8=Winicjusz|last9=Dujardin|first9=Christophe|last10=Dang|first10=Cuong|last11=Birowosuto|first11=Muhammad Danang|date=February 2019|title=Inorganic, Organic, and Perovskite Halides with Nanotechnology for High–Light Yield X- and γ-ray Scintillators|journal=Crystals|language=en|volume=9|issue=2|pages=88|doi=10.3390/cryst9020088|doi-access=free|hdl=10356/107027|hdl-access=free}}</ref> Those properties made LUAP:Ce scintillators attractive for commercials and they were used quite often in high energy physics experiments. Until eleven years later, one group in Japan proposed Ruddlesden-Popper solution-based hybrid organic-inorganic perovskite crystals as low-cost scintillators.<ref name="Kishimoto2008">{{cite journal|last1=Kishimoto|first1=S|title=Subnanosecond time-resolved x-ray measurements using an organic-inorganic perovskite scintillator|journal=Appl. Phys. Lett.|date=29 December 2008|volume=93|issue=26|page=261901|doi=10.1063/1.3059562|bibcode=2008ApPhL..93z1901K}}</ref> However, the properties were not so impressive in comparison with LuAP:Ce. Until the next nine years, the solution-based hybrid organic-inorganic perovskite crystals became popular again through a report about their high light yields of more than 100,000 photons/MeV at cryogenic temperatures.<ref name="Birowosuto2016">{{cite journal|last1=Birowosuto|first1=Muhammad Danang|title=X-ray Scintillation in Lead Halide Perovskite Crystals|journal=Sci. Rep.|date=16 November 2016|volume=6|page=37254|doi=10.1038/srep37254|pmid=27849019|pmc=5111063|arxiv=1611.05862|bibcode=2016NatSR...637254B}}</ref> Recent demonstration of perovskite nanocrystal scintillators for X-ray imaging screen was reported and it is triggering more research efforts for perovskite scintillators.<ref name="QChen2018">{{cite journal|last1=Chen|first1=Quishui|title=All-inorganic perovskite nanocrystal scintillators|journal=Nature|date=27 August 2018|volume=561|issue=7721|pages=88–93|doi=10.1038/s41586-018-0451-1|pmid=30150772|bibcode=2018Natur.561...88C|s2cid=52096794}}</ref> Layered Ruddlesden-Popper perovskites have shown potential as fast novel scintillators with room temperature light yields up to 40,000 photons/MeV, fast decay times below 5 ns and negligible afterglow.<ref name=":0" /><ref name=":1" /> In addition this class of materials have shown capability for wide-range particle detection, including [[alpha particle]]s and thermal [[neutron]]s.<ref>{{Cite journal|last1=Xie|first1=Aozhen|last2=Hettiarachchi|first2=Chathuranga|last3=Maddalena|first3=Francesco|last4=Witkowski|first4=Marcin E.|last5=Makowski|first5=Michał|last6=Drozdowski|first6=Winicjusz|last7=Arramel|first7=Arramel|last8=Wee|first8=Andrew T. S.|last9=Springham|first9=Stuart Victor|last10=Vuong|first10=Phan Quoc|last11=Kim|first11=Hong Joo|date=2020-06-24|title=Lithium-doped two-dimensional perovskite scintillator for wide-range radiation detection|journal=Communications Materials|language=en|volume=1|issue=1|page=37|doi=10.1038/s43246-020-0038-x|bibcode=2020CoMat...1...37X|issn=2662-4443|doi-access=free|hdl=10356/164062|hdl-access=free}}</ref>