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Surface Engineering of Methylammonium Lead Bromide Perovskite Crystals for Enhanced X-ray Detection.
Gidey, Abraha Tadese; Haruta, Yuki; Herman, Artur P; Grodzicki, Milosz; Melnychenko, Anna M; Majchrzak, Dominika; Mahato, Somnath; Rogowicz, Ernest; Syperek, Marcin; Kudrawiec, Robert; Saidaminov, Makhsud I; Abdelhady, Ahmed L.
Afiliación
  • Gidey AT; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
  • Haruta Y; Department of Chemistry, University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada.
  • Herman AP; Department of Semiconductor Materials Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
  • Grodzicki M; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
  • Melnychenko AM; Department of Semiconductor Materials Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
  • Majchrzak D; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
  • Mahato S; Department of Semiconductor Materials Engineering, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
  • Rogowicz E; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
  • Syperek M; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
  • Kudrawiec R; Department of Experimental Physics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
  • Saidaminov MI; Department of Experimental Physics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
  • Abdelhady AL; LUKASIEWICZ Research Network PORT-Polish Center for Technology Development, 54-066 Wroclaw, Poland.
J Phys Chem Lett ; 14(40): 9136-9144, 2023 Oct 12.
Article en En | MEDLINE | ID: mdl-37795957
ABSTRACT
The surface quality of lead halide perovskite crystals can extremely influence their optoelectronic properties and device performance. Here, we report a surface engineering crystallization technique in which we in situ grow a polycrystalline methylammonium lead tribromide (MAPbBr3) film on top of bulk mm-sized single crystals. Such MAPbBr3 crystals with a MAPbBr3 passivating film display intense green emission under UV light. X-ray photoelectron spectroscopy demonstrates that these crystals with emissive surfaces are compositionally different from typical MAPbBr3 crystals that show no emission under UV light. Time-resolved photoluminescence and electrical measurements indicate that the MAPbBr3 film/MAPbBr3 crystals possess less surface defects compared to the bare MAPbBr3 crystals. Therefore, X-ray detectors fabricated using the surface-engineered MAPbBr3 crystals provide an almost 5 times improved sensitivity to X-rays and a more stable baseline drift with respect to the typical MAPbBr3 crystals.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: J Phys Chem Lett Año: 2023 Tipo del documento: Article País de afiliación: Polonia
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: J Phys Chem Lett Año: 2023 Tipo del documento: Article País de afiliación: Polonia