Youn, Sarah Su-O Kim, Gee Yeong Jo, William 2024-10-26T16:00:05Z 2024-10-26T16:00:05Z 2024-10-25 2024-12 1613-6810 https://pubs.kist.re.kr/handle/201004/150892 Doping strategy in lead halide perovskites is essential to enhance its optoelectrical properties and expand the potential applications. In this work, the mechanisms, for how dopants affect the overall structural, optical, electrical, and chemical properties and stability of lead halide perovskite materials, are investigated. This is done by specifically considering various bismuth (Bi) doping concentrations in MAPbBr(3) single crystals grown using the inverse temperature crystallization method. The resultant doped single crystals exhibit a saturation point when Bi concentration exceeds 0.063% which is considered an optimum doping point. The highest thermal stability is also achieved at this doping concentration among the doped single crystals. This study clearly identifies how Bi doping affects the properties of MAPbBr(3) and extends to consider stability, which has not been fully considered for MA-based perovskites previously. This will provide a clear understanding of evaluating doped perovskite materials for enhanced material properties, device performance, and stability. English Wiley - V C H Verlag GmbbH & Co. Structural Modifications due to Bi-Doping in MAPbBr3 Single Crystals and Their Impact on Electronic Transport and Stability Article 10.1002/smll.202407141 1 Small, v.20, no.51 Small 20 51 Y scie scopus 001331235800001 2-s2.0-85205901990 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article PEROVSKITE LEAD CH3NH3PBBR3 BISMUTH RAMAN BEHAVIOR bismuth doping lead halide perovskite single crystal stability