How Lead Halide Complex Chemistry Dictates the Composition of Mixed Halide Perovskites

被引：172
|
作者：
Yoon, Seog Joon [1 ,2 ]
Stamplecoskie, Kevin G. [1 ,4 ]
Kamat, Prashant V. [1 ,2 ,3 ]
机构：
[1] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46556 USA
[2] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[3] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
[4] Queens Univ, Kingston, ON K7L 3N6, Canada
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2016年 / 7卷 / 07期
关键词：
SOLAR-CELLS; PHOTOVOLTAIC EFFICIENCY; HYBRID PEROVSKITES; EXCITED-STATE; EVOLUTION; RECOMBINATION; PERFORMANCE; CHLORIDE; FILMS; CH(3)NH(3)PBL(3);
D O I：
10.1021/acs.jpclett.6b00433
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Varying the halide ratio (e.g., Br-:I-) is a convenient approach to tune the bandgap of organic lead halide perovskites. The complexation between Pb2+ and halide ions is the primary step in dictating the overall composition, and optical properties of the annealed perovskite structure. The complexation between Pb2+ and Br- is nearly 7 times greater than the complexation between Pb2+ and I-, thus making Br- a dominant binding species in mixed halide systems. Emission and transient absorption measurements show a strong dependence of excited state behavior on the composition of halide ions employed in the precursor solution. When excess halide (X = Br- and I-) are present in the precursor solution (0.3 M PbX2 and 0.9 M CH3NH3X), the exclusive binding of Pb2+ with Br- results in the formation of CH3NH3PbBr3 perovskites as opposed to mixed halide perovskite.
引用
收藏
页码：1368 / 1373
页数：6
相关论文
共 50 条
  • [41] Structural chemistry of layered lead halide perovskites containing single octahedral layers
    McNulty, Jason A.
    Lightfoot, Philip
    [J]. IUCRJ, 2021, 8 : 485 - 513
  • [42] Effect of Light Illumination on Mixed Halide Lead Perovskites: Reversible or Irreversible Transformation
    Huang, Weixin
    Yoon, Seog Joon
    Sapkota, Pitambar
    [J]. ACS APPLIED ENERGY MATERIALS, 2018, 1 (06): : 2859 - 2865
  • [43] Atomistic Mechanism of Passivation of Halide Vacancies in Lead Halide Perovskites by Alkali Ions
    Li, Wei
    Zhan, Juan
    Liu, Xiaorui
    Tang, Jianfeng
    Yin, Wan-Jian
    Prezhdo, Oleg, V
    [J]. CHEMISTRY OF MATERIALS, 2021, 33 (04) : 1285 - 1292
  • [44] Stabilization of mixed-halide lead perovskites under light by photothermal effects
    Vicente, Juvinch R.
    Kordesch, Martin E.
    Chen, Jixin
    [J]. JOURNAL OF ENERGY CHEMISTRY, 2021, 63 : 8 - 11
  • [45] Tracking the transformation of lead halide complex into organic lead halide perovskite
    Kamat, Prashant
    Manser, Joseph
    Yoon, Seogjoon
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2016, 251
  • [46] A study on the effects of mixed organic cations on the structure and properties in lead halide perovskites
    Wu, Chao
    Guo, Daoyou
    Li, Peigang
    Wang, Shunli
    Liu, Aiping
    Wu, Fengmin
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2020, 22 (05) : 3105 - 3111
  • [47] Suppressed Halide Ion Migration in 2D Lead Halide Perovskites
    Cho, Junsang
    DuBose, Jeffrey T.
    An Ngoc Thien Le
    Kamat, Prashant, V
    [J]. ACS MATERIALS LETTERS, 2020, 2 (06): : 565 - 570
  • [48] Photoluminescence in lead halide perovskites and the role of defects
    Kandada, Ajay Ram Srimath
    Petrozza, Annamaria
    [J]. ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2017, 73 : C1115 - C1115
  • [49] Halide lead perovskites for ionizing radiation detection
    Wei, Haotong
    Huang, Jinsong
    [J]. NATURE COMMUNICATIONS, 2019, 10 (1)
  • [50] Stabilization of mixed-halide lead perovskites under light by photothermal effects
    Juvinch R.Vicente
    Martin E.Kordesch
    Jixin Chen
    [J]. Journal of Energy Chemistry, 2021, 63 (12) : 8 - 11
12345