کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5461211 | 1516188 | 2017 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of CH3NH3I concentration on the physical properties of solution-processed organometal halide perovskite CH3NH3PbI3
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Organic-inorganic halide perovskite CH3NH3PbI3 films were synthesized by low-temperature solution method by using a two-step spin-coating technique. We detailedly investigated the effect of the concentration of CH3NH3I solution on the morphology and optical properties of CH3NH3PbI3 films, and a regular morphology evolution was observed. Further, temperature-dependent photoluminescence measurement was performed, and a structural phase transition of the CH3NH3PbI3 films at 150Â K was revealed by examining the temperature dependence of the peak positions and widths. In addition, the corresponding exciton binding energy and optical phonon energy of the CH3NH3PbI3 films were extracted in the high-temperature tetragonal phase based on the experimental data. It can be anticipated that our results obtained provide valuable information for the understanding on the optical properties of perovskite CH3NH3PbI3, and also their future applications in optoelectronic devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 706, 5 June 2017, Pages 274-279
Journal: Journal of Alloys and Compounds - Volume 706, 5 June 2017, Pages 274-279
نویسندگان
Xu-Guang Sun, Zhi-Feng Shi, Ying Li, Ling-Zhi Lei, Sen Li, Di Wu, Ting-Ting Xu, Yong-Tao Tian, Xin-Jian Li,