Temperature-dependent photoluminescence of CH3NH3PbBr3 crystal powder
-
摘要: 采用稳态光致发光(PL)光谱技术，结合光谱学分析方法，对CH3NH3PbBr3(MAPbBr3)晶体粉末的功率密度和温度相关的光物理特性进行了研究。在405 nm连续激光激发下，PL发射峰位在560 nm，半高全宽为123 meV。光谱实验结果表明，通过对功率密度与PL强度进行拟合，其斜率为1.10，这很好地证明了单光子吸收的存在。在80～310 K温度范围内，MAPbBr3晶体粉末的荧光峰位表现出不同的温度依赖行为。随着温度的升高，激子-声子相互作用的增强，峰宽均匀展宽，积分强度逐渐减小。PL发射峰位在80～145 K出现蓝移。在150 K附近PL发射峰出现跳跃，而当温度超过150 K时，光谱的峰位几乎保持不变。这些温度相关的PL行为主要是由于在150 K左右发生了从正交相到四方相的结构相变。此外，从温度相关的PL实验数据拟合得到激子结合能约为49.8 meV和纵向光学声子能量约为60.4 meV。Abstract: In this work, the temperature-dependent behavior of CH3NH3PbBr3 (MAPbBr3) crystal powder is experimentally investigated using steady-state photoluminescence (PL) spectroscopy. Under 405 nm continuous-wave laser excitation, the fluorescence peak is at 560 nm with a full width at half maximum of 123 meV. There is a good linear increase in the luminescence intensity with increasing pump laser fluence, which indicates induced single-photon absorption. The MAPbBr3 crystal powder-induced PL exhibits different temperature-dependent behaviors at temperatures ranging from 80−310 K. As the temperature increases, the photon energy of the line width gets greater and the PL integral intensity gradually decreases because of the enhanced exciton phonon interaction. The peak of the PL spectrum shows a linear blue shift at 80−145 K. There is a very shallow slot around 150 K, while the peak position of the spectrum remains almost constant when the temperature exceeds 150 K. These temperature-dependent induced PL behaviors are mainly due to the contribution of phase transition and thermal expansion from orthogonal to tetragonal phases occurring at around 150 K. In addition, exciton binding energies of about 49.8 meV and longitudinal optical phonon energies of about 60.4 meV are derived from the temperature dependent PL experimental dataset.
-
Key words:
- perovskite /
- MAPbBr3 /
- crystalline powder /
- temperature-dependence /
- photoluminescence
-
[1] Tan Zhikuang, Moghaddam R S, Lai M L, et al. Bright light-emitting diodes based on organometal halide perovskite[J]. Nature Nanotechnology, 2014, 9(9): 687-692. doi: 10.1038/nnano.2014.149 [2] Liu Yucheng, Zhang Yunxia, Zhao Kui, et al. A 1300 mm2 ultrahigh-performance digital imaging assembly using high-quality perovskite single crystals[J]. Advanced Materials, 2018, 30: 1707314. doi: 10.1002/adma.201707314 [3] Xing Guichuan, Mathews N, Sun Shuangyong, et al. Long-range balanced electron- and hole-transport lengths in organic-inorganic CH3NH3PbI3[J]. Science, 2013, 342(6156): 344-347. doi: 10.1126/science.1243167 [4] Gao Ge, Xi Qiaoyue, Zhou Hua, et al. Novel inorganic perovskite quantum dots for photocatalysis[J]. Nanoscale, 2017, 9(33): 12032-12038. doi: 10.1039/C7NR04421F [5] Li Ying, Shi Zhifeng, Lei Lingzhi, et al. Controllable vapor-phase growth of inorganic perovskite microwire networks for high-efficiency and temperature-stable photodetectors[J]. ACS Photonics, 2018, 5(6): 2524-2532. doi: 10.1021/acsphotonics.8b00348 [6] Yakunin S, Protesescu L, Krieg F, et al. Low-threshold amplified spontaneous emission and lasing from colloidal nanocrystals of caesium lead halide perovskites[J]. Nature Communications, 2015, 6: 8056. doi: 10.1038/ncomms9056 [7] Jang D M, Park K, Kim D H, et al. Reversible halide exchange reaction of organometal trihalide perovskite colloidal nanocrystals for full-range band gap tuning[J]. Nano Letters, 2015, 15(8): 5191-5199. doi: 10.1021/acs.nanolett.5b01430 [8] Mojiri A, Taylor R, Thomsen E, et al. Spectral beam splitting for efficient conversion of solar energy—A review[J]. Renewable and Sustainable Energy Reviews, 2013, 28: 654-663. doi: 10.1016/j.rser.2013.08.026 [9] Kedem N, Brenner T M, Kulbak M, et al. Light-induced increase of electron diffusion length in a p-n junction type CH3NH3PbBr3 perovskite solar cell[J]. The Journal of Physical Chemistry Letters, 2015, 6(13): 2469-2476. doi: 10.1021/acs.jpclett.5b00889 [10] Kinoshita T, Nonomura K, Jeon N J, et al. Spectral splitting photovoltaics using perovskite and wideband dye-sensitized solar cells[J]. Nature Communications, 2015, 6: 8834. doi: 10.1038/ncomms9834 [11] Zohar A, Kulbak M, Levine I, et al. What limits the open-circuit voltage of bromide perovskite-based solar cells?[J]. ACS Energy Letters, 2019, 4(1): 1-7. doi: 10.1021/acsenergylett.8b01920 [12] Wang Qi, Wu Wenzhi. Temperature and excitation wavelength-dependent photoluminescence of CH3NH3PbBr3 crystal[J]. Optics Letters, 2018, 43(20): 4923-4926. doi: 10.1364/OL.43.004923 [13] Yu Hailong, Wu Wenzhi, Wang Qi, et al. Unusual luminescence and its decay behavior of CH3NH3PbBr3 single crystals at orthorhombic phase[J]. Materials Today Physics, 2022, 22: 100621. doi: 10.1016/j.mtphys.2022.100621 [14] Zhang Feng, Zhong Haizheng, Chen Cheng, et al. Brightly luminescent and color-tunable colloidal CH3NH3Pb X3 ( X=Br, I, Cl) quantum dots: potential alternatives for display technology[J]. ACS Nano, 2015, 9(4): 4533-4542. doi: 10.1021/acsnano.5b01154 [15] Siddique Z, Payne J L, Irvine J T S, et al. Effect of halide-mixing on tolerance factor and charge-carrier dynamics in (CH3NH3PbBr3- x Cl x ) perovskites powders[J]. Journal of Materials Science:Materials in Electronics, 2020, 31(21): 19415-19428. doi: 10.1007/s10854-020-04475-4 [16] Liu Shuo, Jiao Shujie, Lu Hongliang, et al. Cryogenic photoluminescence study on perovskite MAPbBr3 single crystals[J]. ECS Journal of Solid State Science and Technology, 2021, 10: 046003. doi: 10.1149/2162-8777/abf8fd [17] Ding Jianxu, Zhao Ying, Du Songjie, et al. Controlled growth of MAPbBr3 single crystal: understanding the growth morphologies of vicinal hillocks on (100) facet to form perfect cubes[J]. Journal of Materials Science, 2017, 52(13): 7907-7916. doi: 10.1007/s10853-017-0995-8 [18] Rong Shanshan, Xiao Yequan, Jiang Jiexuan, et al. Strongly enhanced photoluminescence and photoconductivity in erbium-doped MAPbBr3 single crystals[J]. The Journal of Physical Chemistry C, 2020, 124(16): 8992-8998. doi: 10.1021/acs.jpcc.0c01959 [19] Zuo Zhiyuan, Ding Jianxu, Zhao Ying, et al. Enhanced optoelectronic performance on the (110) lattice plane of an MAPbBr3 single crystal[J]. The Journal of Physical Chemistry Letters, 2017, 8(3): 684-689. doi: 10.1021/acs.jpclett.6b02812 [20] Xie Aozhen, Nguyen T H, Hettiarachchi C, et al. Thermal quenching and dose studies of X-ray luminescence in single crystals of halide perovskites[J]. The Journal of Physical Chemistry C, 2018, 122(28): 16265-16273. doi: 10.1021/acs.jpcc.8b03622 [21] Savenije T J, Ponseca C S Jr, Kunneman L, et al. Thermally activated exciton dissociation and recombination control the carrier dynamics in organometal halide perovskite[J]. The Journal of Physical Chemistry Letters, 2014, 5(13): 2189-2194. doi: 10.1021/jz500858a [22] Wu Ruirui, Wang Qi, Yang Sen, et al. Enhanced thermal stability of exciton recombination in CsPbI3 perovskite nanocrystals via zinc alloying[J]. Journal of Alloys and Compounds, 2021, 857: 157574. doi: 10.1016/j.jallcom.2020.157574 [23] Hu Qichuan, Yu Hailong, Gong Shunfa, et al. One-dimensional luminescent tetrabutylammonium lead halide perovskite synthesized with deep eutectic solvents[J]. Journal of Materials Chemistry C, 2022, 10(15): 6002-6008. doi: 10.1039/D2TC00382A [24] Al Salman A, Tortschanoff A, Mohamed M B, et al. Temperature effects on the spectral properties of colloidal CdSe nanodots, nanorods, and tetrapods[J]. Applied Physics Letters, 2007, 90: 093104. doi: 10.1063/1.2696687 [25] Wu Lifang, Zhang Minmin, Yang Sen, et al. Spectral and dynamic analysis of CsPbBr3 perovskite nanocrystals with enhanced water stability using sodium passivation[J]. Journal of Alloys and Compounds, 2021, 889: 161721. doi: 10.1016/j.jallcom.2021.161721 -
下载:
点击查看大图
图(3)
计量
- 文章访问数: 212
- HTML全文浏览量: 112
- PDF下载量: 35
- 被引次数: 0
