Bi3+掺杂无铅双钙钛矿Cs2Ag0.6Na0.4InCl6的发光性质

王佳旭; 李忠辉; 赵炎; 蒋小康; 周恒为

doi:10.7498/aps.73.20240901

摘要

现需开发一种低耗能、绿色环保制备双钙钛矿荧光粉的工艺, 并将其他金属离子掺入该基质, 获得一种高量子效率的新型发光材料. 本文采用微波固相法制备了Bi³⁺掺杂无铅双钙钛矿Cs₂Ag_0.6Na_0.4InCl₆荧光粉, 该方法无需配体辅助, 绿色环保. 通过X射线衍射仪和扫描电子显微镜对晶体结构和形貌进行表征, 并通过激发光谱、发射光谱和时间分辨光谱以及量子效率对其发光性能进行研究. 结果表明: 1) Cs₂Ag_0.6Na_0.4InCl₆为立方晶体, 属于$ Fm\bar 3m $空间群, 晶粒形貌为不规则颗粒; 2)当Bi³⁺的最佳掺杂浓度为0.0013 mmol时, Cs₂Ag_0.6Na_0.4InCl₆材料发射中心波长为562 nm, 平均荧光寿命达到2.60 μs, 量子效率达到45.28% ; 3)当Bi³⁺离子浓度超过0.0013 mmol时, 会产生明显的浓度猝灭效应, 主要是因为Bi³⁺离子之间电四极-电四极(q-q)相互作用; 4) Cs₂Ag_0.6Na_0.4InCl₆掺杂Bi³⁺荧光粉的色度坐标(CIE)位于黄光区域, 是一种具有潜在应用价值的暖白光LED用黄色荧光粉.

关键词:

Abstract

We need to develop a low energy consumption, green and environmentally friendly process for preparing double perovskite fluorescent powders, and incorporate other metal ions into the matrix to obtain a new type of luminescent material with high quantum efficiency. In this study a microwave solid-state method is used to prepare Bi³⁺ doped lead-free double perovskite Cs₂Ag_0.6Na_0.4InCl₆ fluorescent powders. This method does not require ligand assistance and is environmentally friendly. The crystal structure and morphology are characterized by X-ray diffraction and scanning electron microscopy, and the luminescence performance is studied by excitation spectroscopy, emission spectroscopy, time-resolved spectroscopy, and quantum efficiency. The results are shown below 1) The Cs₂Ag_0.6Na_0.4InCl₆ is a cubic crystal belonging to the $ Fm\bar 3 m $ space group, and its grain morphology is irregular. 2) When the optimal doping concentration of Bi³⁺ is 0.0013 mmol, the emission center wavelength of Cs₂Ag_0.6Na_0.4InCl₆ material is 562 nm, the average fluorescence lifetime reaches 2.60 μs, and the quantum efficiency attains 45.28%. 3) When the concentration of Bi³⁺ ions exceeds 0.0013 mmol, a significant concentration quenching effect occurs, which is mainly due to the electric quadrupole electric quadrupole (q-q) interaction between Bi³⁺ ions. 4) The chromaticity coordinates of the Cs₂Ag_0.6Na_0.4InCl₆ doped Bi³⁺phosphor are located in the yellow-light region, making it a potential yellow phosphor for warm white light emitting diode (LED) applications.

Keywords:

作者及机构信息

伊犁师范大学物理科学与技术学院, 新疆凝聚态相变与微结构实验室, 伊宁　835000

通信作者: 蒋小康, jiangxiaokang@163.com ; 周恒为, zhw33221@163.com

基金项目: 新疆凝聚态相变与微结构实验室开放课题重点项目(批准号: XJDX0912Z2401 )资助的课题.

Authors and contacts

Xinjiang Condensed Phase Transition and Microstructure Laboratory, School of Physical Science and Technology, Yili Normal University, Yining 835000, China

Corresponding author: Jiang Xiao-Kang, jiangxiaokang@163.com ; Zhou Heng-Wei, zhw33221@163.com

Funds: Project supported by the Key Program of Open Project of the Xinjiang Condensed Phase Transition and Microstructure Laboratory, China (Grant No. XJDX0912Z2401).

文章全文 : translate this paragraph

参考文献

[1]	Yu Y X, Zhou Y F, Ang Y J, Zhang Y Q, Liu X D, Liang X J, Liu J P, Chen S Q, Xiang W D 2021 J. Lumin. 236 118129 Google Scholar
[2]	Xu Q L, Yang D W, Lü J, Sun Y Y, Zhang L J 2018 Small Methods 2 1700316 Google Scholar
[3]	Zhao X G, Yang D W, Ren J C, Sun Y H, Xiao Z W, Zhang L J 2018 Joule 2 1662 Google Scholar
[4]	Filip M R, Hillman S, Haghighirad A A, Snaith H J, Giustino F 2016 J. Phys. Chem. Lett. 7 2579 Google Scholar
[5]	Wei F X, Deng Z Y, Sun S J, Xie F, Kieslich G, Evans, Donald M 2016 Mater. Horiz. 3 328 Google Scholar
[6]	Wei F X, Deng Z Y, Sun S J, Zhang F H, Evans-Donald M, Kieslich G, Tominaka S, Carpenter-Michael A, Zhang J, Bristowe-Paul D, Cheetham-Anthony K 2017 Chem. Mater. 29 1089 Google Scholar
[7]	Tran T, Thao, Panella J R, Chamorro J R, Morey J R, McQueen T M 2017 Mater. Horiz. 4 688 Google Scholar
[8]	Bekenstein Y, Dahl J C, Huang J M, Osowiecki W T, Swabeck J K, Chan E M, Yang P D, Alivisatos A P 2018 Nano Lett. 18 3502 Google Scholar
[9]	Hao X G, Yang D G, Sun Y H, Li T S, Zhang L J, Yu L P, Zunger A 2017 J. Am. Chem. Soc. 139 6718 Google Scholar
[10]	Jain A, Voznyy O, Sargent E H 2017 J. Phys. Chem. 121 7183 Google Scholar
[11]	皮慧慧, 李国辉, 周博林, 崔艳霞 2021 发光学报 42 650 Google Scholar Pi H H, Li G H, Zhou B L, Cui Y X 2021 J. Lumin. 42 650 Google Scholar
[12]	Li X, Gao X P, Zhang X T, Shen X Y, Lu M, Wu J L, Shi Z F, Colvin Vicki L, Hu J H, Bai X, Yu W W, Zhang Y 2021 Adv. Sci. Lett. 8 2003334 Google Scholar
[13]	李鑫 2023 博士学位论文 (吉林: 吉林大学) Li X 2023 Ph. D. Dissertation (Jilin: Jilin University
[14]	Akihiro K, Kenjiro T, Yasuo S, Tsutomu M 2009 J. Am. Chem. Soc. 131 6050 Google Scholar
[15]	Aron W 2015 J. Phys. Chem. 119 5755 Google Scholar
[16]	Hoefler S F, Trimmel G, Rath T 2017 Monatsh. Chem. 148 795 Google Scholar
[17]	Hu H, Dong B H, Zhang W 2017 J. Mater. Chem. 5 11436 Google Scholar
[18]	Cho H, Kim Y H, Wolf C, Lee H D, Lee T W 2018 Adv. Mater. 30 1704587 Google Scholar
[19]	Quan L N, Rand B P, Friend R H, Mhaisalkar S G, Lee T W, Sargent E H 2019 Chem. Rev. 119 7444 Google Scholar
[20]	Majher J D, Gray M B, Strom T A, Patrick M 2019 Chem. Mater. 31 1738 Google Scholar
[21]	Zhang H N, Dun G H, Feng Q X, Zhao R, Liang R Q, Gao X Y, Thomas H, Chen M, Geng X S, Liu M Y, Huang Y, Zheng X R, Qin K, Tan X C, Wang X F, Xie D, Yang Y, Tian H, Zhou Y Y, Nitin P P, Wang X Y, Hong J W, Ren T L 2020 IEEE Trans. Electron Devices 67 3191 Google Scholar
[22]	Bartel C J, Sutton C, Goldsmith B R, Ouyang R H, Charles B M, Luca M G, Matthias S 2019 Sci. Adv. 5 eaav0693 Google Scholar
[23]	Blasse G 1968 Phys. Lett. A. 6 444 Google Scholar
[24]	Xiao F, Yi R X, Yuan H L, Zang G J, Xie C N 2018 Spectrochim. Acta A 202 352 Google Scholar
[25]	Luo J J, Wang X M, Li S R, Liu J, Guo Y M, Niu G D, Yao L, Fu Y H, Gao L, Dong Q S, Zhao C Y, Leng M Y, Ma F S, Liang W X, Wang L D, Jin S Y, Han J B, Zhang L J, Etheridge J, Wang J B, Yan Y F, Sargent E H, Tang J 2018 Nature 563 541 Google Scholar
[26]	Tan Z F, Li J H, Zhang C, Li Z, Hu Q S, Xiao Z W, Toshio K, Hideo H, Guangda N, Efrat L, Cheng Y B, Tang J 2018 Adv. Funct. Mater. 28 1801131 Google Scholar
[27]	Han P G, Mao X, Yang S Q, Zhang F, Yang B, Wei D H, Deng W Q, Han K L 2019 Angew. Chem. Int. Ed. 58 17231 Google Scholar
[28]	Li J H, Tan Z F, Hu M C, Chen C, Luo J J, Li S R, Gao L, Xiao Z W, Niu G D, Tang J 2019 Front. Optoelectron. 12 352 Google Scholar
[29]	Rainer W N 2013 J. Phys. Conf. Ser. 443 012080 Google Scholar
[30]	Gong X K, Zhang X S, Li Q, Liu L, Zhang Y M, Li C, Kong L N, Xu J P, Li L 2023 J. Colloid Interface Sci. 648 865 Google Scholar

施引文献

图 1 Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺系列样品XRD图谱

Fig. 1. XRD patterns of Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺ phosphors.

下载: 全尺寸图片幻灯片

图 2 Cs₂Ag_0.6Na_0.4InCl₆, Cs₂Ag_0.6Na_0.4In_0.98Cl₆:0.02 Bi³⁺荧光粉的X射线光电子能谱

Fig. 2. X-ray photoelectron spectroscopy of Cs₂Ag_0.6Na_0.4InCl₆, Cs₂Ag_0.6Na_0.4In_0.98Cl₆:0.02 Bi³⁺ phosphor powder.

下载: 全尺寸图片幻灯片

图 3 Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺的XRD结构精修图谱

Fig. 3. Rietveld refinement of XRD pattern of Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺.

下载: 全尺寸图片幻灯片

图 4 Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺荧光粉的SEM图

Fig. 4. SEM image of Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺.

下载: 全尺寸图片幻灯片

图 5 (a)室温下Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺ 荧光粉的激发和发射光谱图; (b)依赖发射波长的Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺激发光谱(250—450 nm); (c)室温下Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺荧光粉的发射光谱图; (d) Bi³⁺掺杂浓度与发射荧光强度图; (e) Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺的lg(I/x)与lg(x)关系曲线

Fig. 5. (a) Excitation and emission spectra of Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺ phosphor at room temperature; (b) emission wavelength dependent excitation spectrum of Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺, from 250 nm to 450 nm; (c) emission spectra of Cs₂Ag_0.6Na_0.4In_1–xCl⁶:xBi³⁺ phosphor at room temperature; (d) emission fluorescence intensity versus Bi³⁺ doping concentration; (e) curve of lg(I/x) versus lg(x) for Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺ .

下载: 全尺寸图片幻灯片

图 6 (a) Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺的变温光谱图; (b) 荧光光谱半峰宽与温度的函数拟合结果; (c) STE发射的位形图; (d) Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺的ln(I₀/(I–1))与1/(k_BT )关系曲线

Fig. 6. (a) Temperature dependent spectrogram of Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺; (b) the fitting results of the function between the half peak width of fluorescence spectrum and temperature; (c) stereogram of STE emission; (d) curve of ln(I₀/(I–1)) versus 1/(k_BT ) for Cs₂Ag_0.6Na_0.4In_0.987Cl₆:xBi³⁺.

下载: 全尺寸图片幻灯片

图 7 样品 Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺的(a)衰减曲线与荧光寿命以及(b)量子效率

Fig. 7. (a) Attenuation curve and fluorescence lifetime and (b) quantum efficiency for sample Cs₂Ag_0.6Na_0.4In_0.987Cl₆:0.013Bi³⁺.

下载: 全尺寸图片幻灯片

图 8 Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺的色坐标

Fig. 8. CIE of Cs₂Ag_0.6Na_0.4In_1–xCl₆:xBi³⁺ .

下载: 全尺寸图片幻灯片

下载: 全尺寸图片幻灯片

map

[1]	Yu Y X, Zhou Y F, Ang Y J, Zhang Y Q, Liu X D, Liang X J, Liu J P, Chen S Q, Xiang W D 2021 J. Lumin. 236 118129 Google Scholar
[2]	Xu Q L, Yang D W, Lü J, Sun Y Y, Zhang L J 2018 Small Methods 2 1700316 Google Scholar
[3]	Zhao X G, Yang D W, Ren J C, Sun Y H, Xiao Z W, Zhang L J 2018 Joule 2 1662 Google Scholar
[4]	Filip M R, Hillman S, Haghighirad A A, Snaith H J, Giustino F 2016 J. Phys. Chem. Lett. 7 2579 Google Scholar
[5]	Wei F X, Deng Z Y, Sun S J, Xie F, Kieslich G, Evans, Donald M 2016 Mater. Horiz. 3 328 Google Scholar
[6]	Wei F X, Deng Z Y, Sun S J, Zhang F H, Evans-Donald M, Kieslich G, Tominaka S, Carpenter-Michael A, Zhang J, Bristowe-Paul D, Cheetham-Anthony K 2017 Chem. Mater. 29 1089 Google Scholar
[7]	Tran T, Thao, Panella J R, Chamorro J R, Morey J R, McQueen T M 2017 Mater. Horiz. 4 688 Google Scholar
[8]	Bekenstein Y, Dahl J C, Huang J M, Osowiecki W T, Swabeck J K, Chan E M, Yang P D, Alivisatos A P 2018 Nano Lett. 18 3502 Google Scholar
[9]	Hao X G, Yang D G, Sun Y H, Li T S, Zhang L J, Yu L P, Zunger A 2017 J. Am. Chem. Soc. 139 6718 Google Scholar
[10]	Jain A, Voznyy O, Sargent E H 2017 J. Phys. Chem. 121 7183 Google Scholar
[11]	皮慧慧, 李国辉, 周博林, 崔艳霞 2021 发光学报 42 650 Google Scholar Pi H H, Li G H, Zhou B L, Cui Y X 2021 J. Lumin. 42 650 Google Scholar
[12]	Li X, Gao X P, Zhang X T, Shen X Y, Lu M, Wu J L, Shi Z F, Colvin Vicki L, Hu J H, Bai X, Yu W W, Zhang Y 2021 Adv. Sci. Lett. 8 2003334 Google Scholar
[13]	李鑫 2023 博士学位论文 (吉林: 吉林大学) Li X 2023 Ph. D. Dissertation (Jilin: Jilin University
[14]	Akihiro K, Kenjiro T, Yasuo S, Tsutomu M 2009 J. Am. Chem. Soc. 131 6050 Google Scholar
[15]	Aron W 2015 J. Phys. Chem. 119 5755 Google Scholar
[16]	Hoefler S F, Trimmel G, Rath T 2017 Monatsh. Chem. 148 795 Google Scholar
[17]	Hu H, Dong B H, Zhang W 2017 J. Mater. Chem. 5 11436 Google Scholar
[18]	Cho H, Kim Y H, Wolf C, Lee H D, Lee T W 2018 Adv. Mater. 30 1704587 Google Scholar
[19]	Quan L N, Rand B P, Friend R H, Mhaisalkar S G, Lee T W, Sargent E H 2019 Chem. Rev. 119 7444 Google Scholar
[20]	Majher J D, Gray M B, Strom T A, Patrick M 2019 Chem. Mater. 31 1738 Google Scholar
[21]	Zhang H N, Dun G H, Feng Q X, Zhao R, Liang R Q, Gao X Y, Thomas H, Chen M, Geng X S, Liu M Y, Huang Y, Zheng X R, Qin K, Tan X C, Wang X F, Xie D, Yang Y, Tian H, Zhou Y Y, Nitin P P, Wang X Y, Hong J W, Ren T L 2020 IEEE Trans. Electron Devices 67 3191 Google Scholar
[22]	Bartel C J, Sutton C, Goldsmith B R, Ouyang R H, Charles B M, Luca M G, Matthias S 2019 Sci. Adv. 5 eaav0693 Google Scholar
[23]	Blasse G 1968 Phys. Lett. A. 6 444 Google Scholar
[24]	Xiao F, Yi R X, Yuan H L, Zang G J, Xie C N 2018 Spectrochim. Acta A 202 352 Google Scholar
[25]	Luo J J, Wang X M, Li S R, Liu J, Guo Y M, Niu G D, Yao L, Fu Y H, Gao L, Dong Q S, Zhao C Y, Leng M Y, Ma F S, Liang W X, Wang L D, Jin S Y, Han J B, Zhang L J, Etheridge J, Wang J B, Yan Y F, Sargent E H, Tang J 2018 Nature 563 541 Google Scholar
[26]	Tan Z F, Li J H, Zhang C, Li Z, Hu Q S, Xiao Z W, Toshio K, Hideo H, Guangda N, Efrat L, Cheng Y B, Tang J 2018 Adv. Funct. Mater. 28 1801131 Google Scholar
[27]	Han P G, Mao X, Yang S Q, Zhang F, Yang B, Wei D H, Deng W Q, Han K L 2019 Angew. Chem. Int. Ed. 58 17231 Google Scholar
[28]	Li J H, Tan Z F, Hu M C, Chen C, Luo J J, Li S R, Gao L, Xiao Z W, Niu G D, Tang J 2019 Front. Optoelectron. 12 352 Google Scholar
[29]	Rainer W N 2013 J. Phys. Conf. Ser. 443 012080 Google Scholar
[30]	Gong X K, Zhang X S, Li Q, Liu L, Zhang Y M, Li C, Kong L N, Xu J P, Li L 2023 J. Colloid Interface Sci. 648 865 Google Scholar

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Bi³⁺掺杂无铅双钙钛矿Cs₂Ag_0.6Na_0.4InCl₆的发光性质