1. 东北大学 理学院, 辽宁 沈阳 110016
2. 吉林师范大学 功能材料物理与化学教育部重点实验室, 吉林 四平 136000
扫 描 看 全 文
陈肖慧, 季思航, 袁曦等. Mn掺杂CsPbCl<sub>3</sub>钙钛矿量子点的发光性质[J]. 发光学报, 2018,39(5): 609-614
CHEN Xiao-hui, JI Si-hang, YUAN Xi etc. Photoluminescence Properties of Mn Doped CsPbCl<sub>3</sub> Perovskite Quantum Dots[J]. Chinese Journal of Luminescence, 2018,39(5): 609-614
陈肖慧, 季思航, 袁曦等. Mn掺杂CsPbCl<sub>3</sub>钙钛矿量子点的发光性质[J]. 发光学报, 2018,39(5): 609-614 DOI: 10.3788/fgxb20183905.0609.
CHEN Xiao-hui, JI Si-hang, YUAN Xi etc. Photoluminescence Properties of Mn Doped CsPbCl<sub>3</sub> Perovskite Quantum Dots[J]. Chinese Journal of Luminescence, 2018,39(5): 609-614 DOI: 10.3788/fgxb20183905.0609.
研究了不同Mn/Pb量比的Mn掺杂CsPbCl,3,(Mn:CsPbCl,3,)钙钛矿量子点的发光性质。Mn/Pb的量比增加引起的Mn,2+,发光峰的红移,被认为是来源于高浓度Mn,2+,掺杂下的Mn,2+,-Mn,2+,对。进一步研究了Mn:CsPbCl,3,量子点的发光效率与Mn/Pb的量比之间的关系,发现随着量比达到5:1时,其发光效率明显下降。这种发光效率下降是由于Mn掺杂浓度引起的发光猝灭。Mn:CsPbCl,3,量子点的变温发光光谱证实,随着温度的升高,Mn离子发光峰蓝移,线宽加宽,但其发光强度明显增加。
Photoluminescence(PL) properties of Mn doped CsPbCl,3, (Mn:CsPbCl,3,) perovskite quantum dots(QDs) with various Mn/Pb molar ratios were studied. Two emission bands peaked at around 400 nm and 600 nm, respectively, were observed in Mn:CsPbCl,3, QDs at room temperature. The PL intensity of Mn ion emission in the Mn:CsPbCl,3, QDs was significantly enhanced with respect to the band edge exciton emission as Mn/Pb molar ratio increased from 0.5:1 to 5:1. Both the exciton absorption and emission bands in the doped QDs shifted to the blue, which was consistent with the reduction of the QD size. The red shift of Mn,2+, emission band with increasing the molar ratio was considered to result from the formation of Mn,2+,-Mn,2+, pairs in the doped QDs due to high concentration Mn doping. Further, the PL quantum efficiency of Mn:CsPbCl,3, QDs as a function of Mn/Pb molar ratio was studied in detail. It is found that the PL quantum yield of Mn,2+, gradually increases with the increasing of Mn/Pb molar ratio. The maximum PL quantum yield reaches 62% as Mn/Pb molar ratio is 2:1. The PL quantum yield drops continually with the increasing of Mn/Pb molar ratio to 5:1. The reduction of PL quantum yield at high concentration Mn doping is related to Mn doping concentration-induced PL quenching due to the formation of Mn,2+,-Mn,2+, pairs. The temperature-dependence of PL spectra in Mn:CsPbCl,3, QDs demonstrates that Mn,2+, emission band shifts to the blue and the emission width is broadened, while PL intensity increases, which is in contrast to Ⅱ-Ⅵ semiconductor QDs.
钙钛矿掺杂量子点发光量子产率
perovskitedoped quantum dotsphotoluminescencequantum yield
PROTESESCU L, YAKUNIN S, BODNARCHUK M, et al.. Nanocrystals of cesium lead halide perovskites (CsPbX3, X=Cl, Br, and I):novel optoelectronic materials showing bright emission with wide color gamut[J]. Nano Lett., 2015, 15(6):3692-3696.
ZHANG F, ZHONG H, CHEN C, et al.. Brightly luminescent and color-tunable colloidal CH3NH3PbX3 (X=Br, I, Cl) quantum dots:potential alternatives for display technology[J]. ACS Nano, 2015, 9(4):4533-4542.
SONG J, LI J, LI X, et al.. Quantum dot light-emitting diodes based on inorganic perovskite cesium lead halides (CsPbX3)[J]. Adv. Mater., 2015, 27(44):7162-7167.
LI X, WU Y, LI X, et al.. CsPbX3 quantum dots for lighting and displays:room-temperature synthesis, photoluminescence superiorities, underlying origins and white light-emitting diodes[J]. Adv. Funct. Mater., 2016, 26(15):2435-2445.
ZHOU Q, BAI Z, LU W G, et al.. In situ fabrication of halide perovskite nanocrystal embedded polymer composite films with enhanced photoluminescence for display backlights[J]. Adv. Mater., 2016, 28(41):9163-9168.
BHARGAVA R, GALLAGHER D, HONG X, et al.. Optical properties of manganese-doped nanocrystals of ZnS[J]. Phys. Rev. Lett., 1994, 72(3):416-419.
PRADHAN N, PENG X. Efficient and color-tunable Mn-doped ZnSe nanocrystal emitters:control of optical performance via greener synthetic chemistry[J]. J. Am. Chem. Soc., 2007, 129(11):3339-3347.
BEAULAC R, ARCHER P, MEIJERINK A, et al.. Exciton storage by Mn2+ in colloidal Mn2+-doped CdSe quantum dots[J]. Nano Lett., 2008, 8(9):2949-2953.
YUAN X, ZHENG J J, IKEZAWA M, et al.. Thermal stability of Mn2+ ion luminescence in Mn doped core-shell quantum dots[J]. Nanoscale, 2014, 6(1):300-307.
BEAULAC R, ARCHER P I, OCHSENBEIN S T, et al.. Mn2+-doped CdSe quantum dots:new inorganic materials for spin-electronics and spin-photonics[J]. Adv. Funct. Mater., 2008, 18(24):3873-3891.
CAO S, ZHENG J J, ZHAO J L, et al.. Highly efficient and well-resolved Mn2+ ion emission in MnS/ZnS/CdS quantum dots[J]. J. Mater. Chem. C, 2013, 1(14):2540-2547.
HAZARIKA A, LAYEK A, DE S, et al.. Ultranarrow and widely tunable Mn2+-induced photoluminescence from single Mn-doped nanocrystals of ZnS-CdS alloys[J]. Phys. Rev. Lett., 2013, 110(26):267401.
陈肖慧, 刘洋, 华杰, 等. Mn掺杂Zn-In-S量子点的制备及发光性质研究[J]. 发光学报, 2015, 36(10):1113-1117. CHEN X H, LIU Y, HUA J, et al.. Preparation and photoluminescence properties of Mn doped Zn-In-S quantum dots[J]. Chin. J. Lumin., 2015, 36(10):1113-1117. (in Chinese)
PAROBEK D, ROMAN B, DONG Y, et al.. Exciton-to-dopant energy transfer in Mn doped cesium lead halide perovskite nanocrystals[J]. Nano Lett., 2016, 16(12):7376-7380.
LIU W, LIN Q, LI H, et al.. Mn2+-doped lead halide perovskite nanocrystals with dual-color emission controlled by halide content[J]. J. Am. Chem. Soc., 2016, 138(45):14954-14961.
LIU H, WU Z, SHAO J, et al.. CsPbxMn1-xCl3 perovskite quantum dots with high Mn substitution ratio[J]. ACS Nano, 2017, 11(2):2239-2247.
GURIA A, DUTTA S, ADHIKARI S D, et al.. Doping Mn2+ in lead halide perovskite nanocrystals:successes and challenges[J]. ACS Energy Lett., 2017, 2(5):1014-1021.
XU K, LIN C, XIE X, et al.. Efficient and stable luminescence from Mn2+ in core and core-isocrystalline shell CsPbCl3 perovskite nanocrystals[J]. Chem. Mater., 2017, 29(10):4265-4272.
HUANG G, WANG C, XU S, et al.. Postsynthetic doping of MnCl2 molecules into preformed CsPbBr3 perovskite nanocrystals via a halide exchange-driven cation exchange[J]. Adv. Mater., 2017, 29(29):1700095.
PENG W, QU S, CONG G, et al.. Concentration effect of Mn2+ on the photoluminescence of ZnS:Mn nanocrystals[J]. J. Cryst. Growth, 2005, 279(3-4):454-460.
MAHAMUNI S, LAD A, PATOLE S, et al.. Photoluminescence properties of manganese-doped zinc selenide quantum dots[J]. J. Phys. Chem. C, 2008, 112(7):2271-2277.
CHEN H, MAITI S, SON D H, et al.. Doping location-dependent energy transfer dynamics in Mn-doped CdS/ZnS nanocrystals[J]. ACS Nano, 2012, 6(1):583-591.
ZHENG J, YUAN X, IKEZAWA M, et al.. Efficient photoluminescence of Mn2+ ions in MnS/ZnS core/shell quantum dots[J]. J. Phys. Chem. C, 2009, 113(39):16969-16974.
YANG Y, CHEN O, ANGERHOFER A, et al.. Radial-position-controlled doping of CdS/ZnS core/shell nanocrystals:surface effects and position-dependent properties[J]. Chem. Eur. J., 2009, 15(13):3186-3197.
陈肖慧, 袁曦, 华杰, 等. 壳层相关的CdSe核/壳量子点发光的热稳定性[J]. 发光学报, 2014, 35(9):1051-1057. CHEN X H, YUAN X, HUA J, et al.. Shell-dependent thermal stability of CdSe core/shell quantum dot photoluminescence[J]. Chin. J. Lumin., 2014, 35(9):1051-1057. (in Chinese)
0
浏览量
52
下载量
10
CSCD
关联资源
相关文章
相关作者
相关机构