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使用不同阴离子的新型阳离子铱（III）配合物的光致发光特性及其在白光发光二极管中的应用

The Photoluminescent Properties of New Cationic Iridium(III) Complexes Using Different Anions and Their Applications in White Light-Emitting Diodes.

作者信息

Yang Hui, Meng Guoyun, Zhou Yayun, Tang Huaijun, Zhao Jishou, Wang Zhengliang

机构信息

Key Laboratory of Comprehensive Utilization of Mineral Resources in Ethnic Regions, Joint Research Centre for International Cross-border Ethnic Regions Biomass Clean Utilization in Yunnan, School of Chemistry & Environment, Yunnan Minzu University, Kunming 650500, China.

出版信息

Materials (Basel). 2015 Sep 14;8(9):6105-6116. doi: 10.3390/ma8095296.

DOI:10.3390/ma8095296
PMID:28793555
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5512903/
Abstract

Three cationic iridium(III) complexes [Ir(ppy)₂(phen)][PF₆] (C1), [Ir(ppy)₂(phen)]₂SiF₆ (C2) and [Ir(ppy)₂(phen)]₂TiF₆ (C3) (ppy: 2-phenylpyridine, phen: 1, 10-phenanthroline) using different anions were synthesized and characterized by ¹H Nuclear magnetic resonance (¹HNMR), mass spectra (MS), Fourier transform infrared (FTIR) spectra and element analysis (EA). After the ultraviolet visible (UV-vis) absorption spectra, photoluminescent (PL) properties and thermal properties of the complexes were investigated, complex C1 and C3 with good optical properties and high thermal stability were used in white light-emitting diodes (WLEDs) as luminescence conversion materials by incorporation with 460 nm-emitting blue GaN chips. The integrative performances of the WLEDs fabricated with complex C1 and C3 are better than those fabricated with the widely used yellow phosphor Y₃Al₅O:Ce (YAG). The color rendering indexes of the WLEDs with C1 and C3 are 82.0 and 82.6, the color temperatures of them are 5912 K and 3717 K, and the maximum power efficiencies of them are 10.61 Lm·W and 11.41 Lm·W, respectively.

摘要

合成了三种使用不同阴离子的阳离子铱（III）配合物[Ir(ppy)₂(phen)][PF₆]（C1）、[Ir(ppy)₂(phen)]₂SiF₆（C2）和[Ir(ppy)₂(phen)]₂TiF₆（C3）（ppy：2-苯基吡啶，phen：1,10-菲咯啉），并通过¹H核磁共振（¹HNMR）、质谱（MS）、傅里叶变换红外（FTIR）光谱和元素分析（EA）对其进行了表征。在研究了配合物的紫外可见（UV-vis）吸收光谱、光致发光（PL）性质和热性质后，具有良好光学性质和高热稳定性的配合物C1和C3通过与发射460 nm蓝光的GaN芯片结合，用作白光发光二极管（WLED）中的发光转换材料。用配合物C1和C3制备的WLED的综合性能优于用广泛使用的黄色荧光粉Y₃Al₅O:Ce（YAG）制备的WLED。含C1和C3的WLED的显色指数分别为82.0和82.6，它们的色温分别为5912 K和3717 K，它们的最大功率效率分别为10.61 Lm·W和11.41 Lm·W。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/01c6b4481747/materials-08-05296-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/b14993e578c5/materials-08-05296-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/c09bae1c4ad5/materials-08-05296-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/608bff1a7e22/materials-08-05296-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/06b5e582a6d3/materials-08-05296-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/e17a5afa7aa3/materials-08-05296-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/83466be6f136/materials-08-05296-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/01c6b4481747/materials-08-05296-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/b14993e578c5/materials-08-05296-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/c09bae1c4ad5/materials-08-05296-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/608bff1a7e22/materials-08-05296-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/06b5e582a6d3/materials-08-05296-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/e17a5afa7aa3/materials-08-05296-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/83466be6f136/materials-08-05296-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/33cc/5512903/01c6b4481747/materials-08-05296-g007.jpg

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