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- [1] NIR To Visible Upconversion In Rare-Earth Ion-Doped NaYF4 CrystalsOPTICAL COMPONENTS AND MATERIALS VII, 2010, 7598Patel, Darayas论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USAVance, Calvin论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USAKing, Newton论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USAJessup, Malcolm论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USAGreen, Lekara论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USASarkisov, Sergey论文数: 0 引用数: 0 h-index: 0机构: LLC, SSS Opt Technol, Huntsville, AL 35816 USA Oakwood Univ, Dept Math & Comp Sci, 7000 Adventist Blvd, Huntsville, AL 35896 USA
- [2] OPTICAL PROPERTIES AND SIZE DISTRIBUTION OF THE NANO-COLLOIDS MADE OF RARE-EARTH ION-DOPED NaYF4OPTICAL COMPONENTS AND MATERIALS XII, 2015, 9359Patel, Darayas N.论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USALewis, Ashley论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USAWright, Donald M., III论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USALewis, Danielle论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USAValentine, Rueben论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USAValentine, Maucus论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USAWessley, Dennis论文数: 0 引用数: 0 h-index: 0机构: Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USASarkisov, Sergey论文数: 0 引用数: 0 h-index: 0机构: SSS Opt Technol LLC, Huntsville, AL 35816 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USADarwish, Abdalla M.论文数: 0 引用数: 0 h-index: 0机构: Dillard Univ, Dept Phys, New Orleans, LA 70122 USA Oakwood Univ, Dept Math & Comp Sci, Huntsville, AL 35896 USA
- [3] Visible upconversion in rare earth ion-doped Gd2O3 nanocrystalsJournal of Physical Chemistry B, 2004, 108 (50): : 19205 - 19209Guo, Hai论文数: 0 引用数: 0 h-index: 0机构: Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, ChinaDong, Ning论文数: 0 引用数: 0 h-index: 0机构: Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, ChinaYin, Min论文数: 0 引用数: 0 h-index: 0机构: Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, ChinaZhang, Weiping论文数: 0 引用数: 0 h-index: 0机构: Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, ChinaLou, Liren论文数: 0 引用数: 0 h-index: 0机构: Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, ChinaXia, Shangda论文数: 0 引用数: 0 h-index: 0机构: Department of Physics, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China Structure Research Laboratory, Univ. of Sci. and Technol. of China, Academia Sinica, 230026 Hefei, Anhui, China
- [4] Ultraviolet upconversion spectra of sonochemically synthesized doped NaYF4 crystalsCHEMICAL PHYSICS, 2014, 445 : 46 - 52Yildirim, Cansu论文数: 0 引用数: 0 h-index: 0机构: Surface Sci & Technol Ctr, KUYTAM, Istanbul, Turkey Surface Sci & Technol Ctr, KUYTAM, Istanbul, TurkeyBirer, Ozgur论文数: 0 引用数: 0 h-index: 0机构: Surface Sci & Technol Ctr, KUYTAM, Istanbul, Turkey Koc Univ, Dept Chem, TR-34450 Istanbul, Turkey Surface Sci & Technol Ctr, KUYTAM, Istanbul, Turkey
- [5] Rare Earth Ion-Doped Upconversion Nanocrystals: Synthesis and Surface ModificationNANOMATERIALS, 2015, 5 (01): : 1 - 25Chang, Hongjin论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaXie, Juan论文数: 0 引用数: 0 h-index: 0机构: Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays, Nanjing 210023, Jiangsu, Peoples R China Nanjing Univ Posts & Telecommun, Inst Adv Mat, Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 210023, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaZhao, Baozhou论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaLiu, Botong论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaXu, Shuilin论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaRen, Na论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaXie, Xiaoji论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaHuang, Ling论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R ChinaHuang, Wei论文数: 0 引用数: 0 h-index: 0机构: Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Inst Adv Mat, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays, Nanjing 210023, Jiangsu, Peoples R China Nanjing Univ Posts & Telecommun, Inst Adv Mat, Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 210023, Jiangsu, Peoples R China Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Jiangsu, Peoples R China
- [6] Combined Optical and MR Bioimaging Using Rare Earth Ion Doped NaYF4 NanocrystalsADVANCED FUNCTIONAL MATERIALS, 2009, 19 (06) : 853 - 859Kumar, Rajiv论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USANyk, Marcin论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USAOhulchanskyy, Tymish Y.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USAFlask, Christopher A.论文数: 0 引用数: 0 h-index: 0机构: Case Western Reserve Univ, Case Ctr Imaging Res, Cleveland, OH 44106 USA SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USAPrasad, Paras N.论文数: 0 引用数: 0 h-index: 0机构: SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA SUNY Buffalo, Dept Chem, Inst Lasers Photon & Biophoton, Buffalo, NY 14260 USA
- [7] Two-phase solvothermal synthesis of rare-earth doped NaYF4 upconversion fluorescent nanocrystalsMATERIALS LETTERS, 2009, 63 (02) : 325 - 327Wang, Meng论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R ChinaLiu, Jin-Ling论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R ChinaZhang, Yi-Xin论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R ChinaHou, Wei论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R ChinaWu, Xian-Long论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R ChinaXu, Shu-Kun论文数: 0 引用数: 0 h-index: 0机构: Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China Northeastern Univ, Dept Chem, Shenyang 110004, Peoples R China
- [8] Ce3+ ion-doped α-NaYF4 single crystal for UV laserCHINESE OPTICS LETTERS, 2016, 14 (06)Jiang, Dongsheng论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaXia, Haiping论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaZhang, Jian论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaFeng, Zhigang论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaWang, Cheng论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaGu, Xuemei论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaZhang, Yuepin论文数: 0 引用数: 0 h-index: 0机构: Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaJiang, Haochuan论文数: 0 引用数: 0 h-index: 0机构: Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315211, Zhejiang, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R ChinaChen, Baojiu论文数: 0 引用数: 0 h-index: 0机构: Dalian Maritime Univ, Dept Phys, Dalian 116026, Peoples R China Ningbo Univ, Key Lab Photoelect Mat, Ningbo 315211, Zhejiang, Peoples R China
- [9] Preparation and upconversion properties of rare earth doped core-shell Y (OH)3 and β-NaYF4 hybrid nanorodsMATERIALS RESEARCH BULLETIN, 2018, 101 : 61 - 66Jiang, Haili论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaSun, Zisong论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaLiu, Zhihai论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaCheng, Peng论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaLiu, Xuejun论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaSun, Jinghua论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R ChinaLiu, Lu论文数: 0 引用数: 0 h-index: 0机构: Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Sch Sci, Harbin 150001, Heilongjiang, Peoples R China Harbin Engn Univ, Minist Educ China, Key Lab In Fiber Integrated Opt, Harbin 150001, Heilongjiang, Peoples R China
- [10] Research progress on upconversion luminescence and temperature sensing performance based on rare earth-doped NaYF4: Er3+OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2025, 19 (1-2): : 95 - 101Zhang, Yi论文数: 0 引用数: 0 h-index: 0机构: Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Res Ctr Photon & Adv Sensing Technol, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R ChinaZhou, Aihua论文数: 0 引用数: 0 h-index: 0机构: Tianjin Univ Sci & Technol, Coll Sci, Res Ctr Photon & Adv Sensing Technol, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R ChinaCai, Yuanxue论文数: 0 引用数: 0 h-index: 0机构: Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Res Ctr Photon & Adv Sensing Technol, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R ChinaMing, Chengguo论文数: 0 引用数: 0 h-index: 0机构: Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Res Ctr Photon & Adv Sensing Technol, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R ChinaPei, Yumiao论文数: 0 引用数: 0 h-index: 0机构: Tianjin Univ Sci & Technol, Coll Sci, Res Ctr Photon & Adv Sensing Technol, Tianjin 300457, Peoples R China Tianjin Univ Sci & Technol, Coll Sci, Dept Chem, Tianjin 300457, Peoples R China