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以波长为780 nm、重复频率为76 MHz、脉宽为130 fs的飞秒激光作为激发光源, 采用超快时间分辨光谱技术研究了CdTe量子点-铜酞菁复合体系的荧光共振能量转移. 实验结果表明, 在780 nm的双光子激发条件下, 复合体系中CdTe量子点的荧光寿命随着铜酞菁溶液浓度的增加而减少, 荧光共振能量转移效率增加. 同时也研究了激发功率对荧光共振能量转移效率的影响. 结果表明, 随着激发光功率的增加, 复合体系溶液中CdTe量子点的荧光寿命增加, 荧光共振能量转移效率减小, 其物理机理是因为高激发功率下的热效应和由双光子诱导的高阶激发态的跃迁. 当激发光功率为200 mW时, 双光子荧光共振能量转移效率为43.8%. 研究表明CdTe量子点-铜酞菁复合体系是非常有潜力的第三代光敏剂.The fluorescence resonance energy transfer in CdTe quantum dots (QDs)-copper phthalocyanine (CuPc) is investigated by ultrafast time-resolved spectroscopy technique equipped with femtosecond laser (780 nm, 76 MHz, 130 fs). The results show that the fluorescence lifetime of CdTe QDs decreases with the increase of CuPc concentration, and the energy transfer efficiency is found to increase with the increase of CuPc concentration. Moreover, the influence of the laser excitation power on the energy transfer efficiency is also studied. It is found that transfer efficiency decreases as excitation laser power increases, the physical mechanism is the thermal activation in the high power and the excited state transitions of high order induced by two-photon. The energy transfer efficiency can reach 43.8%, when the laser power is 200 mW, via two-photon excitation. This study indicates that the CdTe QDs-CuPc composite system has high potential as the third generation of photosensitizers.
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Keywords:
- CdTe quantum dot /
- copper phthalocyanine /
- fluorescence resonance energy transfer /
- two-photon excitation
[1] Wang J, Long Y T, Zhang Y L, Zhong X H, Zhu L Y 2009 Chem. Phys. Chem. 10 680
[2] Cao C, Wang C, Zhang R 2012 Chin. Phys. B 21 110305
[3] Hong W P, Park S H 2011 Chin. Phys. B 20 098502
[4] An L M, Yang Y Q, Song W S, Su W H, Zeng Q H, Chao K F, Kong X G 2009 Acta Phys. Sin. 58 7914 (in Chinese) [安利民, 杨延强, 宋维斯, 苏文辉, 曾庆辉, 朝克夫, 孔祥贵 2009 58 7914]
[5] Nie W J 1993 Adv. Mater. 5 520
[6] Wang K X, Pang F F, Wang T Y 2007 Chin. J. Lasers 34 398 (in Chinese) [王克新, 庞拂飞, 王廷云 2007 中国激光 34 398]
[7] Chestnoy N, Harris T D, Hull R, Brus L E 1986 Phys. Chem. 90 3393
[8] Jain R K, Lind R C 1983 Opt. Soc. Am. 73 647
[9] Arunkumar P, Mark G 2013 Nanoscience 1 208
[10] Gan F X 1991 Non-Cryst. Solids 129 299
[11] Liu Y M, Yu Z Y, Ren X M 2009 Chin. Phys. B 18 9
[12] Deng Z T, Cao L, Tang F Q, Zou B S 2005 Phys. Chem. B 109 16671
[13] Gao M Y, Kirstein S, Wald H M 1998 Phys. Chem. B 102 8360
[14] Chen Q D, Ma Q, Wan Y, Su X G, Lin Z B, Jin Q H 2005 Luminescence 20 251
[15] Allison M D, Bao G 2008 Nano Lett. 8 1439
[16] Ji Z, Xiang Y, Yasukiyo U 2004 Prog. Org. Coat. 49 180
[17] Yuan G C, Xu Z, Zhao S L, Zhang F J, Jiang W W, Huang J Z, Song D D, Zhu H N, Huang J Y, Xu X R 2008 Acta Phys. Sin. 57 5911 (in Chinese) [袁广才, 徐征, 赵谡玲, 张福俊, 姜薇薇, 黄金昭, 宋丹丹, 朱海娜, 黄金英, 徐叙瑢 2008 57 5911]
[18] Ye W G, Liu D, Peng X F, Dou W D 2013 Chin. Phys. B 22 117301
[19] Guo R D, Yue S Z, Wang P, Chen Y, Zhao Y, Liu S Y 2013 Chin. Phys. B 22 127304
[20] Qiao S Z, Kang S S, Qin Y F, Li Q, Zhong H, Kang Y, Yu S Y, Han G B, Yan S S, Mei L M 2014 Chin. Phys. B 23 058501
[21] Hasi W L J, Geng X Z, Jin C Y, Fan R Q, Lin D Y, He W M, L Z W 2011 Acta Phys. Sin. 60 104212 (in Chinese) [哈斯乌力吉, 耿西钊, 靳朝颖, 范瑞清, 林殿阳, 何伟明, 吕志伟 2011 60 104212]
[22] Liu D J, Duan Q, Wang F, Wang L J 2005 Chin. J. Laser 32 969 (in Chinese) [刘大军, 段潜, 王舫, 王立杰 2005 中国激光 32 969]
[23] Perry J W, Mansour K, Marder S R, Perry K J, Alvarez D, Choong I 1994 Opt. Lett. 19 625
[24] Samia A C, Chen X, Burda C 2003 J. Am. Chem. Soc. 125 15736
[25] Shi L X, Hernandez B, Selke M 2006 J. Am. Chem. Soc. 128 6278
[26] Hsieh J M, Ho M L, Wu P W, Chou P T, Tsai T T, Yun C 2006 Chem. Commun. 6 615
[27] Ma J, Chen J Y, Idowu M, Nyokong T 2008 J. Phys. Chem. B 112 4465
[28] Nyk M, Palewska K, Kepinski L, Wilk K A, Strek W, Samoc M 2010 J. Luminescence 130 2487
[29] Beck T J, Burkanas M, Bagdonas S, Krivickiene Z, Beyer W, Sroka R, Baumgartner R, Rotomskis R 2007 J. Photochem. Potobiol. B: Biology 87 174
[30] Collins H A, Khurana M, Moriyama E H, Mariampillai A, Dahlstedt E, Balaz M, Kuimova M K, Drobizhev M, Yang V X D, Phillips D, Rebane A, Wilson B C, Anderson H L 2008 Nat. Photon. 2 420
[31] Li F, Li X G 2012 Opt. Commun. 285 5217
[32] Li F, Lu P X 2008 Opt. Express 16 14571
-
[1] Wang J, Long Y T, Zhang Y L, Zhong X H, Zhu L Y 2009 Chem. Phys. Chem. 10 680
[2] Cao C, Wang C, Zhang R 2012 Chin. Phys. B 21 110305
[3] Hong W P, Park S H 2011 Chin. Phys. B 20 098502
[4] An L M, Yang Y Q, Song W S, Su W H, Zeng Q H, Chao K F, Kong X G 2009 Acta Phys. Sin. 58 7914 (in Chinese) [安利民, 杨延强, 宋维斯, 苏文辉, 曾庆辉, 朝克夫, 孔祥贵 2009 58 7914]
[5] Nie W J 1993 Adv. Mater. 5 520
[6] Wang K X, Pang F F, Wang T Y 2007 Chin. J. Lasers 34 398 (in Chinese) [王克新, 庞拂飞, 王廷云 2007 中国激光 34 398]
[7] Chestnoy N, Harris T D, Hull R, Brus L E 1986 Phys. Chem. 90 3393
[8] Jain R K, Lind R C 1983 Opt. Soc. Am. 73 647
[9] Arunkumar P, Mark G 2013 Nanoscience 1 208
[10] Gan F X 1991 Non-Cryst. Solids 129 299
[11] Liu Y M, Yu Z Y, Ren X M 2009 Chin. Phys. B 18 9
[12] Deng Z T, Cao L, Tang F Q, Zou B S 2005 Phys. Chem. B 109 16671
[13] Gao M Y, Kirstein S, Wald H M 1998 Phys. Chem. B 102 8360
[14] Chen Q D, Ma Q, Wan Y, Su X G, Lin Z B, Jin Q H 2005 Luminescence 20 251
[15] Allison M D, Bao G 2008 Nano Lett. 8 1439
[16] Ji Z, Xiang Y, Yasukiyo U 2004 Prog. Org. Coat. 49 180
[17] Yuan G C, Xu Z, Zhao S L, Zhang F J, Jiang W W, Huang J Z, Song D D, Zhu H N, Huang J Y, Xu X R 2008 Acta Phys. Sin. 57 5911 (in Chinese) [袁广才, 徐征, 赵谡玲, 张福俊, 姜薇薇, 黄金昭, 宋丹丹, 朱海娜, 黄金英, 徐叙瑢 2008 57 5911]
[18] Ye W G, Liu D, Peng X F, Dou W D 2013 Chin. Phys. B 22 117301
[19] Guo R D, Yue S Z, Wang P, Chen Y, Zhao Y, Liu S Y 2013 Chin. Phys. B 22 127304
[20] Qiao S Z, Kang S S, Qin Y F, Li Q, Zhong H, Kang Y, Yu S Y, Han G B, Yan S S, Mei L M 2014 Chin. Phys. B 23 058501
[21] Hasi W L J, Geng X Z, Jin C Y, Fan R Q, Lin D Y, He W M, L Z W 2011 Acta Phys. Sin. 60 104212 (in Chinese) [哈斯乌力吉, 耿西钊, 靳朝颖, 范瑞清, 林殿阳, 何伟明, 吕志伟 2011 60 104212]
[22] Liu D J, Duan Q, Wang F, Wang L J 2005 Chin. J. Laser 32 969 (in Chinese) [刘大军, 段潜, 王舫, 王立杰 2005 中国激光 32 969]
[23] Perry J W, Mansour K, Marder S R, Perry K J, Alvarez D, Choong I 1994 Opt. Lett. 19 625
[24] Samia A C, Chen X, Burda C 2003 J. Am. Chem. Soc. 125 15736
[25] Shi L X, Hernandez B, Selke M 2006 J. Am. Chem. Soc. 128 6278
[26] Hsieh J M, Ho M L, Wu P W, Chou P T, Tsai T T, Yun C 2006 Chem. Commun. 6 615
[27] Ma J, Chen J Y, Idowu M, Nyokong T 2008 J. Phys. Chem. B 112 4465
[28] Nyk M, Palewska K, Kepinski L, Wilk K A, Strek W, Samoc M 2010 J. Luminescence 130 2487
[29] Beck T J, Burkanas M, Bagdonas S, Krivickiene Z, Beyer W, Sroka R, Baumgartner R, Rotomskis R 2007 J. Photochem. Potobiol. B: Biology 87 174
[30] Collins H A, Khurana M, Moriyama E H, Mariampillai A, Dahlstedt E, Balaz M, Kuimova M K, Drobizhev M, Yang V X D, Phillips D, Rebane A, Wilson B C, Anderson H L 2008 Nat. Photon. 2 420
[31] Li F, Li X G 2012 Opt. Commun. 285 5217
[32] Li F, Lu P X 2008 Opt. Express 16 14571
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