High Upconversion Efficiency from Hetero Triplet-Triplet Annihilation in Multiacceptor Systems

被引：79

作者：

Cao, Xian ^{[1
]}

Hu, Bo ^{[1
]}

Zhang, Peng ^{[1
]}

机构：

[1] Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2013年 / 4卷 / 14期

基金：

美国国家科学基金会;

关键词：

DELAYED FLUORESCENCE; SINGLET FISSION; ANTHRACENE; BLUE;

D O I：

10.1021/jz401213w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report the observation of very high triplet triplet annihilation (TTA) upconversion efficiency in single-sensitizer/multiacceptor systems. A hetero-TTA process between triplet acceptors of different types is believed to account for the synergistic effect leading to the high upconversion efficiency. The upconversion quantum yield of the dual-acceptor system is much higher than the sum of the two single-acceptor systems.

引用

收藏

页码：2334 / 2338

页数：5

相关论文

共 24 条

[1] Upconversion and anti-stokes processes with f and d ions in solids [J].

Auzel, F .

CHEMICAL REVIEWS, 2004, 104 (01) :139-173

[2] A general approach for non-coherently excited annihilation up-conversion: transforming the solar-spectrum [J].

Baluschev, S. ;

Yakutkin, V. ;

Miteva, T. ;

Wegner, G. ;

Roberts, T. ;

Nelles, G. ;

Yasuda, A. ;

Chernov, S. ;

Aleshchenkov, S. ;

Cheprakov, A. .

NEW JOURNAL OF PHYSICS, 2008, 10

[3] Upconversion with ultrabroad excitation band: Simultaneous use of two sensitizers [J].

Baluschev, S. ;

Yakutkin, V. ;

Wegner, G. ;

Miteva, T. ;

Nelles, G. ;

Yasuda, A. ;

Chernov, S. ;

Aleshchenkov, S. ;

Cheprakov, A. .

APPLIED PHYSICS LETTERS, 2007, 90 (18)

[4] Kinetic Analysis of Photochemical Upconversion by Triplet-Triplet Annihilation: Beyond Any Spin Statistical Limit [J].

Cheng, Yuen Yap ;

Fueckel, Burkhard ;

Khoury, Tony ;

Clady, Raphael G. C. R. ;

Tayebjee, Murad J. Y. ;

Ekins-Daukes, N. J. ;

Crossley, Maxwell J. ;

Schmidt, Timothy W. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (12) :1795-1799

[5] On the efficiency limit of triplet-triplet annihilation for photochemical upconversion [J].

Cheng, Yuen Yap ;

Khoury, Tony ;

Clady, Raphael G. C. R. ;

Tayebjee, Murad J. Y. ;

Ekins-Daukes, N. J. ;

Crossley, Maxwell J. ;

Schmidt, Timothy W. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (01) :66-71

[6] Getting to the (Square) Root of the Problem: How to Make Noncoherent Pumped Upconversion Linear [J].

Haefele, Alexandre ;

Blumhoff, Joerg ;

Khnayzer, Rony S. ;

Castellano, Felix N. .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2012, 3 (03) :299-303

[7] High Triplet Yield from Singlet Fission in a Thin Film of 1,3-Diphenylisobenzofuran [J].

Johnson, Justin C. ;

Nozik, Arthur J. ;

Michl, Josef .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (46) :16302-16303

[8] Anti-Stokes delayed fluorescence from metal-organic bichromophores [J].

Kozlov, DV ;

Castellano, FN .

CHEMICAL COMMUNICATIONS, 2004, (24) :2860-2861

[9] Blue-Emissive Upconversion Nanoparticles for Low-Power-Excited Bioimaging in Vivo [J].

Liu, Qian ;

Yang, Tianshe ;

Feng, Wei ;

Li, Fuyou .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (11) :5390-5397

[10] Low-power green-to-blue and blue-to-UV upconversion in rigid polymer films [J].

Merkel, Paul B. ;

Dinnocenzo, Joseph P. .

JOURNAL OF LUMINESCENCE, 2009, 129 (03) :303-306