Singlet fission in rubrene single crystal: direct observation by femtosecond pump-probe spectroscopy

被引：211

作者：

Ma, Lin ^{[1
]}

Zhang, Keke ^{[2
]}

Kloc, Christian ^{[2
]}

Sun, Handong ^{[1
]}

Michel-Beyerle, Maria E. ^{[1
]}

Gurzadyan, Gagik G. ^{[1
]}

机构：

[1] Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore

[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Div Mat Sci, Singapore 639798, Singapore

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 23期

关键词：

EXCITON FISSION; DELAYED FLUORESCENCE; ULTRAFAST DYNAMICS; TETRACENE;

D O I：

10.1039/c2cp40449d

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：

The excited state dynamics of rubrene in solution and in the single crystal were studied by femtosecond pump-probe spectroscopy under various excitation conditions. Singlet fission was demonstrated to play a predominant role in the excited state relaxation of the rubrene crystal in contrast to rubrene in solution. Upon 500 nm excitation, triplet excitons form on the picosecond time scale via fission from the lowest excited singlet state. Upon 250 nm excitation, fission from upper excited singlet states is observed within 200 fs.

引用

页码：8307 / 8312

页数：6

共 38 条

[1] EXCITON FISSION IN EXCIMER-FORMING CRYSTAL DYNAMICS OF EXCIMER BUILDUP [J].

ALBRECHT, WG ;

MICHELBEYERLE, ME ;

YAKHOT, V .

JOURNAL OF LUMINESCENCE, 1979, 20 (02) :147-149

[2] EXCITATION-SPECTRA OF EXCITON FISSION IN ORGANIC-CRYSTALS [J].

ALBRECHT, WG ;

COUFAL, H ;

HABERKORN, R ;

MICHELBEYERLE, ME .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1978, 89 (01) :261-265

[3] A NEW TYPE OF DELAYED FLUORESCENCE OF RUBRENE IN SOLUTION [J].

BAYRAKCEKEN, F .

JOURNAL OF LUMINESCENCE, 1992, 54 (01) :29-33

[4] High-performance organic single-crystal transistors on flexible substrates [J].

Briseno, Alejandro L. ;

Tseng, Ricky J. ;

Ling, Mang-Mang ;

Falcao, Eduardo H. L. ;

Yang, Yang ;

Wudl, Fred ;

Bao, Zhenan .

ADVANCED MATERIALS, 2006, 18 (17) :2320-+

[5] Excited state dynamics in solid and monomeric tetracene: The roles of superradiance and exciton fission [J].

Burdett, Jonathan J. ;

Mueller, Astrid M. ;

Gosztola, David ;

Bardeen, Christopher J. .

JOURNAL OF CHEMICAL PHYSICS, 2010, 133 (14)

[6] The Origin of a 650 nm Photoluminescence Band in Rubrene [J].

Chen, Yuanzhen ;

Lee, Bumsu ;

Fu, Danni ;

Podzorov, Vitaly .

ADVANCED MATERIALS, 2011, 23 (45) :5370-+

[7] Transient spectroscopy of tetracene single crystals [J].

Frolov, SV ;

Kloc, C ;

Schön, JH ;

Batlogg, B .

CHEMICAL PHYSICS LETTERS, 2001, 334 (1-3) :65-68

[8]

Furube A., 2011, ECS M, V1101, P1831

[9] Near-IR Femtosecond Transient Absorption Spectroscopy of Ultrafast Polaron and Triplet Exciton Formation in Polythiophene Films with Different Regioregularities [J].

Guo, Jiamo ;

Ohkita, Hideo ;

Benten, Hiroaki ;

Ito, Shinzaburo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (46) :16869-16880

[10] THE TRIPLET-STATE ENERGIES OF RUBRENE AND DIPHENYLISOBENZOFURAN [J].

HERKSTROETER, WG ;

MERKEL, PB .

JOURNAL OF PHOTOCHEMISTRY, 1981, 16 (04) :331-341

← 1 2 3 4 →