Upconversion photoluminescence in poly(ladder-type-pentaphenylene) doped with metal (II)-octaethyl porphyrins -: art. no. 061904

被引：79

作者：

Baluschev, S

Keivanidis, PE

Wegner, G

Jacob, J

Grimsdale, AC

Müllen, K

Miteva, T

Yasuda, A

Nelles, G

机构：

[1] Max Planck Inst Polymer Res, D-55128 Mainz, Germany

[2] Sony Deutschland, Mat Sci Lab, D-70327 Stuttgart, Germany

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 06期

关键词：

D O I：

10.1063/1.1857073

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the optimization of the upconversion photoluminescence in films of conjugated polymers doped with platinum porphyrin. The upconversion emission was observed to take place at pump intensities as low as 0.5 kW/cm(2). Comparison between the photoluminescence integral intensity of polyfluorene and ladder-type pentaphenylene polymer shows a five-fold increase of the efficiency of the upconversion process for the latter. The higher upconversion efficiency can be partially attributed to the reduced reabsorption of the photoluminescence in the case of the ladder-type pentaphenylene matrix. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 9 条

[1] CHEN W, 2003, Patent No. 2003030067
[2] Frequency upconversion involving triads and quartets of ions in a Pr3+/Nd3+ codoped fluoroindate glass
Falcao, EL
de Araújo, CB
Messaddeq, Y
[J]. JOURNAL OF APPLIED PHYSICS, 2002, 92 (06) : 3065 - 3070
[3] Ladder-type pentaphenylenes and their polymers:: Efficient blue-light emitters and electron-accepting materials via a common intermediate
Jacob, J
Sax, S
Piok, T
List, EJW
Grimsdale, AC
Müllen, K
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (22) : 6987 - 6995
[4] Up-conversion photoluminescence in polyfluorene doped with metal (II)-octaethyl porphyrins
Keivanidis, PE
Baluschev, S
Miteva, T
Nelles, G
Scherf, U
Yasuda, A
Wegner, G
[J]. ADVANCED MATERIALS, 2003, 15 (24) : 2095 - +
[5] PETROFF PM, 2003, Patent No. 6541788
[6] Bichromophoric interactions and time-dependent excited state mixing in pyrene derivatives. A femtosecond broad-band pump-probe study
Raytchev, M
Pandurski, E
Buchvarov, I
Modrakowski, C
Fiebig, T
[J]. JOURNAL OF PHYSICAL CHEMISTRY A, 2003, 107 (23) : 4592 - 4600
[7] Samoc A, 2002, POL J CHEM, V76, P345
[8] Excitation density and photoluminescence studies of polyfluorene excited by two-photon absorption
Schroeder, R
Ullrich, B
Graupner, W
Scherf, U
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (16) : L313 - L320
[9] Tunable femtosecond pulses in the near-ultraviolet from ultrabroadband parametric amplification
Tzankov, P
Fiebig, T
Buchvarov, I
[J]. APPLIED PHYSICS LETTERS, 2003, 82 (04) : 517 - 519

← 1 →