Photoinduced intermolecular electron transfer between oligo(p-phenylene vinylene)s and N-methylfulleropyrrolidine in a polar solvent

被引：30

作者：

van Hal, PA ^{[1
]}

Beckers, EHA ^{[1
]}

Peeters, E ^{[1
]}

Apperloo, JJ ^{[1
]}

Janssen, RAJ ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Lab Macromol & Organ Chem, NL-5600 MB Eindhoven, Netherlands

来源：

CHEMICAL PHYSICS LETTERS | 2000年 / 328卷 / 4-6期

关键词：

D O I：

10.1016/S0009-2614(00)00964-7

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：

Photoinduced intermolecular electron transfer in mixtures of oligo(p-phenylene vinylene)s (OPVns, with n = 2-7, the number of phenyl rings) and N-methylfulleropyrrolidine (MP-C-60) is studied in o-dichlorobenzene photoinduced absorption (PIA) spectroscopy is used to show that photoexcitation of MP-C-60 generates the corresponding triplet state, which is quenched in a one-electron reduction reaction by OPVn for n > 2. The electronic transitions of the photogenerated OPVn(+.) radical cations evolve with conjugation length in a near linear relation with 1/n. Charge transfer in these donor-acceptor systems for n > 2 is in full agreement with the calculated change in free energy for charge separation. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：403 / 408

页数：6

共 18 条

[1]

[Anonymous], 1998, ELECT MAT OLIGOMER A

[2] Pulse radiolysis-optical absorption studies on the triplet states of p-phenylenevinylene oligomers in solution [J].

Candeias, LP ;

Wildeman, J ;

Hadziioannou, G ;

Warman, JM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (35) :8366-8371

[3] LONG-LIVED PHOTOEXCITED STATES IN SYMMETRICAL POLYDICARBAZOLYLDIACETYLENE [J].

DELLEPIANE, G ;

CUNIBERTI, C ;

COMORETTO, D ;

MUSSO, GF ;

FIGARI, G ;

PIAGGI, A ;

BORGHESI, A .

PHYSICAL REVIEW B, 1993, 48 (11) :7850-7856

[4] IMPROVED STRUCTURE OF TRANS-STILBENE [J].

FINDER, CJ ;

NEWTON, MG ;

ALLINGER, NL .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1974, 30 (FEB15) :411-415

[5] Electroluminescence in conjugated polymers [J].

Friend, RH ;

Gymer, RW ;

Holmes, AB ;

Burroughes, JH ;

Marks, RN ;

Taliani, C ;

Bradley, DDC ;

Dos Santos, DA ;

Brédas, JL ;

Lögdlund, M ;

Salaneck, WR .

NATURE, 1999, 397 (6715) :121-128

[6]

Furukawa Y, 1997, PRIMARY PHOTOEXCITATIONS IN CONJUGATED POLYMERS, P496

[7] Effective conjugation length and UV/vis spectra of oligomers [J].

Meier, H ;

Stalmach, U ;

Kolshorn, H .

ACTA POLYMERICA, 1997, 48 (09) :379-384

[8] Measurement of the S0-T1 energy gap in poly(2-methoxy,5-(2′-ethyl-hexoxy)-p-phenylenevinylene) by triplet-triplet energy transfer [J].

Monkman, AP ;

Burrows, HD ;

Miguel, MD ;

Hamblett, I ;

Navaratnam, S .

CHEMICAL PHYSICS LETTERS, 1999, 307 (5-6) :303-309

[9] Tuning of fluorescence in films and nanoparticles of oligophenylenevinylenes [J].

Oelkrug, D ;

Tompert, A ;

Gierschner, J ;

Egelhaaf, HJ ;

Hanack, M ;

Hohloch, M ;

Steinhuber, E .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (11) :1902-1907

[10] Singlet and triplet excitations of chiral dialkoxy-p-phenylene vinylene oligomers [J].

Peeters, E ;

Ramos, AM ;

Meskers, SCJ ;

Janssen, RAJ .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (21) :9445-9454

← 1 2 →