FEMTOSECOND EXCITED-STATE DYNAMICS OF A CONJUGATED LADDER POLYMER

被引：10

作者：

WENG, X

KOSTOULAS, Y

FAUCHET, PM

OSAHENI, JA

JENEKHE, SA

机构：

[1] UNIV ROCHESTER,LASER ENERGET LAB,ROCHESTER,NY 14627

[2] UNIV ROCHESTER,DEPT CHEM ENGN,ROCHESTER,NY 14627

[3] UNIV ROCHESTER,CTR PHOTOINDUCED CHARGE TRANSFER,ROCHESTER,NY 14627

[4] UNIV ROCHESTER,INST OPT,ROCHESTER,NY 14627

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.51.6838

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Femtosecond time-resolved absorption measurements were performed on a thin film of the conjugated ladder polymer poly(benzimidazobenzophenanthroline) by using a 2-eV (620-nm) pump and a white-light-continuum probe. Transient photoinduced bleaching of the -* transition accompanied by photoinduced absorption in the optical gap were observed. The photoinduced absorption decays with a fast subpicosecond component and a slow 20-ps component. The experimental results are well accounted for by the self-trapped exciton model. © 1995 The American Physical Society.

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页码：6838 / 6841

页数：4

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