| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5391084 | Chemical Physics Letters | 2006 | 5 Pages |
Abstract
The carrier life time in poly(2,5-bis[N-methyl-N-hexylamino]phenylene vinylene (BAMH-PPV) is measured by photo-conductive sampling. A systematic study of the influence of both external bias electric field and illumination intensity on the photo-conductance of the polymer is carried out. The photo-conductance remained roughly constant with the applied electric field up to 6Â ÃÂ 105Â V/cm. Electric pulsewidths of 2Â ps were measured. The transient carrier mobility is calculated. For 93Â nm thick film the lower limit is estimated to be 0.24Â (cm2/VÂ s) when assuming unity quantum efficiency. This transient mobility value could be 480Â (cm2/VÂ s) when taking quantum efficiency to be 0.05% according to Hendry et al. [E. Hendry, M. Koeberg, J. M. Schins, L.D.A. Siebbeles and M. Bonn, Phys. Rev. B. 70 (2004) 033202].
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
H.Y. Liang, W.L. Cao, M. Du, Y. Kim, W.N. Herman, C.H. Lee,