MEH-PPV之薄膜製備對於其電荷載子遷移率之影響
Film Fabrication of MEH-PPV and Its Effect on Charge Carrier Mobility
Date Issued
2006
Date
2006
Author(s)
Liang, Chou-Fan
DOI
en-US
Abstract
In this work, two solvents, toluene and chlorobenzene, are used for dissolving MEH-PPV. The physical properties will be different during solvent evaporation for drop cast films due to the different polarity between toluene and chlorobenzene. Besides, different film fabrication processes will give an opportunity to change, said, molecular packing. As a result, this will change the optical properties and electronic properties such as charge carrier mobilities. Different film fabrication of as-cast film and “E-cast” film for both toluene and chlorobenzene solutions were made for charge mobility measurements. The results indicate charge mobility will increase for “E-cast” films compare to normal as-cast films. The corresponding photoluminescence spectra reveal that the “E-cast” films are structureless (amorphous). This result is quite different from that of small molecules and inorganic devices.
Subjects
電荷載子遷移率
飛行時間技術
Conjugated polymer
Charge carrier mobility
Time of flight(TOF)technique
Type
thesis