Open AccessCharge-carrier transport properties of blend film of Alq3 and CdSeS quantum dot
Author(s) -
Shuping Zhang,
Yang Ze-Chao,
Yajing Peng,
Yinghui Wang,
Yuqiang Liu,
Yanqiang Yang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.518
Subject(s) - quantum dot , charge (physics) , charge carrier , materials science , electron mobility , electron , optoelectronics , electron transport chain , chemical physics , nanotechnology , physics , chemistry , quantum mechanics , biochemistry
The charge-carrier mobility of the blend films consisting of organic small molecule and quantum dots (QDs)Alq3 and CdSeSare studied by time-of-flight (TOF) technique. The dependence of charge-carrier mobility in the blend films on electric filed and QD concentration is measured. The results show that the positional disorder in the blend films are increased with the increase of QD concentration. Moreoverthe charge transport mechanisms between Alq3 and QDs and the number of electron hoppings between QDs will lead to the change of the charge-carrier mobility.