DocumentCode :
1336668
Title :
The Effect of Magnetic Field on Thick Ir(ppy) _{\\bf 3} : Ir(mpp) _{\\bf 3} Nonmagnetic Organi
Author :
Yusoff, Abd Rashid bin Mohd ; Song, Ying ; Holz, Eikner ; Schulz, Dietmar ; Shuib, Saiful Anuar
Author_Institution :
Dept. de Fis., Univ. Fed. do Parana, Curitiba, Brazil
Volume :
11
Issue :
1
fYear :
2012
Firstpage :
160
Lastpage :
163
Abstract :
In this paper, we examined the influence of magnetic field with different substrate temperatures during the deposition of the Ir(ppy):Ir(mpp) blend layer heterojunction organic nonmagnetic organic transistor. It is shown that substrate heating treatment during evaporation leads to a significant improvement in the nonmagnetic metal-base transistor performance mainly due to an increase in current gain and ON-to-OFF current ratio. This is attributed to the improvement of thermal energy. Upon heating the substrate to 110°C in the presence of magnetic field, current gain and ON-to-OFF current ratio of 281 and 3.30 × 106 were obtained compared to 219 and 2.06 × 106 for an identical device prepared at 26°C, respectively. Magnetocurrent effect of ~28% was obtained with applied 2 T and 110°C.
Keywords :
heat treatment; heterojunction bipolar transistors; magnetic field effects; vacuum deposition; Magnetocurrent effect; blend layer; current gain; current ratio; evaporation; film deposition; heated substrate; heating treatment; heterojunction; magnetic field effect; nonmagnetic organic transistor; temperature 110 degC; temperature 26 degC; thermal energy; Magnetic field measurement; Magnetic fields; Magnetoresistance; Performance evaluation; Polymers; Substrates; Temperature dependence; Bipolar transistor; metal-base transistor; polymer blends;
fLanguage :
English
Journal_Title :
Nanotechnology, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-125X
Type :
jour
DOI :
10.1109/TNANO.2011.2169082
Filename :
6031923
Link To Document :
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