Abstract
This study examined the electronic properties of annealed pentacene films in air at various temperatures up to 400 K for 1 min. The carrier mobility in pentacene samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. Upon annealing temperature, the molecule structure is not affected. The room-temperature mobility was drastically increased from 2.42 to 4.73 cm 2/V-s by thermal annealing at 350 K. Hall-effect analysis by using the polaron theory revealed that the enhanced mobility by proper annealing is due to the increased spacing between molecules.
| Original language | English |
|---|---|
| Article number | 113306 |
| Journal | Applied Physics Letters |
| Volume | 101 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 Sep 10 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
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Electronic properties of annealed pentacene films in air at various temperatures up to 400 K. / Tsao, Hou Yen; Lin, Yow Jon.
In: Applied Physics Letters, Vol. 101, No. 11, 113306, 10.09.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - Electronic properties of annealed pentacene films in air at various temperatures up to 400 K
AU - Tsao, Hou Yen
AU - Lin, Yow Jon
PY - 2012/9/10
Y1 - 2012/9/10
N2 - This study examined the electronic properties of annealed pentacene films in air at various temperatures up to 400 K for 1 min. The carrier mobility in pentacene samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. Upon annealing temperature, the molecule structure is not affected. The room-temperature mobility was drastically increased from 2.42 to 4.73 cm 2/V-s by thermal annealing at 350 K. Hall-effect analysis by using the polaron theory revealed that the enhanced mobility by proper annealing is due to the increased spacing between molecules.
AB - This study examined the electronic properties of annealed pentacene films in air at various temperatures up to 400 K for 1 min. The carrier mobility in pentacene samples exhibits unexpectedly strong temperature dependence, implying the domination of tunneling (hopping) at low (high) temperatures. Upon annealing temperature, the molecule structure is not affected. The room-temperature mobility was drastically increased from 2.42 to 4.73 cm 2/V-s by thermal annealing at 350 K. Hall-effect analysis by using the polaron theory revealed that the enhanced mobility by proper annealing is due to the increased spacing between molecules.
UR - http://www.scopus.com/inward/record.url?scp=84866307422&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866307422&partnerID=8YFLogxK
U2 - 10.1063/1.4752739
DO - 10.1063/1.4752739
M3 - Article
AN - SCOPUS:84866307422
VL - 101
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 11
M1 - 113306
ER -