Hole Mobilities in Trivalent Metal Phthalocyanine Thin Films. 1. Activated Charge Transport in Time-of-Flight Measurements between 333 and 213 K for Chloroaluminum Phthalocyanine Films with Various Amounts of Disorder

1997 ◽  
Vol 101 (6) ◽  
pp. 891-900 ◽  
Author(s):  
A. Ioannidis ◽  
J. P. Dodelet
2012 ◽  
Vol 101 (13) ◽  
pp. 133301 ◽  
Author(s):  
Elsa Couderc ◽  
Nicolas Bruyant ◽  
Angela Fiore ◽  
Frédéric Chandezon ◽  
David Djurado ◽  
...  

2000 ◽  
Vol 109 (1-3) ◽  
pp. 173-176 ◽  
Author(s):  
G. Juska ◽  
K. Arlauskas ◽  
R. Österbacka ◽  
H. Stubb

2000 ◽  
Vol 15 (11) ◽  
pp. 2494-2498 ◽  
Author(s):  
Yang Yuan ◽  
Brian A. Gregg ◽  
Marcus F. Lawrence

Time-of-flight measurements performed on micron-thick films of liquid-crystalline zinc octakis(β-octoxyethyl) porphyrin indicated that charge carriers possess significantly high drift mobilities, attaining approximately 0.01 cm2 V−1s −1 and 0.008 cm2 V−1s −1 for holes and electrons, respectively, at room temperature. Upon heating the samples from 300 to 420 K, causing the porphyrin to go from the solid-crystalline to the discotic mesophase, the mobilities did not decrease drastically, and remained at values slightly larger than half those observed at room temperature. Charge transport in this material conformed to the Scher–Montroll model, which attributes a distribution of hopping times to the propagation of the initially formed charged carrier packet. Analysis of the “universal” plots prescribed by this model yielded a dispersion factor of 0.5 for both charge carriers.


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