Bias and temperature dependent charge transport in high mobility cobalt-phthalocyanine thin films

2010 ◽  
Vol 96 (1) ◽  
pp. 013305 ◽  
Author(s):  
S. Samanta ◽  
D. K. Aswal ◽  
A. Singh ◽  
A. K. Debnath ◽  
M. Senthil Kumar ◽  
...  
2015 ◽  
Vol 3 (7) ◽  
pp. 1468-1472 ◽  
Author(s):  
Thomas Lenz ◽  
Moses Richter ◽  
Gebhard J. Matt ◽  
Norman A. Luechinger ◽  
Samuel C. Halim ◽  
...  

In this work, we report on the electrical characterization of nanoparticular thin films of zinc oxide and aluminum-doped ZnO. Temperature-dependent current–voltage measurements revealed that charge transport is well described by the Poole–Frenkel model.


2012 ◽  
Vol 13 (11) ◽  
pp. 2600-2604 ◽  
Author(s):  
Ajay Singh ◽  
S. Samanta ◽  
Arvind Kumar ◽  
A.K. Debnath ◽  
R. Prasad ◽  
...  

2010 ◽  
Author(s):  
S. K. Gupta ◽  
Ajay Singh ◽  
Soumen Samanta ◽  
Arvind Kumar ◽  
A. K. Debnath ◽  
...  

2020 ◽  
Vol 128 (15) ◽  
pp. 155901
Author(s):  
Meenu Sharma ◽  
K. P. Maity ◽  
Sonam Rani ◽  
V. Prasad ◽  
I. Sameera ◽  
...  

2011 ◽  
Author(s):  
A. K. Debnath ◽  
A. Kumar ◽  
S. Samanta ◽  
A. Singh ◽  
D. K. Aswal ◽  
...  

2013 ◽  
Vol 209 ◽  
pp. 52-56
Author(s):  
Arvind Kumar ◽  
Ajay Singh ◽  
S. Samanta ◽  
R. Prasad ◽  
A.K. Debnath ◽  
...  

Charge transport of pure and composite thin films (20 nm thickness) of cobalt phthalocyanine (CoPc) and iron phthalocyanine (FePc) grown by molecular beam epitaxy has been investigated in the temperature range of 300 K-25 K. Composite films with optimum composition showed very high mobility of 110 cm2V-1s-1 at room temperature. X-ray diffraction and UV-Vis studies showed that the films were well oriented with planar co-facial structure. The current density-voltage (J-V) characteristics of composite films showed trap free space charge limited conduction (SCLC) while individual phthalocyanine films showed SCLC with exponential distribution of traps. Several factors such as effect of substrate, very small thickness and effect of mixing two phthalocyanines are responsible for the very high mobility observed in present study.


Nano Letters ◽  
2011 ◽  
Vol 11 (9) ◽  
pp. 3887-3892 ◽  
Author(s):  
Moon Sung Kang ◽  
Ayaskanta Sahu ◽  
David J. Norris ◽  
C. Daniel Frisbie

2010 ◽  
Vol 11 (11) ◽  
pp. 1835-1843 ◽  
Author(s):  
Ajay Singh ◽  
Soumen Samanta ◽  
Arvind Kumar ◽  
A.K. Debnath ◽  
D.K. Aswal ◽  
...  

1989 ◽  
Vol 161 ◽  
Author(s):  
M.B. Lee ◽  
J. Decarlo ◽  
D. Dimarzio ◽  
M. Kesselman

ABSTRACTWe have grown high-mobility LWIR HgCdTe thin films on CdTe substrates, using molecular beam epitaxy (MBE). The structural, optical, and electrical properties of these epilayers were determined by SEM, DCRC, FTIR, and Hall effect measurements. For films of 10 to 11 µm thick and composition X value ranging from 0.152 to 0.172, the highest mobility observed was 7.5 × 105 cm2 /V-sec, and the FWHMs of the rocking curves were 75 to 110 arcsec. We also have carried out the temperature-dependent EXAFS study of HgCdTe.


Author(s):  
Yin-Xiang Li ◽  
Wei Liu ◽  
Meng-Na Yu ◽  
Xue-Mei Dong ◽  
Chang-Jin Ou ◽  
...  

Wide-bandgap organic nanocrystals are developed. The strong emission, efficient charge transport and tunable dual-color lasing characters indicate their superior photoelectric integrated property toward potential multifunctional applications.


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