TY - JOUR
T1 - Universal size-dependent conductance fluctuations in disordered organic semiconductors
AU - Massé, A.
AU - Coehoorn, R.
AU - Bobbert, P.A.
PY - 2014
Y1 - 2014
N2 - Numerically exact results of hopping charge transport in disordered organic semiconductors show for uncorrelated and dipole-correlated Gaussian energy disorder a universal, power-law, and non-power-law dependence, respectively, of the relative conductance fluctuations on the size of the considered region. Data collapse occurs upon scaling with a characteristic length having a power-law temperature dependence. Below this length, which can be as high as 100 nm for correlated disorder in a realistic case, fluctuations dominate and a continuum description of charge transport breaks down.
AB - Numerically exact results of hopping charge transport in disordered organic semiconductors show for uncorrelated and dipole-correlated Gaussian energy disorder a universal, power-law, and non-power-law dependence, respectively, of the relative conductance fluctuations on the size of the considered region. Data collapse occurs upon scaling with a characteristic length having a power-law temperature dependence. Below this length, which can be as high as 100 nm for correlated disorder in a realistic case, fluctuations dominate and a continuum description of charge transport breaks down.
U2 - 10.1103/PhysRevLett.113.116604
DO - 10.1103/PhysRevLett.113.116604
M3 - Article
C2 - 25259995
SN - 0031-9007
VL - 113
SP - 116604-1/5
JO - Physical Review Letters
JF - Physical Review Letters
M1 - 116604
ER -