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Understanding Charge Transport in Molecular Blend Films in Terms of Structural Order and Connectivity of Conductive Pathways
Author(s) -
Proctor Christopher M.,
Kher Abhishek S.,
Love John A.,
Huang Ye,
Sharenko Alexander,
Bazan Guillermo C.,
Nguyen ThucQuyen
Publication year - 2016
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201502285
Subject(s) - limiting , stacking , materials science , order (exchange) , charge (physics) , charge carrier , electrical conductor , scattering , computer science , nanotechnology , optoelectronics , physics , optics , finance , quantum mechanics , economics , composite material , mechanical engineering , nuclear magnetic resonance , engineering
The factors limiting charge carrier mobility in solution‐processed small‐molecule solar cells are investigated using a combination of X‐ray scattering techniques and temperature dependent mobility measurements. It is found that order in the π–π stacking direction is correlated with the activation energy for transport while the connectivity of conducting domains is the primary limitation to hole transport in some systems.