研究目的
To review carrier mobility models for disordered organic semiconductors that can be implemented in OTFT simulation software, focusing on analytical and semi-analytical models that account for temperature, carrier concentration, and electric field dependencies.
研究成果
The paper concludes that while various mobility models exist for disordered organic semiconductors, most have significant limitations, particularly in accounting for electric field dependence and realistic disorder. The models by J. O. Oelerich et al. and I. I. Fishchuk et al. are highlighted as the most promising for future implementation in OTFT simulation software. More work is needed to improve these models and integrate them with accurate contact injection descriptions.
研究不足
The review is restricted to analytical and semi-analytical models; it does not cover numerical models or compact modeling. Many models have limitations, such as not accounting for electric field dependence, being based on regular lattices instead of disordered materials, or overestimating mobility values. The shape of the density of states (DOS) in organic semiconductors is still under debate, and accurate implementation in simulation software is lacking.
