Quantum decoherence in organic charge transport is a complicated but crucial topic. In this paper, several theoretical approaches corresponding to it, from incoherent to coherent, are comprehensively reviewed. We main...Quantum decoherence in organic charge transport is a complicated but crucial topic. In this paper, several theoretical approaches corresponding to it, from incoherent to coherent, are comprehensively reviewed. We mainly focus on the physical insight provided by each theory and extent of its validity. The aim of this review is to clarify some contentious issues and elaborate on the promising perspectives provided by different approaches. The device model approaches based on both continuous and discretized treatments of the transporting layer will be first discussed. The prominent focus of this review will be devoted to the dynamic disorder model and its variants considering that it is the most promising approach to tackle charge transport problems in organic materials. We will also address other theories such as the variational method.展开更多
A key requirement for well performing devices based onorganic semiconductors is to ensure ohmic contacts, where anefficient hole and electron injection and extraction can beachieved at the electrode/semiconductor inte...A key requirement for well performing devices based onorganic semiconductors is to ensure ohmic contacts, where anefficient hole and electron injection and extraction can beachieved at the electrode/semiconductor interfaces. The usualway to obtain ohmic contacts involves fine tuning of the energet-ics at the interfaces by using dopants (p- type and n-type) to con-trol the Fermi level of the semiconductor [1,2], or using suitablemetals or metal oxides as electrodes [3].展开更多
基金supported by the Fundamental Research Funds for the Central Universities(buctrc202103 and buctrc202128)the National Natural Science Foundation of China(52103200,22171019,21975263 and 52273167)+4 种基金SINOPEC(222131)the Open Funds of the State Key Laboratory of Optoelectronic Materials and Technologies(Sun Yat-sen University)the State Key Laboratory of Fine Chemicals(KF2201,Dalian University of Technology)the State Key Laboratory of Luminescent Materials and Devices(2022-skllmd-14)the State Key Laboratory of Supramolecular Structure and Materials(SKLSSM2022036)。
基金supported by the National Natural Science Foundation of China(11134002,10874028)the National Basic Research Program of China(2009CB929204,2012CB921402)
文摘Quantum decoherence in organic charge transport is a complicated but crucial topic. In this paper, several theoretical approaches corresponding to it, from incoherent to coherent, are comprehensively reviewed. We mainly focus on the physical insight provided by each theory and extent of its validity. The aim of this review is to clarify some contentious issues and elaborate on the promising perspectives provided by different approaches. The device model approaches based on both continuous and discretized treatments of the transporting layer will be first discussed. The prominent focus of this review will be devoted to the dynamic disorder model and its variants considering that it is the most promising approach to tackle charge transport problems in organic materials. We will also address other theories such as the variational method.
基金supported by the Knut and Alice Wallenberg Foundation(KAW)through a Wallenberg Scholar grant to Olle Ingans。
文摘A key requirement for well performing devices based onorganic semiconductors is to ensure ohmic contacts, where anefficient hole and electron injection and extraction can beachieved at the electrode/semiconductor interfaces. The usualway to obtain ohmic contacts involves fine tuning of the energet-ics at the interfaces by using dopants (p- type and n-type) to con-trol the Fermi level of the semiconductor [1,2], or using suitablemetals or metal oxides as electrodes [3].
