有机半导体
半导体
数码产品
电解质
有机电子学
纳米技术
兴奋剂
材料科学
化学物理
光电子学
化学
电极
物理
晶体管
物理化学
电压
量子力学
作者
Mats Fahlman,Simone Fabiano,Viktor Gueskine,Daniel T. Simon,Magnus Berggren,Xavier Crispin
标识
DOI:10.1038/s41578-019-0127-y
摘要
Undoped, conjugated, organic molecules and polymers possess properties of semiconductors, including the electronic structure and charge transport, which can be readily tuned by chemical design. Moreover, organic semiconductors (OSs) can be n-doped or p-doped to become organic conductors and can exhibit mixed electronic and ionic conductivity. Compared with inorganic semiconductors and metals, organic (semi)conductors possess a unique feature: no insulating oxide forms on their surface when exposed to air. Thus, OSs form clean interfaces with many materials, including metals and other OSs. OS–metal and OS–OS interfaces have been intensely investigated over the past 30 years, from which a consistent theoretical description has emerged. Since the 2000s, increased attention has been paid to interfaces in organic electronics that involve dielectrics, electrolytes, ferroelectrics and even biological organisms. In this Review, we consider the central role of these interfaces in the function of organic electronic devices and discuss how the physico-chemical properties of the interfaces govern the interfacial transport of light, excitons, electrons and ions, as well as the transduction of electrons into the molecular language of cells. Organic semiconductors form clean interfaces with diverse materials, including metals, other organic semiconductors, electrolytes, dielectrics and biological organisms. In this Review, we discuss the properties of these interfaces and their central role in the function of organic electronic devices.
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