微电子
表征(材料科学)
光伏系统
存水弯(水管)
有机半导体
鉴定(生物学)
电子材料
带隙
纳米技术
半导体
材料科学
无定形固体
非晶半导体
工程物理
电气工程
光电子学
工程类
化学
薄膜
环境工程
有机化学
生物
植物
作者
Jack Carr,Sumit Chaudhary
摘要
In any microelectronic device, fundamental physical parameters must be well understood for successful electronic optimization. One such prominent parameter is energetic trap states, which are well-known to plague amorphous or otherwise impure semiconducting materials. Organic semiconductors are no strangers to such states and their electronic properties are evidently tied to these defects. Herein, this article discusses the identification, characterization and mitigation of bandgap residing trap levels in organic photovoltaic devices. A compilation of select studies to date is given and a general outlook is proposed. Organic photovoltaic materials are depicted as multiple trap-level systems with a seemingly continuous distribution of electronic states throughout the bandgap. Some elucidations as to the origins of these electronic states as well as recent works centered on defect removal are also presented.
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