有机半导体
半导体
纳米技术
橡胶
灵活性(工程)
光电子学
薄膜
薄膜晶体管
二极管
晶体管
半导体器件
材料科学
无定形固体
数码产品
化学
图层(电子)
电气工程
电压
工程类
有机化学
物理化学
统计
数学
作者
Michael Sawatzki-Park,Shu‐Jen Wang,Hans Kleemann,Karl Leo
出处
期刊:Chemical Reviews
[American Chemical Society]
日期:2023-06-14
卷期号:123 (13): 8232-8250
被引量:62
标识
DOI:10.1021/acs.chemrev.2c00844
摘要
Organic semiconductors have opened up many new electronic applications, enabled by properties like flexibility, low-cost manufacturing, and biocompatibility, as well as improved ecological sustainability due to low energy use during manufacturing. Most current devices are made of highly disordered thin-films, leading to poor transport properties and, ultimately, reduced device performance as well. Here, we discuss techniques to prepare highly ordered thin-films of organic semiconductors to realize fast and highly efficient devices as well as novel device types. We discuss the various methods that can be implemented to achieve such highly ordered layers compatible with standard semiconductor manufacturing processes and suitable for complex devices. A special focus is put on approaches utilizing thermal treatment of amorphous layers of small molecules to create crystalline thin-films. This technique has first been demonstrated for rubrene─an organic semiconductor with excellent transport properties─and extended to some other molecular structures. We discuss recent experiments that show that these highly ordered layers show excellent lateral and vertical mobilities and can be electrically doped to achieve high n- and p-type conductivities. With these achievements, it is possible to integrate these highly ordered layers into specialized devices, such as high-frequency diodes or completely new device principles for organics, e.g., bipolar transistors.
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