共轭聚合物 有机半导体 英文
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共轭聚合物有机半导体英文英文回答:
Conjugated polymers are a class of organic semiconductors that have alternating single and double bonds along their backbone. This unique structure gives conjugated polymers interesting electrical and optical properties, making them promising candidates for use in various electronic applications.
Conjugated polymers are typically synthesized via chemical polymerization techniques, such as oxidative coupling or Heck reaction. The resulting polymers are typically soluble in organic solvents and can be processed into thin films using techniques such as spin coating or drop casting.
The electrical properties of conjugated polymers are highly dependent on the degree of conjugation, which is the length of the alternating single and double bond sequence.
Longer conjugation lengths lead to higher charge carrier mobility and lower bandgap, making the polymer more conductive and semiconducting, respectively.
The optical properties of conjugated polymers are also affected by the degree of conjugation. Longer conjugation lengths lead to absorption and emission of light at longer wavelengths, resulting in a red shift in the polymer's absorption and emission spectra.
Conjugated polymers have been used in a variety of electronic applications, including organic solar cells, organic light-emitting diodes (OLEDs), and transistors. In organic solar cells, conjugated polymers act as the active layer, absorbing light and generating charge carriers that are then collected by the electrodes. In OLEDs, conjugated polymers are used as the emitting layer, emitting light when an electric current is applied. In transistors, conjugated polymers are used as the semiconductor channel, controlling the flow of current between the source and drain electrodes.
Conjugated polymers are a promising class of materials for use in electronic applications due to their unique electrical and optical properties. Further research is needed to improve the performance and stability of conjugated polymers, but they have the potential to revolutionize the field of electronics.
中文回答:
共轭聚合物是有机半导体的一种,其主链上交替排列着单键和双键。
这种独特的结构赋予了共轭聚合物有趣的电学和光学性质,使其成为各种电子应用中的有希望的候选者。
共轭聚合物通常通过化学聚合技术合成,例如氧化偶联或赫克反应。
所得的聚合物通常溶于有机溶剂,并且可以使用旋涂或滴涂等技术加工成薄膜。
共轭聚合物的电学性质在很大程度上取决于共轭度,即交替单键和双键序列的长度。
更长的共轭长度导致更高的电荷载流子迁移率和更低的带隙,分别使聚合物更导电和半导体。
共轭聚合物的。