Investigation of a polythiophene interface using photoemission spectroscopy in combination with electrospray thin-film deposition
Investigation of a polythiophene interface using photoemission spectroscopy in combination with electrospray thin-film deposition
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DOI：
10.1063/1.2172069
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发表时间：
2006-02-06
影响因子：
4
通讯作者：
Jenekhe, SA
中科院分区：
文献类型：
--
作者：
Cascio, AJ;Lyon, JE;Jenekhe, SA
采用电喷雾薄膜沉积系统，在高真空条件下，将共轭聚合物聚（3-己基噻吩）（P3 HT）分几步直接沉积到高取向热解石墨（HOPG）基底上。通过原位样品转移将沉积系统连接到光电子能谱设置，从而允许在沉积步骤之间用X射线和紫外光电子能谱进行表征。由此产生的一系列光谱，使电离能，功函数，和最高占据的分子轨道结合能的P3 HT覆盖层的测定，同时给出详细的洞察到的轨道排列和偶极子形成的P3 HT/HOPG接触。(c)2006年，美国物理学会。
The conjugated polymer poly(3-hexylthiophene) (P3HT) was deposited in several steps onto a highly oriented pyrolytic graphite (HOPG) substrate directly from solution in high vacuum, using an electrospray thin-film deposition system. The deposition system was attached to a photoemission spectroscopy setup via in situ sample transfer, allowing characterization in between deposition steps with x-ray and ultraviolet photoemission spectroscopy. The resultant series of spectra enabled the determination of the ionization energy, work function, and highest occupied molecular orbital binding energy of the P3HT overlayer, while giving detailed insight into the orbital alignment and dipole formation at the P3HT/HOPG contact. (c) 2006 American Institute of Physics.