| Electronic structure and chemical reaction of Ca deposition on resiore8ular poly（3-hexylthiophene） surfaces |
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| 引用本文： | ZHAO Wei,GUO YuXian,FENG XueFei,ZHANG Liang,ZHANG WenHua,ZHU JunFa. Electronic structure and chemical reaction of Ca deposition on resiore8ular poly（3-hexylthiophene） surfaces[J]. 科学通报(英文版), 2009, 54(11): 1978-1982. DOI: 10.1007/s11434-009-0184-5 |
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| 作者姓名： | ZHAO Wei GUO YuXian FENG XueFei ZHANG Liang ZHANG WenHua ZHU JunFa |
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| 作者单位： | National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Grant No. 20773111);;Scientific Research Foundation for Returned Scholars,Ministry of Education of China;;Program for New Century Excellent Talents in University (NCET);;Start-up Funding of the University of Science and Technology of China |
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| 摘 要： | Conjugated polymer, regioregular poly（3-hexylthiophene） （rr-P3HT）, films were prepared by spin-coating the rr-P3HT chloroform solution onto clean silicon wafer surfaces. The chemical re- action and electronic structure of Ca deposition on rr-P3HT surfaces were in situ investigated by synchrotron radiation photoemission spectroscopy （SRPES） and X-ray photoemission spectros- copy （XPS）. Upon Ca deposition, Ca-induced band bending of rr-P3HT is observed. In addition, Ca atoms preferentially react with S atoms of rr-P3HT. No obvious reaction between Ca and C atoms can be found. Through the investigation of the evolution of valence band spectra and secondary electron cut-off of rr-P3HT during the process of Ca deposition, an energy level alignment diagram at the Ca/rr-P3HT interface is derived.
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| 关 键 词： | 化学反应 表面清洁 电子结构 钙沉积 X射线光电子光谱 同步辐射光电子能谱 X射线光电子能谱 共轭聚合物 |
| 收稿时间： | 2008-11-19 |
| 修稿时间： | 2009-02-03 |
Electronic structure and chemical reaction of Ca deposition on regioregular poly(3-hexylthiophene) surfaces |
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| Zhao,Wei,Guo,YuXian,Feng,XueFei,Zhang,Liang,Zhang,WenHua,Zhu,JunFa. Electronic structure and chemical reaction of Ca deposition on regioregular poly(3-hexylthiophene) surfaces[J]. Chinese science bulletin, 2009, 54(11): 1978-1982. DOI: 10.1007/s11434-009-0184-5 |
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| Authors: | Zhao Wei Guo YuXian Feng XueFei Zhang Liang Zhang WenHua Zhu JunFa |
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| Affiliation: | (1) National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China |
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| Abstract: | Conjugated polymer, regioregular poly(3-hexylthiophene) (rr-P3HT), films were prepared by spin-coating the rr-P3HT chloroform solution onto clean silicon wafer surfaces. The chemical reaction and electronic structure of Ca deposition on rr-P3HT surfaces were in situ investigated by synchrotron radiation photoemission spectroscopy (SRPES) and X-ray photoemission spectroscopy (XPS). Upon Ca deposition, Ca-induced band bending of rr-P3HT is observed. In addition, Ca atoms preferentially react with S atoms of rr-P3HT. No obvious reaction between Ca and C atoms can be found. Through the investigation of the evolution of valence band spectra and secondary electron cut-off of rr-P3HT during the process of Ca deposition, an energy level alignment diagram at the Ca/rr-P3HT interface is derived. Supported by the National Natural Science Foundation of China (Grant No. 20773111), Scientific Research Foundation for Returned Scholars, Ministry of Education of China, Program for New Century Excellent Talents in University (NCET) and Start-up Funding of the University of Science and Technology of China |
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| Keywords: | synchrotron radiation photoemission XPS rr-P3HT calcium chemical reaction electronic structure |
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