Interface formation and energy level alignment of pentacene on SiO2

2003 ◽  
Vol 94 (9) ◽  
pp. 5782-5786 ◽  
Author(s):  
N. J. Watkins ◽  
Yongli Gao
Keyword(s):  
Energy Level ◽  
Interface Formation ◽  
Energy Level Alignment

Energy Level Alignment at Fullerene/Phthalocyanine Interface Studied by Electron Spectroscopies

2003 ◽  
Vol 771 ◽  
Author(s):  
Hisao Ishii ◽  
Atsushi Seko ◽  
Akira Kawakami ◽  
Kazunori Umishita ◽  
Yukio Ouchi ◽  
...  
Keyword(s):  
Energy Level ◽  
Photovoltaic Cells ◽  
Energy Shift ◽  
Metal Electrode ◽  
Organic Photovoltaic ◽  
Level Shift ◽  
Organic Photovoltaic Cells ◽  
Interface Formation ◽  
Band Bending ◽  
Energy Level Alignment

AbstractInterfacial band offset and band bending of organic semiconductors are critical to understand and improve organic photovoltaic cells. In this study, the energy level alignment of fullerene(C60) / metal-free phthalocyanine (H2Pc) interface which is one of the model interfaces of organic photovoltaic cells has been investigated using UV and X-ray photoemissions. For both ‘H2Pc on C60’ and “C60 on H2Pc' interfaces, 0.3 eV downward energy level shift was observed in XPS at the interface formation. This energy shift is quite steep in contrast to the band bending observed for C60/metal interfaces in our previous study, where thickness of 500nm was required to achieve 0.21eV band bending to get Fermi level alignment between metal electrode and C60. To clarify the origin of the band bending, the effect of the insertion of C60-H2Pc co-deposited layer between C60 and H2Pc layers was also investigated. The result suggested that possible doping of H2Pc to C60 is not main origin of the observed energy shift. We also found that the vacuum level shift at H2Pc/C60 interface is strongly dependent on the deposition sequence of the interface formation.

scholarly journals Energy Level Alignment at the C 60 /Monolayer‐WS 2 Interface on Insulating and Conductive Substrates

2021 ◽  
pp. 2100425
Author(s):  
Jie Ma ◽  
Patrick Amsalem ◽  
Thorsten Schultz ◽  
Dongguen Shin ◽  
Xiaomin Xu ◽  
...  
Keyword(s):  
Energy Level ◽  
Energy Level Alignment ◽  
Conductive Substrates

Energy level alignment at Alq/metal interfaces

1998 ◽  
Vol 72 (13) ◽  
pp. 1593-1595 ◽  
Author(s):  
S. T. Lee ◽  
X. Y. Hou ◽  
M. G. Mason ◽  
C. W. Tang
Keyword(s):  
Energy Level ◽  
Energy Level Alignment ◽  
Metal Interfaces
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