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XPS quantification of the hetero-junction interface energy

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : XPS quantification of the hetero-junction interface energy
นักวิจัย : Ma, Zengsheng , Wang, Yan , Huang, Yongli , Zhou, Zhaofeng , Zhou, Yichun , Zheng, Weitao , Sun, Changqing
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2556
อ้างอิง : Ma, Z., Wang, Y., Huang, Y., Zhou, Z., Zhou, Y., Zheng, W. T., & Sun, C. (2013). XPS quantification of the hetero-junction interface energy. Applied surface science, 265, 71-77. , 0169-4332 , http://hdl.handle.net/10220/16566 , http://dx.doi.org/10.1016/j.apsusc.2012.10.112
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Applied surface science
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

We present an approach for quantifying the heterogeneous interface bond energy using X-ray photoelectron spectroscopy (XPS). Firstly, from analyzing the XPS core-level shift of the elemental surfaces we obtained the energy levels of an isolated atom and their bulk shifts of the constituent elements for reference; then we measured the energy shifts of the specific energy levels upon interface alloy formation. Subtracting the referential spectrum from that collected from the alloy, we can distil the interface effect on the binding energy. Calibrated based on the energy levels and their bulk shifts derived from elemental surfaces, we can derive the bond energy, energy density, atomic cohesive energy, and free energy at the interface region. This approach has enabled us to clarify the dominance of quantum entrapment at CuPd interface and the dominance of polarization at AgPd and BeW interfaces, as the origin of interface energy change. Developed approach not only enhances the power of XPS but also enables the quantification of the interface energy at the atomic scale that has been an issue of long challenge.

บรรณานุกรม :
Ma, Zengsheng , Wang, Yan , Huang, Yongli , Zhou, Zhaofeng , Zhou, Yichun , Zheng, Weitao , Sun, Changqing . (2556). XPS quantification of the hetero-junction interface energy.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ma, Zengsheng , Wang, Yan , Huang, Yongli , Zhou, Zhaofeng , Zhou, Yichun , Zheng, Weitao , Sun, Changqing . 2556. "XPS quantification of the hetero-junction interface energy".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Ma, Zengsheng , Wang, Yan , Huang, Yongli , Zhou, Zhaofeng , Zhou, Yichun , Zheng, Weitao , Sun, Changqing . "XPS quantification of the hetero-junction interface energy."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2556. Print.
Ma, Zengsheng , Wang, Yan , Huang, Yongli , Zhou, Zhaofeng , Zhou, Yichun , Zheng, Weitao , Sun, Changqing . XPS quantification of the hetero-junction interface energy. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2556.