Advanced characterization of organic–metal and organic–organic interfaces: from photoelectron spectroscopy data to energy-level diagrams
نویسندگان
چکیده
Abstract Organic–metal and organic–organic interfaces account for the functionality of virtually all organic optoelectronic applications energy-level alignment is particular importance device performance. Often simply estimated by metal work functions ionization energies electron affinities materials. However, various interfacial effects such as push back, mirror forces (also known screening), electronic polarization or charge transfer affect alignment. We perform x-ray ultraviolet photoelectron spectroscopy (XPS UPS) measurements on copper-hexadecafluorophthalocyanine (F 16 CuPc) titanyl-phthalocyanine (TiOPc) thin films Ag(111) use TiOPc bilayers to decouple F CuPc layers from substrate. Even our structurally well-characterized model stepwise preparation vacuum-sublimed samples, a precise assignment vacuum-level shifts remains challenging. Nevertheless, results provide guidelines interpretation XPS UPS data organic–metal interfaces.
منابع مشابه
the role of russia in transmission of energy from central asia and caucuses to european union
پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولzero-kinetic energy photoelectron spectroscopy
where S(t) is the measurement, u f & is the final state, used as a ‘‘screen’’ onto which we project the dynamics, m(Q) is the coordinate dependent dipole coupling and uex(t)& is the evolving state that we wish to study. A range of techniques using different kinds of final states u f & have been implemented: time-resolved fluorescence spectroscopy; ionization/mass spectroscopy; stimulated emissi...
متن کاملFemtosecond energy- and angle-resolved photoelectron spectroscopy
Articles you may be interested in Comment on " Photoelectron angular distributions as a probe of alignment in a polyatomic molecule: Picosecond time-and angle-resolved photoelectron spectroscopy of S1 p-difluorobenzene " [J. Coherent polyatomic dynamics studied by femtosecond time-resolved photoelectron spectroscopy: Dissociation of vibrationally excited C S 2 in the 6 s and 4 d Rydberg states ...
متن کاملZero kinetic energy photoelectron spectroscopy of triphenylene.
We report vibrational information of both the first electronically excited state and the ground cationic state of jet-cooled triphenylene via the techniques of resonantly enhanced multiphoton ionization (REMPI) and zero kinetic energy (ZEKE) photoelectron spectroscopy. The first excited electronic state S1 of the neutral molecule is of A1' symmetry and is therefore electric dipole forbidden in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: JPhys materials
سال: 2022
ISSN: ['2515-7639']
DOI: https://doi.org/10.1088/2515-7639/ac9f6f