Spectroscopic Fingerprints of Work-Function-Controlled Phthalocyanine Charging on Metal Surfaces
نویسندگان
چکیده
منابع مشابه
Spectroscopic fingerprints of work-function-controlled phthalocyanine charging on metal surfaces.
The electronic character of a π-conjugated molecular overlayer on a metal surface can change from semiconducting to metallic, depending on how molecular orbitals arrange with respect to the electrode's Fermi level. Molecular level alignment is thus a key property that strongly influences the performance of organic-based devices. In this work, we report how the electronic level alignment of copp...
متن کاملSpectroscopic ellipsometry of metal phthalocyanine thin films.
Optical functions of cobalt phthalocyanine, nickel phthalocyanine (NiPc), and iron phthalocyanine (FePc) have been determined by use of spectroscopic ellipsometry in the spectral range 1.55-4.1 eV (300-800 nm). The samples were prepared by evaporation onto glass and silicon substrates. The optical functions were determined by point-to-point fit. Absorption spectra were also measured. The index-...
متن کاملSingle-molecule chemistry of metal phthalocyanine on noble metal surfaces.
To develop new functional materials and nanoscale electronics, researchers would like to accurately describe and precisely control the quantum state of a single molecule on a surface. Scanning tunneling microscopy (STM), combined with first-principles simulations, provides a powerful technique for acquiring this level of understanding. Traditionally, metal phthalocyanine (MPc) molecules, compos...
متن کاملVibrationally promoted electron emission from low work-function metal surfaces.
We observe electron emission when vibrationally excited NO molecules with vibrational state v, in the range of 9 < or = v < or =18, are scattered from a Cs-dosed Au surface. The quantum efficiency increases strongly with v, increasing up to 10(-2) electrons per NO (v) collision, a value several orders of magnitude larger than that observed in experiments with similar molecules in the ground vib...
متن کاملmodeling of controlled particle deposition on to electronically conducting surfaces
<span style="font-family: MSTT31c3f700; font-size...
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: ACS Nano
سال: 2014
ISSN: 1936-0851,1936-086X
DOI: 10.1021/nn5060333