2022年1月1日 · The similar rapid change with small amount of F4-TCNQ deposition was detected as the Fermi level shift in the ultra violet photoemission spectroscopy (UPS). The DFT calculation shows the flat lying configuration for both molecules after the structural optimization, and the difference of the charge transfer to the substrate is not large enough ...

2007年4月20日 · We have shown that the energy level alignment at the interfaces of tetrafluorotetracyanoquinodimethane (F4-TCNQ) and the substrates that span work function range from 3.45 to 5.8 eV corresponds to the Fermi level pinning regime. The Fermi level is pinned at 5.55 ± 0.1 eV as measured versus vacuum level.

2014年2月1日 · The influences of F 4-TCNQ on the energy level alignment of Pn films were investigated by UPS. F 4 -TCNQ deposition on the ethylene/Si(1 0 0) leads to an increase in the VL by 1 eV and a decrease in the HIB by 0.6–0.8 eV.

TCNQ UPS spectrum has two discrete peaks before the broad main peak and the TCNE has only one. It seems (by comparing their molecule structure) that one of these peaks could be related to the...

2016年12月12日 · Using ultraviolet photoelectron spectroscopy (UPS), we confirm that IDTBT and TCNQ undergo no charge transfer , as indeed expected from the energy level diagram.

Fig. 1 (a) shows the UPS spectra of the TTF single crystal and samples with different TCNQ thicknesses deposited on TTF single crystals. One notable feature in the spectra is that the spectrum...

我们将TCNQ薄膜逐步暴露于钠蒸气中，并通过X射线光电子能谱（XPS）和紫外光电子能谱（UPS）监控电子结构。 在插入实验期间，观察到三个阶段，它们可能与三个不同阶段有关，主要由TCNQ 0，TCNQ 1−和TCNQ 2−组成。 随着钠含量的增加，费米能级向上移动，新的电子态出现在带隙中。 对于钠含量高的相，钠的扩散似乎被抑制，这归因于TCNQ 1-分子结构中封闭的扩散途 …

We report p-type doping of 2,4-bis [4- (N,N-diisobutylamino)-2,6-dihydroxyphenyl] squaraine (SQ) with 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) by solution processing.

2016年12月1日 · In this work, we explore the electronic structure of a (diC 8 -BTBT) (TCNQ) polycrystalline film by ultraviolet photoemission spectroscopy (UPS) and inverse photoemission spectroscopy (IPES).

2015年5月18日 · We measured the energy level of highest occupied molecular orbital (HOMO) for each doping layer using in-situ ultraviolet photoemission spectroscopy (UPS). On the basis of the energetics studies,...