2019年2月10日 · Air annealed WO 3 leads to expansion of valence band. In this work, we propose the synthesis and investigate the band edge properties of WO 3 thin films having an optimum amount of oxygen vacancies for efficient PEC applications.

2020年8月1日 · By absorbing visible energy from solar spectrum, electrons of the VB of WO 3 have possibility to excite and transfer to CB. In addition, WO 3 has suitable conduction band (CB) and valence band (VB) positions with respect to TiO 2 and performs hunter for electrons which are photo-excited and obtained from TiO 2 .

2023年8月29日 · The best Cu–WO3 sample achieves CO and CH4 formation rates of 3.23 and 1.63 μmol‧g−1‧h−1, which are 25 and 27-folds higher than those of pure WO3, respectively. This work may propose a valid approach to engineer WO3 nanoplates for boosting CO2 photocatalytic reduction under visible-light irradiation.

2020年5月15日 · WO 3 /Cu 2O heterojunction was synthesized in situ grown on FTO substrate via a facile hydrothermal followed by electrodeposition method. It has shown that WO3 /Cu 2O heterojunction can not only effectively suppress the corrosion of Cu2O by the photogenerated holes but also achieve high PEC performance without any external bias.

根据我们上面提高，功函数、真空能及和费米能级的关系，很容易得到，相对于标准氢电极的费米能级，WO3为0.89 eV，CoO：0.47 eV。 图1 WO3和CoO的（a，b）UPS和（c，d）VB-XPS谱图。

In this work, a p-n heterojunction film consisting of n-type WO3 and p-type CuFe2O4 was synthesized via two steps. The n-type WO3 film was deposited on the FTO substrate by a doctor-blade...

2017年3月10日 · We developed a self-assembled nanocomposite photoanode composed of epitaxial BiVO4 (BVO) matrix embedded with WO3 (WO) mesocrystal for photoelectrochemical (PEC) water splitting in the visible ...

2013年4月25日 · The valence band (VB) consists mainly of O 2p orbitals, and the conduction band (CB) consists mainly of W 5d orbitals [16–21]. Phase transitions result in changes of the band-gap, E g, due to modifications of the W 5d states.

所述γ-WO 3（001）的表面由一系列VB族元素的掺杂通过第一原理密度泛函理论的手段（DFT）计算与板坯模型结合进行了研究。 我们的结果表明，在富含O的生长条件下，VB元素的掺杂是优先的，在三组VB元素中，用Ta原子替代钨在能量上是有利的。 将VB族原子引入表面导致费米能级向下移动，并且在大多数情况下，像掺杂之前一样，源自平面内氧原子的2p态仍然是费米能级的主要成分。 但是，用Ta掺杂剂取代了6倍配位的钨原子（W 6f在顶层是一种特殊情况，其中刚好 …

Structural features, such as WO3 crystalline phases, TiO2 surface defects, as well as the WO3 (220) to TiO2-A (101) ratio, were the key parameters needed to obtain heterostructures with...