In this paper, radio frequency hydrogen plasma was employed to create surface defects on WO3 nanoparticles. X-ray photoelectron spectroscopy (XPS) and electron spin resonance (ESR) analysis...

In this work, a facile oxidation strategy was developed to prepare novel tungsten disulfide/tungsten trioxide (WS2/WO3) heterostructures for adsorbing organic dyes efficiently by combining the...

2020年7月1日 · The transition of the survey scan, O1s and W4f binding states depending on major fabrication step were analysed by XPS (Fig. 4 (a)-(l)). The O1s high-resolution spectra were de-convoluted to present the chemical binding energies, i.e., W-O (530.5–530.7 eV), oxygen vacancy (531.5–531.7 eV), and absorb oxygen or O-OH (532.5–532.8 eV) [27 ...

2023年8月29日 · Figure 3c displays the O1s XPS spectra of WO 3 and Cu–WO3. The wide peak can be fitted into three peaks centered at 529.9, 531.3, and 532.8 eV for pristine WO 3 and 529.7, 531.1, and 532.6 eV for Cu–WO3, respectively, which can be assigned to the crystal lattice oxygen (O latt ) and adsorbed oxygen (O ads ) species, respectively [ 41 ].

2022年3月5日 · As shown in Fig. 4 (a), the typical XPS peaks of W4f, W4d, and the XPS peaks of O1s verify the completion of tungsten oxide film preparation. Fig. 4 (b) shows the high-resolution W 4f XPS spectra and the corresponding deconvolution results for three samples synthesized in …

Tungsten oxide (WO3) is prepared by a low-temperature ultrasonic spray pyrolysis method in air atmosphere, and it is used as an anode buffer layer (ABL) for organic solar cells (OSCs). The...

2007年5月1日 · Nanodisperse WO 3−x oxides (x ≥ 0) were synthesized by method of electrical explosion of wires. The structure of core levels W4f and O1s was explored by XPS-method. Exposure of oxides to air at 293 K leads to the formation of WO 3 · (OH 2) n -phase on the surface of nanoparticles.

摘要 采用金属丝电爆法合成了纳米分散WO 3− x 氧化物( x ≥ 0)。核心层 W4f 和 O1s 的结构是通过 XPS 方法探索的。氧化物在 293 K 的空气中暴露导致在纳米颗粒表面形成 WO 3 ·(OH 2 ) n 相。揭示了非化学计量的 WO 3- x 氧化物基质的 x 值与其中的 OH 基团含量之间的相关性。

wo3 是典型的阴极电致 变色的材料之一, 同时也是目前为止研究和应用最广 泛的电致变色材料, 这是由于 wo 3 薄膜具有可见光透 射率变化幅度大、 循环可逆性好、 相对价格低、 使用寿 命长和无毒等优点, 因此成为人们研究的热点。

为了确定单斜WO3的W-4f和O-1s芯能级结合能(core-level biห้องสมุดไป่ตู้ding energies BEs)，研究人员在一系列的研究中都应用了XPS技术，同时WO2的类似的光谱也有报道，WO3的XPS价带能谱由colon和rabalais得出，Bringan等则用UPS来研究WO3的价带。