High resolution XPS spectra of (a) Pb(4f) and (b) S(2p
A precise fit was obtained for two peaks at 161.3 eV and 166.8 eV, corresponding to the core levels of S 2+ in PbS. Cumulatively, XPS analysis confirms the film's primary composition as …
Room-temperature direct synthesis of semi-conductive PbS …
2019年11月13日 · According to X-ray photoelectron spectroscopy (XPS) analysis, as shown in Fig. 3a, b, the iodide to lead (I/Pb) ratio is 0.84 in a spin-coated film of PbS-I NCs, which is …
XPS studies and factor analysis of PbS nanocrystal-doped SiO
1999年7月1日 · PbS nanocrystal-doped SiO 2 glass thin films and a single evaporated PbS film were studied by X-ray photoelectron spectroscopy (XPS) and factor analysis (FA). The …
The role of surface passivation for efficient and photostable PbS ...
2016年4月4日 · To identify the origin of the low efficiency, we performed surface X-ray photoelectron spectroscopy (XPS) to probe the species on the surface of the QDs for both …
Surface chemistry of as-synthesized and air-oxidized PbS …
2018年11月1日 · XPS Pb 4f spectra show that when exposed to air, the peaks from the core PbS and surface Pb(RCOO) 2 and Pb(OH) 2 components, are accompanied by new peaks related …
X-ray photoelectron spectroscopy (XPS) spectra of the PbS QD …
Download scientific diagram | X-ray photoelectron spectroscopy (XPS) spectra of the PbS QD solid treated with TBAI and MPA compared to the untreated film in the energy regions of S 2p …
Full scan XPS spectra of PbS 0.25 thin film. - ResearchGate
The high resolution Pb 4f XPS spectrum of PbS nanoparticles was fitted with two doublets (Fig. S1a), which were associated with Pb 2+ within a PbS chemical environment (Pb 4f 7/2 binding...
铅 | Thermo Fisher Scientific - CN
XPS 光谱解读. Pb4f 区域具有明显的自旋轨道分裂峰 (Δ 金属 =4.87eV)。 铅金属 Pb4f 区域的谱峰峰形不对称。 对暴露于空气后的铅金属进行 O1s 区域分析，结果表明铅的天然氧化物中氢氧 …
Structural and the optical characteristics of PbS x thin films
2022年9月21日 · All PbS x films revealed a single phase PbS (space group F m \(\overline{3 }\) m) and sign for oxide phases. The oxygen is incorporated into the PbS lattice to compensate …
Optimizing Surface Chemistry of PbS Colloidal Quantum Dot for …
2020年11月27日 · Ligand exchange is performed on PbS colloidal quantum dots using conventional PbX2 ligands and KI3 additives via a facile one-step process, which …