2019年10月11日 · We show that the PL spectrum of commonly used nanostructured anatase TiO 2 thin films in aqueous media is time-dependent, with pH-dependent broadening at the low energy side of the spectrum in time.

Photoluminescence (PL) spectra of pure TiO2 and TiO2‐vetiver core–shell. [...] The properties and photocatalytic performance of anatase nanoparticles of pure TiO2 and a core-shell structure of...

2021年12月15日 · Understanding the mechanisms of charge generation and their recombination in rutile TiO 2 is of key importance in the design of optoelectronic and photocatalytic devices. In this study, we investigate the impact of both extrinsic and intrinsic defects on photoluminescence (PL) decay dynamics.

2014年2月1日 · Photoluminescence (PL) technique has been widely used in TiO 2 studies to investigate the structure and properties of the active sites on the surface, the efficiency of the charge carrier trapping, migration and transfer in order to understand the behavior of electron–hole pairs in semiconductors, because of its high sensitivity and non-destruct...

Photoluminescence (PL) represents a sensitive tool for probing molecular adsorption and surface reactions in photocatalytic materials. Titanium dioxide (TiO 2) is one of the most widely used photocatalysis, and clarifying its basic PL mechanism can give important information.

2021年12月1日 · Photoinduced carrier dynamics of TiO 2 NPs were investigated by the temperature dependence (TD) photoluminescence (PL) and TD time-resolved PL (TRPL) decays. With varying temperatures from 290 to 77 K, the anatase phase exhibits an additional and dominant 530 nm PL band.

光致发光（pl）代表了一种探测光催化材料中分子吸附和表面反应的灵敏工具。二氧化钛（tio 2 ）是使用最广泛的光催化方法之一，阐明其基本pl机理可以提供重要的信息。然而，与其他电子和表面工艺不同，tio 2 的实际pl机理尚未

2017年4月11日 · Photoluminescence (PL) represents a sensitive tool for probing molecular adsorption and surface reactions in photocatalytic materials. Titanium dioxide (TiO2) is one of...

Accordingly, it is proposed that improved crystallinity (which hindered charge carriers’ recombination, as confirmed by PL), efficient photoabsorption (using the smallest bandgap), and 2D...

2016年12月20日 · Photoluminescence (PL) spectroscopy was used to infer that oxygen adsorption changes the band bending of the anatase phase of TiO 2 within P25 nanopowder in different ways. On the one hand, oxygen can adsorb through irreversible reaction with defects which reduces the intrinsic upward band bending at the TiO 2 surface and results in increased ...