瞬态吸收光谱表明，钛酸锶中的缓慢双分子复合是其高效光催化性能的基础。
Transient absorption spectroscopy reveals that slow bimolecular recombination in SrTiO underpins its efficient photocatalytic performance.
作者信息
Wilson Anna A, Hart Lucy, Shalvey Thomas, Sachs Michael, Xu Weidong, Moss Benjamin, Mazzolini Eva, Mumtaz Asim, Durrant James R
机构信息
Department of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
Stephenson Institute for Renewable Energy, Department of Physics, University of Liverpool, Liverpool, L69 7ZF, UK.
出版信息
Chem Commun (Camb). 2023 Nov 14;59(91):13579-13582. doi: 10.1039/d3cc04616h.
The charge carrier dynamics of SrTiO are measured by ultrafast transient absorption spectroscopy, revealing bimolecular recombination kinetics that are at least two magnitudes slower than alternative metal oxides. This slow recombination is associated with its high dielectric constant, and suggested to be central to SrTiO's high performance in photocatalytic systems.
通过超快瞬态吸收光谱法测量了SrTiO的电荷载流子动力学，结果表明其双分子复合动力学比其他金属氧化物至少慢两个数量级。这种缓慢的复合与其高介电常数有关，并被认为是SrTiO在光催化系统中高性能的关键。
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