Plasmonic Au functionalized 3D SrTiO3/TiO2 hollow nanosphere enables efficient solar water splitting

Built-in electric fields and extra electric fields in the oxygen evolution reaction

“…TiO 2 has garnered attention due to its superior photostability, excellent photocatalytic performance, and suitable bandgap structure. 70,71 However, the recombination of photogenerated carriers and the limited catalytic sites on its surface have prevented it from performing better. Constructing heterojunctions to generate a built-in electric eld at the interface can address these issues, but not all materials can form heterojunctions, whereas extra elds can be applied in most cases.…”

High-Performance Photocatalytic H2 Production Using a Binary Cu/TiO2/SrTiO3 Heterojunction

“…Tailored heterostructures such as TiO 2 /BiPO 4 demonstrated that the combination of semiconductors with the adequate band disposition would exhibit an improved photoactivity with respect to that of the single semiconductors . SrTiO 3 is a photoactive semiconductor that has also shown interesting performance for H 2 production. − The reported band structure for SrTiO 3 clearly allows the suitable cooperative junction with TiO 2 , forming a staggered coupling of bands. , Moreover, due to the nearly epitaxial matching showed by these two semiconductors, a favorable lattice mismatch between the (001) surfaces of the two semiconductors would minimize the strain in the heterostructure. , On this basis, through tailored band gap engineering, the heterostructuration of TiO 2 and SrTiO 3 semiconductors has reported interesting synergies. , …”

“… 16 − 19 The reported band structure for SrTiO 3 clearly allows the suitable cooperative junction with TiO 2 , forming a staggered coupling of bands. 20 , 21 Moreover, due to the nearly epitaxial matching showed by these two semiconductors, a favorable lattice mismatch between the (001) surfaces of the two semiconductors would minimize the strain in the heterostructure. 14 , 22 On this basis, through tailored band gap engineering, the heterostructuration of TiO 2 and SrTiO 3 semiconductors has reported interesting synergies.…”