TiO ₂ -graphene composite as an application of photoelectrochemical photodetectors with enhanced performances

Ag-nanoparticle-decorated ZnO/ZnSe core-shell heterostructure and its enhanced photoelectrochemical performance

“…Furthermore, the high rate of electron recombination in ZnO and the strong tendency of oxidization under UV irradiation may lead to oxidative deactivation, affecting its photoelectric conversion efficiency and photostability. The introduction of heterostructure [10][11][12][13] and noble metal surface decoration [7,14] will help to address the challenges mentioned above. Formation of heterostructure will accelerate the charge transfer at the interface between semiconductors and electrolytes and speed up the effective separation of electrons and holes.…”

Application of a dual functional blocking layer for improvement of the responsivity in a self-powered UV photodetector based on TiO2 nanotubes

“… 25 Li et al prepared a TiO 2 –graphene composite as the UV sensitive layer in a self-powered UV photodetector, which has the ability to reach the responsivity of 11 μA W −1 . 26 …”

“…25 Li et al prepared a TiO 2 -graphene composite as the UV sensitive layer in a self-powered UV photodetector, which has the ability to reach the responsivity of 11 mA W À1 . 26 In the PEC UV photodetectors based on TiO 2 NTs, the tubes are responsible for UV light absorption. A full absorption of incident UV photons is necessary in a competent UV photodetector.…”

A self-powered photoelectrochemical ultraviolet photodetector based on Ti3C2T x /TiO2 in situ formed heterojunctions

“…For example, Terashima et al prepared a TiO 2 /boron doped diamond heterojunction by radio frequency sputter and microwave plasma chemical vapor deposition for photoelectrochemical (PEC) water splitting, which showed 1.6 times higher PEC activity compared to bare TiO 2 sample [15]. Li et al reported a PEC photodetector based on TiO 2 /graphene composite [16]. Since electron-hole recombination was reduced through the introduction of graphene, the photoresponse was significantly enhanced.…”