Nanophotonic perovskite solar cells with a three-dimensional TiO2 nanodendrite scaffold have been fabricated for excellent light trapping and electron collection.

The different-shape Cu2O nanostructured in solar water splitting system serves as the photon absorber structure for modulating photoelectric conversion to challenge the issue of the high resistance and low electronic mobility with the different light trapping effect due to the orientation and geometry of Cu2O. Finite difference time domain (FDTD) simulation results demonstrate that the Cu2O nanostructured of truncated octahedral exhibits photonic Fano resonance compared with the other shapes. The generation rate of electrons and holes can rise with truncated octahedral Cu2O nanostructures on the ZnO nanowires. By combining solar water splitting with photonic Fano resonance, we can use a lower voltage 0.7 V (the standard potential of the water electrolysis is −1.23 V) to splitting water, and then separate H2 and O2 into different electrodes. The hydrogen generation rate of truncated octahedral Cu2O can reach 3 × 10–4 ml/s·cm2, which is about 10 times higher than that of Cu2O in other shapes by modulating photonic Fano resonance, which has the potential application in the field of integrated quantum system in the future.

The optical spintronic injection is a perspective issue about spintronics in semiconductors. Here, we report the simultaneous operation and effective control of the spincurrent from nanostructures in a semiconductor by combining the spin of a photoelectron for hydrogen production. The surface plasmon resonance (SPR) of gold-coated Fe:ZnO or Co:ZnO NRs (nanorods) is excited by the circular polarization light of coherent ℏ/–ℏ injection. The efficiency of spintronic-photoelectrochemical (SPEC) hydrogen production of Au/Fe:ZnO NRs irradiated by coherent ℏ/–ℏ circular polarization is as high as 188.76%, about 5 times higher than pure ZnO NRs. In the study, the system with two qubits can be in any superposition to four different bits, which utilizes quantum mechanical phenomena to improve SPEC hydrogen production efficiency. The injection of optical spintronics is significantly tuned for the environmentally friendly applications as the development of alternative energy.

Over the past few decades, the multifunctional material, metal-organic frameworks(MOFs), has been distinguished for their unique properties such as reticular structure, permanent porosities, high surface area, straightforwardly self-assembly and crystalline nature. On a count of these potentialities, the applications of MOFs can be classified into separation, catalysis, sensing, and biomedicine these four fields. In our studies, we will concentrate on the fields of gas storage and separations, water splitting, CO2 reduction, and White-light emission and so on.