| 摘要 |
A method and composition for producing a photoactive material including photocatalytic capped colloidal nanocrystals (PCCN) and plasmonic nanoparticles are disclosed. The PCCN may include a semiconductor nanocrystal synthesis and an exchange of organic capping agents with inorganic capping agents. Additionally, the PCCN may be deposited between the plasmonic nanoparticles, and may act as photocatalysts for redox reactions. The photoactive material may be used in a plurality of photocatalytic energy conversion applications, such as water splitting and C02 reduction. By combining different semiconductor materials for PCCN and plasmonic nanoparticles, and by changing their shapes and sizes, band gaps may be tuned to expand the range of wavelengths of sunlight usable by the photoactive material. Higher light harvesting and energy conversion efficiency may be achieved. |
