Stability Improvement of Copper Nanoparticles for All-Solid-State Photovoltaic Cells Based on Plasmon Induced Charge Separation with p-Type Semiconductors

摘要

[Introduction] When the resonant light irradiates to a metal nanoparticle, enhanced electric fields on the surface of the particle are generated based on the collective oscillation of the free electrons. This phenomenon is called localized surface plasman resonance (LSPR). Furthermore, when the resonant light irradiates to a metal nanoparticle combined with an n-type semiconductor, the electron is transferred from the metal nanoparticle to the semiconductor. This phenomenon, which is called plasmon-induced charge separation (PICS), can be applied to photocatalysts and solar cells.