| 摘要 |
An optoelectronic device employs optically responsive nanoparticles 106 and utilises a non-radiative energy transfer mechanism.The nanoparticles are disposed in proximity to a window layer 105 of a photovoltaic device in order to extract light energy absorbed by the window layer and recycle it to an energy absorbing region of the photovoltaic device electronic structure. The energy is transferred from the window layer to the nanoparticles non-radiatively through non-contact dipole-dipole interaction and is emitted luminescently by the nanoparticles at a longer wavelength that can be absorbed in the energy absorbing region. The luminescent downshifting technique finds particular application in light harvesting devices, such as photovoltaic (solar) cells. |
