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首页> 外文会议>Next generation (nano) photonic and cell technologies for solar energy conversion >Nanoparticles for solar spectrum conversion
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Nanoparticles for solar spectrum conversion

机译：用于太阳光谱转换的纳米粒子

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摘要

We review the use of nanometer-sized particles (including quantum dots) in the conversion of parts of the solar spectrum incident on solar cells to more usable regions. The modification of the solar spectrum ideally would lead to a narrow-banded incident spectrum at a center wavelength corresponding to an energy that is slightly larger than the band gap of the semiconductor material employed in the solar cell, which would lead to an enhancement of the overall solar energy conversion efficiency. Modification of the spectrum requires down and/or up conversion or shifting of the spectrum, meaning that the energy of photons is modified either to lower (down) or higher (up) energy. Nanostructures such as quantum dots, luminescent dye molecules, and lanthanide-doped glasses are capable of absorbing photons at a certain wavelength and emitting photons at a different (shorter or longer) wavelength. We will discuss down and up conversion and shifting by quantum dots, luminescent dyes, and lanthanide compounds, and assess their potential in contributing to ultimately lowering the cost per kWh of solar generated power.
机译：我们回顾了纳米尺寸颗粒（包括量子点）在将入射在太阳能电池上的部分太阳光谱转换为更多可用区域时的使用。理想地，太阳光谱的修改将导致在中心波长处的窄带入射光谱，该中心波长对应于能量稍大于太阳能电池中使用的半导体材料的带隙的能量，这将导致太阳光谱的增强。整体太阳能转换效率。频谱的修改需要频谱的向下和/或向上转换或移动，这意味着将光子的能量修改为较低（向下）或较高（向上）的能量。诸如量子点，发光染料分子和掺杂镧的玻璃等纳米结构能够吸收特定波长的光子并发射不同（较短或更长）波长的光子。我们将讨论量子点，发光染料和镧系元素化合物的上下转换和移位，并评估它们在最终降低每千瓦时太阳能发电成本方面的潜力。

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