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首页> 外文期刊>Journal of photochemistry and photobiology, C. Photochemistry reviews >Dye-sensitized solar cells
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Dye-sensitized solar cells

机译：染料敏化太阳能电池

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摘要

The dye-sensitized solar cells (DSC) provides a technically and economically credible alternative concept to present day p-n junction photovoltaic devices. In contrast to the conventional systems where the semiconductor assume both the task of light absorption and charge carrier transport the two functions are separated here. Light is absorbed by a sensitizer, which is anchored to the surface of a wide band semiconductor. Charge separation takes place at the interface via photo-induced electron injection from the dye into the conduction band of the solid. Carriers are transported in the conduction band of the semiconductor to the charge collector. The use of sensitizers having a broad absorption band in conjunction with oxide films of nanocrstalline morphology permits to harvest a large fraction of sunlight. Nearly quantitative conversion of incident photon into electric current is achieved over a large spectral range extending from the UV to the near IR region. Overall solar (standard AM 1.5) to current conversion efficiencies (IPCE) over 10% have been reached. There are good prospects to produce these cells at lower cost than conventional devices. Here we present the current state of the field, discuss new concepts of the dye-sensitized nanocrystalline solar cell (DSC) including heterojunction variants and analyze the perspectives for the future development of the technology.
机译：染料敏化太阳能电池（DSC）为当今的p-n结光伏器件提供了技术上和经济上可靠的替代概念。与常规系统相反，在常规系统中，半导体同时承担光吸收和载流子传输的任务，这两个功能在此处是分开的。光被敏化剂吸收，敏化剂固定在宽带半导体的表面上。通过从染料到固体的导带中的光诱导电子注入，在界面上发生电荷分离。载流子在半导体的导带中传输到电荷收集器。具有宽吸收带的敏化剂与纳米结晶形态的氧化膜的结合使用可以收获大部分阳光。在从紫外线到近红外区域的大光谱范围内，实现了入射光子到电流的近乎定量的转换。总体太阳能（标准AM 1.5）到电流转换效率（IPCE）已达到10％以上。与传统设备相比，以较低的成本生产这些电池具有良好的前景。在这里，我们介绍了该领域的现状，讨论了包括异质结变体在内的染料敏化纳米晶体太阳能电池（DSC）的新概念，并分析了该技术未来发展的前景。

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