一种以蔗糖作为碳前驱体来制备染料敏化太阳能电池（DSSC）对电极的简单方法。
A simple route to making counter electrode for dye sensitized solar cells (DSSCs) using sucrose as carbon precursor.
作者信息
Kumar Rahul, More Venumadhav, Mohanty Shyama Prasad, Nemala Siva Sankar, Mallick Sudhanshu, Bhargava Parag
机构信息
Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, India.
Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology Bombay, Mumbai 400076, India.
出版信息
J Colloid Interface Sci. 2015 Dec 1;459:146-150. doi: 10.1016/j.jcis.2015.08.009. Epub 2015 Aug 4.
Dye sensitized solar cells (DSSCs) have attracted much attention in recent years due to low cost fabrication as compared to silicon-based and thin film solar cells. Though, platinum is an excellent catalytic material for use in preparation of counter electrodes (CEs) for DSSCs it is expensive. Alternatives to replacement of platinum (Pt) that have been examined are carbon materials, conductive polymers and hybrids. In this work, counter electrode for DSSCs was fabricated using carbon material obtained from graphitization of sucrose at high temperature. A slurry of the carbon produced from sucrose graphitization was made with polyvinylpyrrolidone (PVP) as a surfactant and a coating was obtained by doctor blading the slurry over the FTO glass substrate. The current density (Jsc) and open circuit voltage (V(OC)) of fabricated cell (area 0.25 cm(2)) was 10.28 mAc m(-2) and 0.76 V respectively. The efficiency of the cell was 4.33% which was just slightly lower than that obtained for similar cells using platinum based counter electrode.
与基于硅的太阳能电池和薄膜太阳能电池相比，染料敏化太阳能电池（DSSC）近年来因制造成本低而备受关注。然而，铂是用于制备DSSC对电极（CE）的优良催化材料，但价格昂贵。已研究的替代铂（Pt）的材料有碳材料、导电聚合物及其复合材料。在本工作中，使用高温下蔗糖石墨化得到的碳材料制备了DSSC的对电极。以聚乙烯吡咯烷酮（PVP）作为表面活性剂，制备了蔗糖石墨化产生的碳的浆料，并通过刮刀法将该浆料涂覆在FTO玻璃基板上获得涂层。制备的电池（面积为0.25 cm²）的电流密度（Jsc）和开路电压（V(OC)）分别为10.28 mA cm⁻²和0.76 V。该电池的效率为4.33%，仅略低于使用基于铂的对电极的类似电池的效率。
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