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Metal Selenides as Efficient Counter Electrodes for Dye-Sensitized Solar Cells
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-03-10 00:00:00 , DOI: 10.1021/acs.accounts.6b00625 Zhitong Jin 1 , Meirong Zhang 1 , Min Wang 1 , Chuanqi Feng 1 , Zhong-Sheng Wang 1
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-03-10 00:00:00 , DOI: 10.1021/acs.accounts.6b00625 Zhitong Jin 1 , Meirong Zhang 1 , Min Wang 1 , Chuanqi Feng 1 , Zhong-Sheng Wang 1
Affiliation
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Solar energy is the most abundant renewable energy available to the earth and can meet the energy needs of humankind, but efficient conversion of solar energy to electricity is an urgent issue of scientific research. As the third-generation photovoltaic technology, dye-sensitized solar cells (DSSCs) have gained great attention since the landmark efficiency of ∼7% reported by O’Regan and Grätzel. The most attractive features of DSSCs include low cost, simple manufacturing processes, medium-purity materials, and theoretically high power conversion efficiencies. As one of the key materials in DSSCs, the counter electrode (CE) plays a crucial role in completing the electric circuit by catalyzing the reduction of the oxidized state to the reduced state for a redox couple (e.g., I3–/I–) in the electrolyte at the CE–electrolyte interface. To lower the cost caused by the typically used Pt CE, which restricts the large-scale application because of its low reserves and high price, great effort has been made to develop new CE materials alternative to Pt. A lot of Pt-free electrocatalysts, such as carbon materials, inorganic compounds, conductive polymers, and their composites with good electrocatalytic activity, have been applied as CEs in DSSCs in the past years.
中文翻译：
金属硒化物作为染料敏化太阳能电池的高效对电极
太阳能是地球上可利用的最丰富的可再生能源，可以满足人类的能源需求，但是将太阳能有效地转化为电能是科学研究的紧迫问题。自第三代光伏技术以来，染料敏化太阳能电池（DSSC）受到了广泛关注，因为O'Regan和Grätzel报道了约7％的里程碑式效率。DSSC的最吸引人的特点包括低成本，简单的制造工艺，中等纯度的材料以及理论上高的功率转换效率。作为DSSC中的关键材料之一，对电极（CE）通过催化氧化还原对的氧化态还原为还原态（例如I 3 – / I –）在CE-电解质界面处的电解质中。为了降低由通常使用的Pt CE引起的成本，由于其低储量和高价格而限制了其大规模应用，因此人们已经做出了巨大的努力来开发替代Pt的新型CE材料。近年来，许多无铂电催化剂，例如碳材料，无机化合物，导电聚合物及其具有良好电催化活性的复合材料，已被用作DSSC中的CE。
更新日期：2017-03-10
中文翻译：
金属硒化物作为染料敏化太阳能电池的高效对电极
太阳能是地球上可利用的最丰富的可再生能源，可以满足人类的能源需求，但是将太阳能有效地转化为电能是科学研究的紧迫问题。自第三代光伏技术以来，染料敏化太阳能电池（DSSC）受到了广泛关注，因为O'Regan和Grätzel报道了约7％的里程碑式效率。DSSC的最吸引人的特点包括低成本，简单的制造工艺，中等纯度的材料以及理论上高的功率转换效率。作为DSSC中的关键材料之一，对电极（CE）通过催化氧化还原对的氧化态还原为还原态（例如I 3 – / I –）在CE-电解质界面处的电解质中。为了降低由通常使用的Pt CE引起的成本，由于其低储量和高价格而限制了其大规模应用，因此人们已经做出了巨大的努力来开发替代Pt的新型CE材料。近年来，许多无铂电催化剂，例如碳材料，无机化合物，导电聚合物及其具有良好电催化活性的复合材料，已被用作DSSC中的CE。
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