A novel carboxyethyltin functionalized sandwich-type germanotungstate: synthesis, crystal structure, photosensitivity, and application in dye-sensitized solar cells.
A novel carboxyethyltin functionalized sandwich-type germanotungstate: synthesis, crystal structure, photosensitivity, and application in dye-sensitized solar cells.
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DOI：
10.1021/am501192f
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发表时间：
2014-05
影响因子：
9.5
通讯作者：
Xiao-Jing Sang;Jian-Sheng Li;Lancui Zhang;Zan-Jiao Wang;Weilin Chen;Zai‐Ming Zhu;Z. Su;E. Wang-E.-Wa
中科院分区：
文献类型：
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作者：
Xiao-Jing Sang;Jian-Sheng Li;Lancui Zhang;Zan-Jiao Wang;Weilin Chen;Zai‐Ming Zhu;Z. Su;E. Wang-E.-Wa
在水溶液中设计合成了一种新型的开链羧乙基锡功能化的锗钨酸盐[C（NH 2）3]10[Mn 2 {Sn（CH 2）2COOH}2（B-α-GeW 9 O34）2]·8H 2 O（1），并首次将其应用于染料敏化太阳能电池（DSSC）。通过荧光光谱（FL）、表面光电压谱（SPV）、电化学方法和固体漫反射光谱对其光敏性进行了研究。结果表明：1的染料敏化太阳能电池具有敏化剂的基本特征，其效率为0.22%。令人高兴的是，当1被用来组装一个共敏化太阳能电池配置，通过制备1-掺杂的TiO 2电极和另外吸附N719染料，通过增加光谱吸收和加速电子传输，这是19.4%，高于单一的N719敏化，实现了显着提高的效率。这一结果开辟了一种新的方式来定位不同的染料在一个单一的二氧化钛薄膜共敏化。
A novel sandwich-type germanotungstate [C(NH2)3]10[Mn2{Sn(CH2)2COOH}2(B-α-GeW9O34)2]·8H2O (1) represents the first single crystalline polyoxometalate (POM) functionalized by open chain carboxyethyltin, which was designed and synthesized in aqueous solution and applied to a dye-sensitized solar cell (DSSC) for the first time. Its photosensitivity was explored through a fluorescence spectrum (FL), surface photovoltage spectrum (SPV), electrochemical method, and solid diffuse spectrum. 1 displays the primary features of sensitizers in DSSCs, and the efficiency of the solar cell is 0.22%. Delightedly, when 1 was employed to assemble a cosensitized solar cell configuration by preparing a 1-doped TiO2 electrode and additionally adsorbing N719 dyes, a considerably improved efficiency was achieved through increasing spectral absorption and accelerating electron transport, which is 19.4% higher than that of single N719 sensitization. This result opens up a new way to position different dyes on a single TiO2 film for cosensitization.