| 杨骁,李巍,许芳,汪天洋,刘东志,周雪琴.化学通报,2019,82(8):737-742. |
| 电荷分离型染料在固态染料敏化太阳能电池中的应用研究 |
| Applied research on charge separation dyes in Solid-State Dye Sensitized Solar Cells |
| 投稿时间：2019-04-10 修订日期：2019-05-05 |
| DOI： |
| 中文关键词: 固态染料敏化太阳能电池 电荷分离态 电荷复合 |
| 英文关键词:Solid-state dye sensitized solar cells, charge separation state, charge recombination |
| 基金项目:国家自然科学基金项目（21776207,21576195） |
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| 中文摘要: |
| 染料敏化太阳能电池中的染料起到吸收光能和传导光生电子的作用,而染料的电荷分离状态能有效的提高电子注入效率,抑制电荷复合,进而提高器件性能。本文以电荷分离型(CS型)染料为敏化剂,采用spiro-OMeTAD为空穴传输材料制备了全固态染料敏化太阳能电池,分析了TiO2光阳极膜厚的影响,当TiO2光阳极膜厚为1.2 μm时,器件性能最优；探讨了染料结构对器件性能的影响,其中染料MTPABT-Pyc的器件性能最好,其光电流和效率分别为7.38 mA/cm2和3.06%。相比于电荷转移型染料(CT型)MTPAcc,染料MTPABT-Pyc具有相近的捕光能力,但是其效率比MTPAcc (2.64%)提高了16%。这些结果表明,CS型染料的电荷分离态对电荷复合的抑制和空穴的传输具有很高的优越性。 |
| 英文摘要: |
| The dyes as the particularly important material component of the DSSC carry out two functions: absorbing light energy and initiating the electrical current. And the dyes with long-livedcharge-separated state can effectively improve electron injection efficiency, suppress chargerecombination, and thereby improve device performance. All-solid-state dye-sensitized solar cells were fabricated using the charge separation (CS) dyes as photosensitizer and spiro-OMeTAD as hole-transport material. The effect of TiO2 film thickness for ssDDSC was analyzed. When the TiO2 film thickness was 1.2 μm, the device performance was optimal. The influence of dye structure on device performance was also discussed. The ssDSSC based on MTPABT-Pyc has the best performance, with photocurrent of 7.38 mA/cm2 and efficiency of 3.06 %.The dye MTPABT-Pyc had similar light-harvesting ability compared to the charge-transfer dye (CT type) MTPAcc, but its efficiency is 16 % higher than that ofMTPAcc (2.64%). These results indicate that the charge-separated state of the CS-type dye has a high superiority for the suppression of charge recombination and the transport of holes. |
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