Porphyrin sensitizers with modified indoline donors for dye-sensitized solar cells†,Journal of Materials Chemistry C

当前位置： X-MOL 学术 › J. Mater. Chem. C › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Porphyrin sensitizers with modified indoline donors for dye-sensitized solar cells†
Journal of Materials Chemistry C ( IF 5.7 ) Pub Date : 2018-03-09 00:00:00 , DOI: 10.1039/c8tc00610e
Heli Song _{1,

2,

3,

4,

5} , Jing Zhang _{6,

7,

8,

9} , Jiamin Jin _{1,

2,

3,

4,

5} , Haifeng Wang _{1,

2,

3,

4,

5} , Yongshu Xie _{1,

2,

3,

4,

5}

Affiliation

As a strong electron donor, indoline has been used in developing organic sensitizers for fabricating efficient dye-sensitized solar cells. Herein we report porphyrin dyes based on modified indoline donors. Firstly, XW29 and XW31 featured with a methylphenyl-substituted indoline and a bulkier dialkylfluorene-substituted indoline, respectively, are synthesized. XW31 exhibits a J_sc of 22.06 mA cm⁻² as compared with that of 21.26 mA cm⁻² for XW29. Consequently, XW31 achieves a higher power conversion efficiency of 10.46% than that of 10.14% for XW29. On this basis, to further broaden the spectral response, a benzothiadiazole (BTD) unit is incorporated as the auxiliary electron acceptor to obtain XW30 and XW32, respectively. The IPCE spectra are thus successfully extended to 850 nm. However, due to possibly aggravated dye aggregation, charge recombination and less effective dye regeneration induced by the BTD unit, moderate efficiencies of ca. 8.6% are obtained. Through coadsorption, elevated efficiencies of ∼9.9% are achieved for XW30 and XW32. These results provide further insights into developing efficient porphyrin dyes by combining the dialkylfluorene moiety with the indoline donor.

中文翻译：

带有修饰的二氢吲哚供体的卟啉敏化剂，用于染料敏化太阳能电池†

作为强电子给体，二氢吲哚已用于开发有机敏化剂，以制造有效的染料敏化太阳能电池。在这里，我们报告基于修饰的吲哚供体的卟啉染料。首先，合成分别具有甲基苯基取代的二氢吲哚和较大的二烷基芴取代的二氢吲哚的XW29和XW31。XW31呈现Ĵ _SC的22.06毫安厘米^-2作为与的21.26毫安厘米相比^-2为XW29。因此，XW31的功率转换效率比XW29的10.14％更高。。在此基础上，为了进一步拓宽光谱响应，并入了苯并噻二唑（BTD）单元作为辅助电子受体，分别获得XW30和XW32。IPCE光谱因此成功扩展到850 nm。然而，由于可能加剧的染料聚集，电荷重组以及由BTD单元诱导的较不有效的染料再生，Ca的效率中等。获得8.6％。通过共吸附，XW30和XW32的效率提高到9.9％左右。这些结果通过将二烷基芴部分与二氢吲哚供体结合，为开发有效的卟啉染料提供了进一步的见识。

更新日期：2018-03-09

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11