کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1232629 | 1495282 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Theoretical study of carbazole–triphenylamine-based dyes for dye-sensitized solar cells Theoretical study of carbazole–triphenylamine-based dyes for dye-sensitized solar cells](/preview/png/1232629.png)
Three carbazole–triphenylamine-based dyes (D1, D2, D3) are designed. The geometries, electronic structures, and electronic absorption spectra of these dyes are studied by DFT and TD-DFT. The calculated geometries indicate that these dyes are all noncoplanar, which can help to inhibit the close intermolecular π–π aggregation effectively. The LUMO and HOMO energy levels of these dyes can be ensuring positive effect on the process of electron injection and dye regeneration. The trend of the calculated HOMO–LUMO gaps nicely compares with the spectral data. The calculated results of these dyes demonstrate that these dyes can be used as potential sensitizers for TiO2 nanocrystalline solar cells.
Figure optionsDownload as PowerPoint slideHighlights
► Carbazole–triphenylamineb-ased dyes were designed and studied by DFT and TD-DFT.
► The calculated geometries indicate that these dyes are all noncoplanar.
► The trend of the calculated HOMO–LUMO gaps nicely compares with the spectral data.
► These dyes can be used as potential sensitizers for dye-sensitized solar cells.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 86, February 2012, Pages 387–391