Journal
NEW JOURNAL OF CHEMISTRY
Volume 45, Issue 17, Pages 7542-7554Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0nj06256a
Keywords
-
Categories
Funding
- Thailand Research Fund [MRG6180005]
- Vidyasirimedhi Institute of Science and Technology
- Center of Excellence for Innovation in Chemistry (PERCH-CIC)
- Ministry of Higher Education, Science, Research and Innovation (MHESI)
- Faculty of Science, Mahidol University
Ask authors/readers for more resources
Two new metal-free organic dyes with di-acceptors were designed based on the indolo[3,2-b]indole donor backbone. The introduction of extra electron donors improved the interaction between the dyes and TiO2 surface, enhancing light-harvesting efficiency. Dye 2-based cells showed enhanced overall conversion efficiency of 7.86% under standard conditions.
Two new di-acceptors metal-free organic dyes based on indolo[3,2-b]indole donor backbone with extra electron donors were designed, synthesized, and applied for dye-sensitized solar cells (DSSCs). In this study, the effect of the additional donors was investigated by the replacement of the typical N-alkyl side chain using methoxyphenyl (dye 1) and hexyloxyphenyl (dye 2) as secondary donor groups. Molecular dyes-based di-anchoring models enhanced the significant interaction between sensitizing dyes and the TiO2 surface as well as yielded better light-harvesting efficiency, compared to the familiar core indolo-indole donor. Under global standard condition 1.5 AM, dye 2-based cells show an enhanced overall conversion efficiency of 7.86% while that of the standard commercial N719-based cells is 8.08%. Therefore, the double anchor indolo[3,2-b]indole with additional donors is a promising candidate for efficient DSSCs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available