Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Improve the Photovoltage of Dithienopyrrole Dye-Sensitized Solar Cells via Attaching the Bulky Bis(octyloxy)biphenyl Moiety to the Conjugated π-Linker

Not Accessible

Your library or personal account may give you access

Abstract

We construct 2′,6′-bis(octyloxy)-biphenyl substituted dithieno[3,2-b:2′,3′-d]pyrrole segment and employ it as the π-linker of a high molar absorption coefficient organic push-pull dye. With respect to its congener possessing the hexyl substituted dithieno[3,2-b:2′,3′-d]pyrrole linker, the new dye can self-assemble on the surface of titania to afford a porous organic coating, which effectively slow down the kinetics of charge recombination of titania electrons, improving the cell photovoltage. In addition, the diminishments of charge recombination via modulating the microstructure of interfacial functional zone can also overcompensate the disadvantageous impact of reduced light-harvesting and evoke an enhanced photocurrent output, bringing forth an efficiency improvement from 7.5% to 9.3% at the 100 mW cm−2, simulated AM1.5 conditions.

© 2013 Optical Society of America

PDF Article
More Like This
Engineering of Push-Pull Thiophene Dyes to Enhance Light Absorption and Modulate Charge Recombination in Mesoscopic Solar Cells

Renzhi Li and Peng Wang
ASu3B.6 Advanced Optoelectronics for Energy and Environment (AOEE) 2013

Novel Functional Materials for Highly Efficient Dye-sensitized Solar Cells

Chi-Ming Lan, Wei-Kai Huang, Jia-Wei Shiu, Hui-Ping Wu, Yu-Cheng Chang, and Eric Wei-Guang Diau
ASu1A.2 Advanced Optoelectronics for Energy and Environment (AOEE) 2013

Plasmonic nanoparticles enhanced dye-sensitized solar cells

Fang Liu, Qi Xu, and Yidong Huang
AF1K.2 Asia Communications and Photonics Conference (ACPC) 2013

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved