Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 16, Issue 4, Pages 1193-1201Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200902197
Keywords
dyes/pigments; sensitizers; solar cells; solid-state electrolytes; thienothiopenes
Categories
Funding
- Ministry of Science and Technology [R0A-2005-000-10034-0]
- WCU (Ministry of Education and Science) [R31-2008-000-10035-0]
- ERC (Korean Government (MEST) [R11-2009-088-02001-0]
Ask authors/readers for more resources
We have designed and synthesized highly efficient organic sensitizers with a planar thienothiophene-vinylene-thienothiophene linker. Under standard global AM 1.5 solar conditions, the JK-113-sensitized cell gave a short circuit photocurrent density (J(sc)) of 17.61 mAcm(-2), an open-circuit voltage (V-oc) of 0.71 V, and a fill factor (FF) of 72%, corresponding to an overall conversion efficiency (eta) of 9.1%. The incident monochromatic photo-to-current conversion efficiency (IPCE) of JK-113 exceeds 80% over the spectral region from 400 to 640 nm, reaching its maximum of 93% at 475 nm. The band tails off toward 770 nm, contributing to the broad spectral light harvesting. Solar-cell devices based oil the sensitizer JK-113 in conjunction with a volatile electrolyte and a solvent-free ionic liquid electrolyte gave high conversion efficiencies of 9.1% and 7.9%, respectively. The JK-113-based solar cell fabricated using a solvent-free ionic liquid electrolyte showed excellent stability under light soaking at 60 degrees C for 1000 h.
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