Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 14, Issue 41, Pages 14190-14195Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cp41181d
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Funding
- National Science Council of Taiwan [NSC 98-2112-M-007-028-MY3, 101-3113-E-007-006]
- Ministry of Economic Affairs, Taiwan
- Low Carbon Energy Research Center, National Tsing-Hua University
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This study carefully examines carrier dynamics in highly efficient dye-sensitized solar cells (DSSCs) based on a series of recently developed dicarboxyterpyridine Ru(II) dyes (PRT-11-15). Comprehensive spectral response analyses, transient photovoltage and photocurrent measurements, and transient absorption techniques are exploited to investigate the effects of various functionalized terpyridines on carrier injection efficiency (eta(inj)), electron diffusion length (L) and dye-regeneration efficiency (eta(reg)). The resulting parameters are fully comprehended, which are then correlated with the origins of the device performance such as short circuit current density J(sc), open circuit voltage V-oc and hence the overall conversion efficiency eta in these Ru(II) based DSSCs.
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