6533b838fe1ef96bd12a4455
RESEARCH PRODUCT
Synthesis and photovoltaic performance of dihydrodibenzoazepine-based sensitizers with additional lateral anchor
Ying LiXu-feng ZangZafar IqbalZu-sheng HuangDai-bin KuangDerong CaoLingyun WangHerbert MeierYang-fan Xusubject
Absorption (pharmacology)Materials scienceProcess Chemistry and TechnologyGeneral Chemical EngineeringPhotovoltaic systemEnergy conversion efficiencyAnchoringMolar absorptivityPhotochemistrychemistry.chemical_compoundDye-sensitized solar cellchemistryMoietyAzepinedescription
Three novel metal-free organic dyes with dihydro-5H-dibenzo[b,f]azepine as a donor and cyanoacrylic acid as an anchoring unit were designed as an innovative linear skeleton of D-D-pi-A type of organic dyes. The conversion efficiency of the derived dye-sensitized solar cells is moderate. Among them, the dye with a hydroxy group as an additional anchoring moiety exhibited the highest UV-Vis absorption with a maximum molar extinction coefficient of 24,136 M-1 cm(-1) at lambda(max) = 458 nm and the best photovoltaic performance with an overall power conversion efficiency of 4.88%, while the dye with a carboxy group as an additional anchoring moiety exhibited the lowest conversion efficiency (4.52%). The results show that the dye loading on the film and photovoltaic performance of the dyes were influenced by the additional anchoring units. (C) 2013 Elsevier Ltd. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-12-01 | Dyes and Pigments |