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GETACHEW ALEMU,MINGKUI WANG,BINGYAN ZHANG,JUNPENG LI,XIAOBAO XU,JIN CUI,YAN SHEN 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2014 NANO Vol.9 No.5
The power conversion e±ciency of p-type dye-sensitized solar cells (DSSC) is determined by thekinetics of hole injection and dye-regeneration reaction at the dye/electrolyte interface. In thiswork, the photochemical regeneration kinetics of dye adsorbed on CuCrO 2 mesoporous ¯lm wasinvestigated by using scanning electrochemical microscopy with feedback mode. Organic P1 andC343 sensitizers in combination with iodide-based and thiolate-based electrolytes were selected tounderstand the e®ect of sensitizers and redox shuttles on dye-regeneration process. A fast re-generation kinetic rate constant was con¯rmed in thiolate-based sample compared with iodide-based electrolyte, indicating that the organic redox shuttle was an e±cient mediator to optimizethe performance of p-type DSSC.
Molecular Engineering of Zinc Phthalocyanines with Phosphinic Acid Anchoring Groups
Ló,pez‐,Duarte, Ismael,Wang, Mingkui,Humphry‐,Baker, Robin,Ince, Mine,Martí,nez‐,Dí,az, M. Victoria,Nazeeruddin, Mohammad K.,Torres, Tomá,s,Grä,tzel, Mich WILEY‐VCH Verlag 2012 Angewandte Chemie Vol.124 No.8
<P><B>Zwei Zinkphthalocyanin‐Photosensibilisatoren</B> mit verschiedenen Phosphinsäure‐Ankergruppen (siehe Schema) wurden synthetisiert. Solarzellen mit diesen Verbindungen verfügen über eine Photostromdichte von (7.6±0.2) mA cm<SUP>−2</SUP> bei geschlossenem Stromkreis, eine Spannung von (559±30) mV bei offenem Stromkreis und einen Füllfaktor von 0.76±0.03; dies entspricht einem Gesamtwirkungsgrad von 3.24 % unter 1 sun.</P>