Zinc phthalocyanine (ZnPc) based dye-sensitized solar cells (DSSCs) that exhibit light absorption in the near IR and excellent chemical stability show great potential for efficient light harvesting and light to electrical energy conversion. However, they have exhibited poor device efficiencies (< 1%) for a long time . Only recently efficiencies up to ∼5% have been realized [2,3]. An important tool in the development towards higher efficiencies involves replacing a symmetric phthalocyanine by an asymmetric equivalent  with one electron pulling group (anchoring onto the TiO2) and three electron pushing groups (Fig. 1(a)). This clearly suggests that such an asymmetrical push-pull structure supports light-induced forward electron transfer (from the ZnPc core into the TiO2) and prevents back electron transfer. However, ultrafast photodynamics studies have not been reported so far.
|Publication status||Published - 2013|
|Event||2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany|
Duration: 12 May 2013 → 16 May 2013
|Conference||2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013|
|Abbreviated title||CLEO/Europe-IQEC 2013|
|Period||12/05/13 → 16/05/13|