1228313-18-5Relevant academic research and scientific papers
Molecular engineering of panchromatic unsymmetrical squaraines for dye-sensitized solar cell applications
Choi, Hyunbong,Kim, Jeum-Jong,Song, Kihyung,Ko, Jaejung,Nazeeruddin, Md. K.,Graetzel, Michael
, p. 3280 - 3286 (2010)
Three unsymmetrical squaraine dyes JK-64, JK-65, and JK-64Hx, containing a bulky spirobifluorene or hexyloxyphenyl unit are designed and synthesized. These sensitizers, when anchored onto a TiO2 surface, exhibit decreased aggregation as well as enhanced unidirectional flow of electrons. Under standard global AM 1.5 solar conditions, an optimized JK-64Hx sensitized cell gave a short-circuit photocurrent density (Jsc) of 12.82 mA cm-2, an open-circuit voltage (Voc) of 0.54 V and a fill factor (ff) of 0.75, corresponding to an overall conversion efficiency (η) of 5.20%.
