An efficient organic-dye-sensitized solar cell with in situ polymerized poly(3,4-ethylenedioxythiophene) as a hole-transporting material

<p>In this Communication, we report an indoline D149 dye-sensitized solar cell with in situ polymerized PEDOT prepared in a specially designed thin-layer electrolytic cell toserve as the polymer HTM. These devices give an average light-to-electrical efficiency of 6.1% under full sun illumination (AM1.5, 100 mW cm2), which represents a remarkable improvement for polymer-HTM-based DSSCs. A similar device with Z907as the sensitizer was also fabricated for comparison. Thephotoelectrical properties of both devices were studied, and thephotoelectron recombination and polymer penetration in eachdevice are discussed.</p>