In this work, a series of novel polymer gel electrolytes with 3D network as ion channels were extensively investigated. Four type polyesters, which are poly (glutaric acid pentaerythritol ester) (PGAPE), poly (adipic acid pentaerythritol ester) (PAAPE), poly (suberic acid pentaerythritol ester) (PSAPE) and poly (pentanedioic acid pentaerythritol ester) (PPAPE), were successfully developed for quasi-solid-state dye-sensitized solar cells (DSCs) with a maximum PCE of 5.32% under AM 1.5 illumination. Photoelectrochemical measurements of the DSCs were conducted by using electrochemical workstation. The present findings indicate that the 3D network structure of polyesters can facilitate the ionic transport and improve the PCE of the DSCs.

Highly Oriented TiO2Nanotube (NT) Arrays Were Fabricated by Anodizing Ti Foils. the Morphology of the NT Arrays Was Characterized by Scanning Electron Microscope. by Adjusting the Anodization Time, the Lengths and Diameters of TiO2NT Arrays Changed from 6.7 to 19.5 μm, and 90 to 110 Nm, Respectively. as Confirmed by X-Ray Diffraction and Raman Spectra, the as-Anodized TiO2NTs Were Amorphous but Transformed into Anatase Phase after Annealing at 450°C for 3 H. Reflectance Spectrum of TiO2NT Arrays Showed that NT Layer of Longer Length Lowered the Reflectance in the Visible Spectrum because of Light Trapping Effects of NTs, Thus Enhancing Light Harvesting of NTs. Dye-Sensitized Solar Cells Were Fabricated Using TiO2NT Arrays with Different Tube-Lengths. Analysis of Photocurrent Density-Voltage (J-V) Characteristics Showed that Higher Photoconversion Efficiencies Were Achieved with Longer NT Lengths.