SCLCPs are synthesized using “click chemistry”. The resulting polymers, P1 and P2, have good solubilities and molecular‐weight distributions. Their $\overline {M} _{{\rm w}} $ and polydispersities are in the ranges of 26.7–8.4 × 103 g · mol−1 and 1.99–1.29, respectively. DSC and POM studies reveal that both polymers exhibit liquid‐crystalline behavior. P1 and P2 are found to display blue emission. DSSCs are fabricated using P1 and P2 as matrices for electrolytes. The maximum PCE of the P1‐ and P2‐based polymer electrolytes is 4.11% (at 1 sun). This synthesis route has again proven to be a useful synthetic methodology for fabricating SCLCPs that are promising materials for device applications.magnified image

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A new series of phenothiazine-based polymeric electrolytes were developed to obtain a high power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). Phenothiazine-based click polymers were synthesized using Cu(I)-catalyzed click reaction methods. The resulting polymers were soluble in common organic solvents and had a reasonable molecular weight. The thermal properties, emission spectra, and energy band gap of synthesized click polymers were also investigated. The polymer electrolytes were composed of iodide and triiodide redox species embedded in phenothiazine-based click polymers or polyacrylonitrile (PAN) as a polymer matrix. DSSCs were fabricated with a configuration of SnO 2 :F/TiO 2 /N719 dye/polymer electrolyte/Pt devices using these click polymers or PAN as an electrolyte components and compared photovoltaic performance. The maximum PCE of the phenothiazine-based click polymers as polymer electrolytes for DSSCs was obtained 5.30% (at 1 sun). These enhanced click polymers are expected to find applications as an electrolyte component in DSSCs in the future.