研究目的
To investigate the electrochemical, optical and photovoltaic behaviors of azobenzene and coumarin functionalized thiophene comprising copolymers for organic solar cell applications.
研究成果
The synthesized copolymers P1 and P2 exhibited multichromic behavior with neutral state orange colors and optical band gap values of 1.88 eV and 1.64 eV, respectively. The highest power conversion efficiency was obtained as 0.81% for P1 based device and 0.96% for P2 based device under optimum conditions. These results support the usage of these copolymers in organic solar cell applications.
研究不足
The study is limited to the preliminary results of organic solar cell applications. Further studies are required to increase the efficiency of the solar cells.
1：Experimental Design and Method Selection:
Stille copolymerization reaction was used to synthesize the copolymers P1 and P
2：Sample Selection and Data Sources:
The copolymers were synthesized and characterized using NMR, FTIR, elemental analysis, cyclic voltammetry (CV), and UV-Vis spectrophotometer.
3：List of Experimental Equipment and Materials:
Chemicals were purchased from Sigma-Aldrich Chemical Co. Ltd. Cyclic voltammetry studies were conducted via Gamry Reference 600 potentiostat/galvanostat. JASCO V-770 spectrophotometer integrated with potentiostat was used for optical and spectroelectrochemical studies.
4：Experimental Procedures and Operational Workflow:
The copolymers were dissolved in CHCl3 and spray-coated onto ITO-coated glass slides for electrochemical, spectroelectrochemical, and kinetic studies.
5：Data Analysis Methods:
The HOMO and LUMO values were determined via cyclic voltammetry. The optical band gaps were calculated using UV-VIS spectrophotometer.
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