研究目的
To investigate the stability of novel benzodithiophene type low band gap polymer solar cells and compare their performance with P3HT solar cells using Atomic Layer Deposition (ALD) encapsulation technique.
研究成果
The study demonstrates that ALD encapsulation significantly improves the stability of P-TQTBDT solar cells compared to conventional methods. P-TQTBDT solar cells show higher stability than P3HT solar cells, indicating the potential of novel benzodithiophene type copolymers in achieving high stability polymer solar cells.
研究不足
The study focuses on the stability and encapsulation techniques of polymer solar cells but does not extensively explore the optimization of photovoltaic parameters or the scalability of the ALD encapsulation process.
1：Experimental Design and Method Selection:
Synthesis of a novel benzodithiophene type copolymer and encapsulation of solar cells using conventional and ALD techniques. Characterization via NMR, GPC, and CV techniques.
2：Sample Selection and Data Sources:
P-TQTBDT and P3HT solar cells were fabricated and characterized under AM1.5 G solar simulator.
3：5 G solar simulator.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: ITO coated glass substrates, PEDOT:PSS, PC61BM, dichlorobenzene, ALD reactor (Savannah 200 from Cambridge Nanotech), TMA, H2O.
4：2O.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Fabrication of solar cells on ITO coated glass substrates, encapsulation with UV-epoxide and ALD techniques, stability tests under ISOSL1 conditions.
5：Data Analysis Methods:
Performance evaluation based on photovoltaic parameters (Voc, Jsc, FF, PCE), AFM for morphology study, IPCE measurements.
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