研究目的
To simultaneously improve power conversion efficiency (PCE) and mechanical stability of ultra?exible organic solar cells by using a fullerene/non-fullerene mixed acceptor.
研究成果
The study demonstrates a 3-mm-thick ultra?exible ternary OSC based on a fullerene/non-fullerene mixed acceptor combining a high PCE of 13% with excellent mechanical stability under both compression and bending. This represents a significant step forward toward the application of ultra?exible solar cells as a power source for next-generation wearable electronics.
研究不足
The study focuses on ultra?exible organic solar cells with a specific thickness and material composition. The mechanical tests are limited to bending and compression-stretching cycles.
1：Experimental Design and Method Selection:
The study employs a mixed fullerene/non-fullerene acceptor strategy to enhance charge transport, improve exciton separation, and optimize blend morphology.
2：Sample Selection and Data Sources:
Ultra?exible organic solar cells were fabricated based on the device architecture of parylene/Su-8/ITO/ZnO/active layer/MoO3/Ag.
3：List of Experimental Equipment and Materials:
Materials include Polymer PBDTTT-OFT, IEICO-4F, and PC71BM. Equipment includes a solar simulator, Keithley 2400 source meter, and atomic force microscopy (AFM).
4：Experimental Procedures and Operational Workflow:
Devices were fabricated on supporting glass substrates, encapsulated, and delaminated for testing. Mechanical stability was tested under bending and compression-stretching cycles.
5：Data Analysis Methods:
Performance was evaluated using current density-voltage (J-V) curves, external quantum efficiency (EQE) spectra, and transient photocurrent (TPC) analysis.
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