Covalent Organic Framework‑Anchored Carbon Nanotubes Enabling Ultra‑Thin Robust Polyimide Films for High‑Specific‑Power Flexible GaAs Solar Cells (IMAGE)
Caption
- A scalable solvothermal route is proposed for directly growing covalent organic framework (COF) shells on carboxylated multi-walled carbon nanotube (MWCNT), yielding MWCNT-COF hybrids with high thermal stability.
- Polyimide composite films demonstrate a tensile strength of 97.5 MPa, a modulus of 1.53 GPa, and a density of 0.73 g cm-3, resolving the strength–density dilemma.
- Flexible dual-junction and triple-junction GaAs solar cells achieve ultrahigh specific powers of 8998 and 7749 W kg-1, respectively, with minimal performance degradation after 2000 bending cycles at a 10 mm radius.
Credit
Bin Li, Zhejun Guo, Qin Wang, Maoshu Yin, Xianglei Shi, Lu Yao, Chongjing Lu, Yanpeng Zhang, Wenwei Xu, Liying Jiang, Lijie Sun*, Feng Shao*, Xuan Liu*, Nantao Hu*
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CC BY-NC-ND