Schematic of designing P-CNQDs/Gr for a self-antibiofouling dissolved oxygen sensor.

Major Contributions
 

1. The study systematically investigates how block copolymer architectures incorporating poly(ε-caprolactone) (PCL) modulate the interfacial interactions between the polymer dispersants and single-walled carbon nanotubes. By tailoring the structural design of the copolymers, the research reveals the critical role of PCL segments in balancing the trade-off between selective wrapping and steric stabilization.

2. The research demonstrates that the optimized PCL-based block copolymers significantly improve the sorting efficiency of single-walled carbon nanotubes. This architectural control allows for the high-purity isolation of semiconducting species (s-SWCNTs) by effectively suppressing the dispersion of metallic counterparts, thereby providing high-quality materials for electronic applications.

3. The work establishes that the introduction of PCL blocks provides robust steric hindrance, which prevents the re-aggregation of the sorted nanotubes. Consequently, the resulting s-SWCNT dispersions exhibit exceptional long-term colloidal stability, overcoming a major bottleneck in the processing and storage of carbon nanotube inks for solution-processable electronics.

主要貢獻
 

1. 本研究系統性地探討了含聚(ε-己內酯) (PCL) 的嵌段共聚物結構如何調節聚合物分散劑與單壁碳奈米管之間的界面交互作用。透過剪裁共聚物的結構設計，研究揭示了 PCL 鏈段在平衡選擇性包覆與立體穩定化之間的關鍵作用。

2. 研究證明了優化後的 PCL 基嵌段共聚物能顯著提升單壁碳奈米管的分選效率。這種結構上的控制能夠有效抑制金屬性碳奈米管的分散，從而實現半導體物種 (s-SWCNTs) 的高純度分離，為電子應用提供了高品質的材料。

3. 此工作確立了 PCL 嵌段的引入能提供強大的立體障礙，防止分選後的奈米管發生再團聚。因此，所得的 s-SWCNT 分散液展現出優異的長期膠體穩定性，克服了碳奈米管墨水在溶液製程電子元件的加工與儲存中的主要瓶頸。