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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2602.13117 |
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| _version_ | 1866908833758052352 |
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| author | Nayak, Binay P. Mallick, Zinnia Wang, Wenjie Kakkar, Prapti Zhou, Shan Zhang, Honghu Nykypanchuk, Dmytro Mallapragada, Surya K. Travesset, Alex Vaknin, David |
| author_facet | Nayak, Binay P. Mallick, Zinnia Wang, Wenjie Kakkar, Prapti Zhou, Shan Zhang, Honghu Nykypanchuk, Dmytro Mallapragada, Surya K. Travesset, Alex Vaknin, David |
| contents | A cornerstone of advanced materials design is establishing a framework for assembling nanoparticle superstructures with tailored symmetries. A longstanding challenge has been assembling diamond-like superstructures for photonic devices. Traditionally, such open superstructures require functionalized nanoparticles with directional or anisotropic interactions, reminiscent of valence bonding in a diamond. Here, we present a robust strategy for assembling valence-free nanoparticles into a broad array of cubic superstructures. By grafting nanoparticles with oppositely charged, end-functionalized water-soluble polymers of adjustable molecular weight, we gain control over electrostatic interactions and conformational constraints. This unified approach yields lattices analogous to rock salt, CsCl, zinc-blende, diamond, and the rare simple cubic phase, with tunable lattice constants. Theoretical models and simulations elucidate the underlying interactions, providing a framework for engineering valence-free nanoparticle superlattices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_13117 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Valence-free open nanoparticle superlattices Nayak, Binay P. Mallick, Zinnia Wang, Wenjie Kakkar, Prapti Zhou, Shan Zhang, Honghu Nykypanchuk, Dmytro Mallapragada, Surya K. Travesset, Alex Vaknin, David Materials Science A cornerstone of advanced materials design is establishing a framework for assembling nanoparticle superstructures with tailored symmetries. A longstanding challenge has been assembling diamond-like superstructures for photonic devices. Traditionally, such open superstructures require functionalized nanoparticles with directional or anisotropic interactions, reminiscent of valence bonding in a diamond. Here, we present a robust strategy for assembling valence-free nanoparticles into a broad array of cubic superstructures. By grafting nanoparticles with oppositely charged, end-functionalized water-soluble polymers of adjustable molecular weight, we gain control over electrostatic interactions and conformational constraints. This unified approach yields lattices analogous to rock salt, CsCl, zinc-blende, diamond, and the rare simple cubic phase, with tunable lattice constants. Theoretical models and simulations elucidate the underlying interactions, providing a framework for engineering valence-free nanoparticle superlattices. |
| title | Valence-free open nanoparticle superlattices |
| topic | Materials Science |
| url | https://arxiv.org/abs/2602.13117 |