Low-Temperature Nanocrystal Unification through Rotations and Relaxations Probed by in Situ Transmission Electron Microscopy
Through the mechanism of “oriented attachment”, small nanocrystals can fuse into a wide variety of one- and two-dimensional nanostructures. This fusion phenomenon is investigated in detail by low-temperature annealing of a two-dimensional array of 10 nm-sized PbSe nanocrystals, in situ in the transm...
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| Veröffentlicht in: | Nano letters 2008-11, Vol.8 (11), p.3959-3963 |
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| container_end_page | 3963 |
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| container_issue | 11 |
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| container_title | Nano letters |
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| creator | van Huis, Marijn A Kunneman, Lucas T Overgaag, Karin Xu, Qiang Pandraud, Gregory Zandbergen, Henny W Vanmaekelbergh, Daniël |
| description | Through the mechanism of “oriented attachment”, small nanocrystals can fuse into a wide variety of one- and two-dimensional nanostructures. This fusion phenomenon is investigated in detail by low-temperature annealing of a two-dimensional array of 10 nm-sized PbSe nanocrystals, in situ in the transmission electron microscope. We have revealed a complex chain of processes; after coalescence, the connected nanocrystals undergo consecutive rotations in three-dimensional space, followed by drastic interfacial relaxations whereby full fusion is obtained. |
| doi_str_mv | 10.1021/nl8024467 |
| format | Article |
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This fusion phenomenon is investigated in detail by low-temperature annealing of a two-dimensional array of 10 nm-sized PbSe nanocrystals, in situ in the transmission electron microscope. 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thin films and whiskers (structure and nonelectronic properties)</topic><topic>Temperature</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>van Huis, Marijn A</creatorcontrib><creatorcontrib>Kunneman, Lucas T</creatorcontrib><creatorcontrib>Overgaag, Karin</creatorcontrib><creatorcontrib>Xu, Qiang</creatorcontrib><creatorcontrib>Pandraud, Gregory</creatorcontrib><creatorcontrib>Zandbergen, Henny W</creatorcontrib><creatorcontrib>Vanmaekelbergh, Daniël</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Nano letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>van Huis, Marijn A</au><au>Kunneman, Lucas T</au><au>Overgaag, Karin</au><au>Xu, Qiang</au><au>Pandraud, Gregory</au><au>Zandbergen, Henny W</au><au>Vanmaekelbergh, Daniël</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Low-Temperature Nanocrystal Unification through Rotations and Relaxations Probed by in Situ Transmission Electron Microscopy</atitle><jtitle>Nano letters</jtitle><addtitle>Nano Lett</addtitle><date>2008-11-01</date><risdate>2008</risdate><volume>8</volume><issue>11</issue><spage>3959</spage><epage>3963</epage><pages>3959-3963</pages><issn>1530-6984</issn><eissn>1530-6992</eissn><abstract>Through the mechanism of “oriented attachment”, small nanocrystals can fuse into a wide variety of one- and two-dimensional nanostructures. 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| subjects | Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties Materials science Microscopy, Electron, Transmission - methods Nanocrystalline materials Nanoparticles - ultrastructure Nanoscale materials and structures: fabrication and characterization Physics Quantum Dots Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Temperature |
| title | Low-Temperature Nanocrystal Unification through Rotations and Relaxations Probed by in Situ Transmission Electron Microscopy |
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