Defects in Self Assembled Colloidal Crystals
Colloidal self assembly is an efficient method for making 3-D ordered nanostructures suitable for materials such as photonic crystals and macroscopic solids for catalysis and sensor applications. Colloidal crystals grown by convective methods exhibit defects on two different scales. Macro defects s...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
2004
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/7361 |
| _version_ | 1826200616013135872 |
|---|---|
| author | Koh, Yaw Koon Teh, L. K. Wong, Chee Cheong |
| author_facet | Koh, Yaw Koon Teh, L. K. Wong, Chee Cheong |
| author_sort | Koh, Yaw Koon |
| collection | MIT |
| description | Colloidal self assembly is an efficient method for making 3-D ordered nanostructures suitable for materials such as photonic crystals and macroscopic solids for catalysis and sensor applications. Colloidal crystals grown by convective methods exhibit defects on two different scales. Macro defects such as cracks and void bands originate from the dynamics of meniscus motion during colloidal crystal growth while micro defects like vacancies, dislocation and stacking faults are indigenous to the colloidal crystalline structure. This paper analyses the crystallography and energetics of the microscopic defects from the point of view of classical thermodynamics and discusses the strategy for the control of the macroscopic defects through optimization of the liquid-vapor interface. |
| first_indexed | 2024-09-23T11:39:12Z |
| format | Article |
| id | mit-1721.1/7361 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:39:12Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | mit-1721.1/73612019-04-12T08:39:50Z Defects in Self Assembled Colloidal Crystals Koh, Yaw Koon Teh, L. K. Wong, Chee Cheong Colloidal self assembly macroporous solids photonic crystal defects Colloidal self assembly is an efficient method for making 3-D ordered nanostructures suitable for materials such as photonic crystals and macroscopic solids for catalysis and sensor applications. Colloidal crystals grown by convective methods exhibit defects on two different scales. Macro defects such as cracks and void bands originate from the dynamics of meniscus motion during colloidal crystal growth while micro defects like vacancies, dislocation and stacking faults are indigenous to the colloidal crystalline structure. This paper analyses the crystallography and energetics of the microscopic defects from the point of view of classical thermodynamics and discusses the strategy for the control of the macroscopic defects through optimization of the liquid-vapor interface. Singapore-MIT Alliance (SMA) 2004-12-09T23:38:57Z 2004-12-09T23:38:57Z 2005-01 Article http://hdl.handle.net/1721.1/7361 en Advanced Materials for Micro- and Nano-Systems (AMMNS); 483498 bytes application/pdf application/pdf |
| spellingShingle | Colloidal self assembly macroporous solids photonic crystal defects Koh, Yaw Koon Teh, L. K. Wong, Chee Cheong Defects in Self Assembled Colloidal Crystals |
| title | Defects in Self Assembled Colloidal Crystals |
| title_full | Defects in Self Assembled Colloidal Crystals |
| title_fullStr | Defects in Self Assembled Colloidal Crystals |
| title_full_unstemmed | Defects in Self Assembled Colloidal Crystals |
| title_short | Defects in Self Assembled Colloidal Crystals |
| title_sort | defects in self assembled colloidal crystals |
| topic | Colloidal self assembly macroporous solids photonic crystal defects |
| url | http://hdl.handle.net/1721.1/7361 |
| work_keys_str_mv | AT kohyawkoon defectsinselfassembledcolloidalcrystals AT tehlk defectsinselfassembledcolloidalcrystals AT wongcheecheong defectsinselfassembledcolloidalcrystals |