This research is supported by an International Collaboration grant (Sunjin-2010-002) from the Ministry of Trade, Industry & Energy of Korea. We also acknowledge support from the Harvard MRSEC through the NSF (DMR-0820484). This work is performed in part at the Center for Nanoscale Systems (CNS) at Harvard University, which is supported by the National Science Foundation (ECS-0335765). We also thank Prof. Gi-Ra Yi from Sungkyunkwan University for helpful discussions.
Full-Spectrum Photonic Pigments with Non-iridescent Structural Colors through Colloidal Assembly†
Article first published online: 12 FEB 2014
© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 126, Issue 11, pages 2943–2947, March 10, 2014
How to Cite
Park, J.-G., Kim, S.-H., Magkiriadou, S., Choi, T. M., Kim, Y.-S. and Manoharan, V. N. (2014), Full-Spectrum Photonic Pigments with Non-iridescent Structural Colors through Colloidal Assembly. Angew. Chem., 126: 2943–2947. doi: 10.1002/ange.201309306
- Issue published online: 6 MAR 2014
- Article first published online: 12 FEB 2014
- Manuscript Revised: 9 DEC 2013
- Manuscript Received: 24 OCT 2013
- Ministry of Trade, Industry & Energy of Korea
- NSF. Grant Number: DMR-0820484
- National Science Foundation. Grant Number: ECS-0335765
- Isotrope Strukturen;
Structurally colored materials could potentially replace dyes and pigments in many applications, but it is challenging to fabricate structural colors that mimic the appearance of absorbing pigments. We demonstrate the microfluidic fabrication of “photonic pigments” consisting of microcapsules containing dense amorphous packings of core–shell colloidal particles. These microcapsules show non-iridescent structural colors that are independent of viewing angle, a critical requirement for applications such as displays or coatings. We show that the design of the microcapsules facilitates the suppression of incoherent and multiple scattering, enabling the fabrication of photonic pigments with colors spanning the visible spectrum. Our findings should provide new insights into the design and synthesis of materials with structural colors.