Structural Color Manipulation Using Tunable Photonic Crystals with Enhanced Switching Reliability

The tuning stability of an electrically tunable photonic crystal composed of long-range ordered crystalline colloidal arrays is significantly improved by modifying an ITO electrode with ion-exchange resins. The thin layer of over-coating on the ITO surface increases the number of cycles of stable color-tuning switching from red to green to over 800 times, which is the best result ever reported for a tunable photo­nic crystal whose stop-band position can be manipulated more than 100 nm. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.