Communication

A Color-Neutral, Gd Nanoparticle Switchable Mirror with Improved Optical Contrast and Response Time†

  1. I. Aruna1,
  2. B. R. Mehta,
  3. L. K. Malhotra1,
  4. S. M. Shivaprasad2

Article first published online: 29 JAN 2004

DOI: 10.1002/adma.200305810

Issue

Advanced Materials

Advanced Materials

Volume 16, Issue 2, pages 169–173, January, 2004

Additional Information

How to Cite

Aruna, I., Mehta, B. R., Malhotra, L. K. and Shivaprasad, S. M. (2004), A Color-Neutral, Gd Nanoparticle Switchable Mirror with Improved Optical Contrast and Response Time. Adv. Mater., 16: 169–173. doi: 10.1002/adma.200305810

Author Information

  1. 1

    Thin Film Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016, India

  2. 2

    Surface Physics Group, National Physical Laboratory, New Delhi 110 012, India

  1. †

    I. Aruna is grateful to the University Grants Commission, India, for providing the Junior Research Fellowship for carrying out this work.

Publication History

  1. Issue published online: 29 JAN 2004
  2. Article first published online: 29 JAN 2004
  3. Manuscript Accepted: 9 OCT 2003
  4. Manuscript Received: 7 AUG 2003

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Keywords:

  • Gadolinium;
  • Nanoparticles, gold;
  • Rare earth elements;
  • Switchable mirrors

An all-round improvement of the switchable mirror characteristics of any rare earth metal system can be achieved by utilizing two characteristics of nanoparticles: the size-dependent blue shift in the absorption edge and large surface area. Gd nanoparticles show better color neutrality in comparison with polycrystalline, alloy, and multilayer films, and also exhibit increased optical contrast and faster response time than polycrystalline films.

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