Light modulation in Ag electrodeposition based electrochromic cell with localized surface plasmon resonance of Ag nano-electrodeposit (Conference Presentation)

Norihisa Kobayashi

doi:10.1117/12.2323402

18 September 2018 Light modulation in Ag electrodeposition based electrochromic cell with localized surface plasmon resonance of Ag nano-electrodeposit (Conference Presentation)

Norihisa Kobayashi

Author Affiliations +

Proceedings Volume 10738, Organic and Hybrid Sensors and Bioelectronics XI; 107380E (2018) https://doi.org/10.1117/12.2323402
Event: SPIE Organic Photonics + Electronics, 2018, San Diego, California, United States

Abstract

Electrochromism (EC) is defined as a reversible color change by electrochemical redox reaction and has several features such as color variation, memory property and so on. Multifunctional electrochromic materials which control multiple colors, various color density, and specular reflection are expected to be potential candidate for light-modulation device such as smart window and novel reflective display device such as e-paper. This paper focuses on novel EC system toward energy-saving technology and full color e-paper, based on electrochemical reaction. Electrodeposition is an attractive method in electrochromism to create several optical states (colors) because silver (Ag) nanoparticles exhibit various optical states based on their localized surface plasmon resonance (LSPR). LSPR bands of metal nanoparticles are affected by the size and shape. The control of LSPR band, therefore, must enable dramatic changes in color for the surface where nanoparticles are deposited. We successfully demonstrate the first LSPR-based multicolor EC device enabling reversible control of six optical states such as transparent, silver mirror, cyan, magenta, yellow and black, which is attractive for smart window as well as color e-paper application. We will discuss the mechanism of electrodeposition and a wide range of its applications.

Conference Presentation

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Norihisa Kobayashi "Light modulation in Ag electrodeposition based electrochromic cell with localized surface plasmon resonance of Ag nano-electrodeposit (Conference Presentation)", Proc. SPIE 10738, Organic and Hybrid Sensors and Bioelectronics XI, 107380E (18 September 2018); https://doi.org/10.1117/12.2323402

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KEYWORDS

Silver

Surface plasmons

Modulation

Nanoparticles

Control systems

Metals

Mirrors

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