| abstract |
PROBLEM TO BE SOLVED: To provide a dimming composition, an optical element, and a dimming method which are bright, excellent in pleochroicity and high in contrast. SOLUTION: A dimming composition comprising metal nanoparticles exhibiting a color corresponding to an aggregation state, and a reversible change material that contains the metal nanoparticles and reversibly changes the aggregation state of the metal nanoparticles by external stimulation. Including and configuring. [Selection] Figure 1 |