申请人:Ricoh Company, Ltd.
公开号:EP3182197A1
公开(公告)日:2017-06-21
An electrochromic element is provided. The electrochromic element includes a first electrode (2), a second electrode (3), an electrolyte (5) disposed between the first electrode (2) and the second electrode (3), a first layer (4) overlying the first electrode (2), and a second layer (7) overlying the second electrode (3). The first layer (4) contains an oxidizable color-developing electrochromic compound. The second layer (7) contains a compound (6) having the following formula (1):
wherein each of R1 to R5 independently represents a hydrogen atom, a halogen atom, or a monovalent organic group, and at least one of R1 to R5 has a functional group directly or indirectly bindable to hydroxyl group.
提供了一种电致变色元件。电致变色元件包括第一电极 (2)、第二电极 (3)、位于第一电极 (2) 和第二电极 (3) 之间的电解质 (5)、覆盖在第一电极 (2) 上的第一层 (4) 以及覆盖在第二电极 (3) 上的第二层 (7)。第一层(4)含有可氧化的显色电致变色化合物。第二层(7)含有下式(1)的化合物(6):
其中 R1 至 R5 各自独立地代表氢原子、卤素原子或一价有机基团,且 R1 至 R5 中至少有一个具有可直接或间接与羟基结合的官能团。