Details

Autor(en) / Beteiligte

• Koo, Jahyeon
• Hyeong, Jaeseok
• Jang, Junhwa
• Wi, Youngjae
• Ko, Hyeyoon
• Rim, Minwoo
• Lim, Seok‐In
• Na, Seok‐In
• Choi, Yu‐Jin
• Jeong, Kwang‐Un

Titel

Photochemically and Thermally Programmed Optical Multi‐States from a Single Diacetylene‐Functionalized Cyanostilbene Luminogen

Ist Teil von

• Advanced science, 2024-03, Vol.11 (11), p.e2307791-n/a

Ort / Verlag

Germany: John Wiley and Sons Inc

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Wiley Online Library Journals Frontfile Complete

Beschreibungen/Notizen

• To develop advanced optical systems, many scientists have endeavored to create smart optical materials which can tune their photophysical properties by changing molecular states. However, optical multi‐states are obtained usually by mixing many dyes or stacking multi‐layered structures. Here, multiple molecular states are tried to be generated with a single dye. In order to achieve the goal, a diacetylene‐functionalized cyanostilbene luminogen (DACSM) is newly synthesized by covalently connecting diacetylene and cyanostilbene molecular functions. Photochemical reaction of cyanostilbene and topochemical polymerization of diacetylene can change the molecular state of DACSM. By thermal stimulations and the photochemical reaction, the conformation of polymerized DACSM is further tuned. The synergetic molecular cooperation of cyanostilbene and diacetylene generates multiple molecular states of DACSM. Utilizing the optical multi‐states achieved from the newly developed DACSM, switchable optical patterns and smart secret codes are successfully demonstrated. A newly synthesized diacetylene‐functionalized cyanostilbene luminogen (DACSM) exhibits molecular and optical multi‐states due to synergetic molecular cooperation of cyanostilbene and diacetylene functions. By controlling the molecular states with two wavelengths of light and heat, advanced optical applications are successfully demonstrated, such as switchable optical patterns and smart secret codes.