Tuning Light Emission towards White Light from a Naphthalenediimide-Based Entangled Metal-Organic Framework by Mixing Aromatic Guest Molecules

Polymers

卷:10

Iñigo López-Arbeloa¹  Rebeca Sola-Llano¹  Virginia Martínez-Martínez¹  Yohei Takashima²  Shuhei Furukawa³ 

[1] Departamento de Química Física, Universidad del País Vasco, UPV/EHU, Apartado 644, 48080 Bilbao, Spain;

[2] Department of Nanobiochemistry, Frontiers of Innovative Research in Science and Technology (FIRST), Konan University, 7-1-20 Minatojimaminamimachi, Chuo-ku, Kobe 650-0047, Japan;

[3] Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida, Kyoto 606-8501, Japan;

关键词: entangled MOF (metal organic framework);    aryl guests;    charge transfer;    white light emission;    CIE (Comission Internationale de l´Éclairage) coordinates;    UV illumination;    white light emission;   

DOI  :  10.3390/polym10020188

来源: DOAJ

【 摘 要 】

Taking advantage of the outstanding properties of a naphthalenediimide-based entangled porous coordination polymer, a simple strategy for the achievement of white light emission is herein presented. The dynamic structural transformation of the [Zn2(bdc)2(dpNDI)]n metal-organic framework enhances the interactions with aryl-guests giving rise to different luminescence colors upon UV (ultraviolet) illumination. Thus, through the rational selection of those small aromatic guest molecules with different electron donor substituents at the appropriate proportion, the emission color was tuned by mixture ratio of guest molecules and even white light emission was achieved. Furthermore, domains in large crystals with a complementary response to linearly polarized light were noticed.

【 授权许可】

Unknown