TY - JOUR
T1 - In Situ Fabrication of Flexible, Thermally Stable, Large-Area, Strongly Luminescent Copper Nanocluster/Polymer Composite Films
AU - Wang, Zhenguang
AU - Xiong, Yuan
AU - Kershaw, Stephen V.
AU - Chen, Bingkun
AU - Yang, Xuming
AU - Goswami, Nirmal
AU - Lai, Wing Fu
AU - Xie, Jianping
AU - Rogach, Andrey L.
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/12/12
Y1 - 2017/12/12
N2 - Composite polymer films incorporating luminescent copper nanoclusters are conveniently fabricated by solution processing of a precursor mixture of polyvinylpyrrolidone, poly(vinyl alcohol), a Cu2+ salt, and glutathione in water. The formation of Cu nanoclusters takes place through chemical reactions of the precursors in a hydrogel network, whose dehydration during the subsequent aging process leads to aggregation-induced emission enhancement. Large-area (25 cm × 32 cm), flexible, transparent, thermally stable, bright-orange-emitting films are realized, with the photoluminescence quantum yield reaching 30%. The emission of the films is attributed to a phosphorescence mechanism, taking place through ligand-to-metal charge transfer followed by a radiative relaxation over a triplet state. Cu-nanocluster-based composite films are employed as a light-emitting layer for down-conversion orange light-emitting diodes.
AB - Composite polymer films incorporating luminescent copper nanoclusters are conveniently fabricated by solution processing of a precursor mixture of polyvinylpyrrolidone, poly(vinyl alcohol), a Cu2+ salt, and glutathione in water. The formation of Cu nanoclusters takes place through chemical reactions of the precursors in a hydrogel network, whose dehydration during the subsequent aging process leads to aggregation-induced emission enhancement. Large-area (25 cm × 32 cm), flexible, transparent, thermally stable, bright-orange-emitting films are realized, with the photoluminescence quantum yield reaching 30%. The emission of the films is attributed to a phosphorescence mechanism, taking place through ligand-to-metal charge transfer followed by a radiative relaxation over a triplet state. Cu-nanocluster-based composite films are employed as a light-emitting layer for down-conversion orange light-emitting diodes.
UR - https://www.scopus.com/pages/publications/85038210232
U2 - 10.1021/acs.chemmater.7b04239
DO - 10.1021/acs.chemmater.7b04239
M3 - Article
AN - SCOPUS:85038210232
SN - 0897-4756
VL - 29
SP - 10206
EP - 10211
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 23
ER -