Red, green, and blue radio-luminescent polymer dots doped with heteroleptic tris-cyclometalated iridium complexes

Zouyue Liu; Hieu Thi Minh Nguyen; Daiki Asanuma; Sachiko Tojo; Minoru Yamaji; Kiyohiko Kawai; Guillem Pratx; Mamoru Fujitsuka; Yasuko Osakada

doi:10.1039/d3ra01216f

Red, green, and blue radio-luminescent polymer dots doped with heteroleptic tris-cyclometalated iridium complexes

RSC Adv. 2023 May 17;13(22):15126-15131. doi: 10.1039/d3ra01216f. eCollection 2023 May 15.

Authors

Zouyue Liu¹, Hieu Thi Minh Nguyen², Daiki Asanuma¹, Sachiko Tojo¹, Minoru Yamaji³, Kiyohiko Kawai^{1

4}, Guillem Pratx², Mamoru Fujitsuka^{1

5}, Yasuko Osakada^{1

5

6}

Affiliations

¹ SANKEN (The Institute of Scientific and Industrial Research), Osaka University Mihogaoka 8-1, Ibaraki Osaka 567-0047 Japan yosakada@sanken.osaka-u.ac.jp fuji@sanken.osaka-u.ac.jp.
² Department of Radiation Oncology and Medical Physics, Stanford University 300 Pasteur Dr. Stanford CA 94305 USA pratx@stanford.edu.
³ Division of Molecular Science, Graduate School of Science and Engineering, Gunma University Ota Gunma 373-0057 Japan.
⁴ Department of Life Science and Technology, Tokyo Institute of Technology B-52, 4259 Nagatsuta, Midori-ku Yokohama Kanagawa 226-8501 Japan.
⁵ Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University 2-1 Yamadaoka, Suita Osaka 565-0871 Japan.
⁶ Institute for Advanced Co-Creation Studies, Osaka University 1-1 Yamadagaoka, Suita Osaka 565-0871 Japan.

Abstract

In this study, we synthesized radioexcitable luminescent polymer dots (P-dots) doped with heteroleptic tris-cyclometalated iridium complexes that emit red, green, and blue light. We investigated the luminescence properties of these P-dots under X-ray and electron beam irradiation, revealing their potential as new organic scintillators.