PMID- 34939749 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220225 IS - 2198-3844 (Electronic) IS - 2198-3844 (Linking) VI - 9 IP - 5 DP - 2022 Feb TI - White Emissions Containing Room Temperature Phosphorescence from Different Excited States of a D-pi-A Molecule Depending on the Aggregate States. PG - e2104539 LID - 10.1002/advs.202104539 [doi] LID - 2104539 AB - Development of pure organic molecular materials with room temperature phosphorescence (RTP) and their applications for white emitters have received significant attentions recently. Herein, a D-pi-A molecule (DMACPPY) which can realize white emitting under ambient conditions both in the crystal state and the doped-film state by combining RTP with two fluorescent emissions is reported. The white emission from the crystalline sample of DMACPPY consists fluorescence from S(2) (the second excited singlet state) and S(1) (the first excited singlet state) along with RTP from T(1) (the first excited triplet state), namely, SST-type white light. While, the white emission from the poly methyl methacrylate (PMMA) film doped with DMACPPY contains fluorescences from S(2) and S(1) , and RTP from T(2) (the second excited triplet state) rather than T(1) (STS type). DMACPPY cannot exhibit white spectrum within alternative crystalline state since inferior RTP intensity despite similar ternary emissions. The results demonstrate that the emissive properties for excited states of DMACPPY can be tuned by changing the aggregate state from crystalline to dispersion state in PMMA film. This new RTP emitter fulfills the talent for white emitting and achieves dual-mode white emissions, invisibly, expands the application range for pure organic and heavy atom-free RTP materials. CI - (c) 2021 The Authors. Advanced Science published by Wiley-VCH GmbH. FAU - Du, Mingxu AU - Du M AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. FAU - Shi, Yuhao AU - Shi Y AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. AD - Department of Chemistry, Yanbian University, Jilin, 133002, China. FAU - Zhou, Qi AU - Zhou Q AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Yin, Zheng AU - Yin Z AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Chen, Liangliang AU - Chen L AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Shu, Yilin AU - Shu Y AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Sun, Guang-Yan AU - Sun GY AD - Department of Chemistry, Yanbian University, Jilin, 133002, China. FAU - Zhang, Guanxin AU - Zhang G AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Peng, Qian AU - Peng Q AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. FAU - Zhang, Deqing AU - Zhang D AUID- ORCID: 0000-0002-5709-6088 AD - Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China. AD - University of Chinese Academy of Sciences, Beijing, 100049, P. R. China. LA - eng GR - GJTD-2020-02/Chinese Academy of Sciences/ GR - 21973099/National Natural Science Foundation of China/ GR - 2019BMS20007/BMS JUNIOR FELLOW/ GR - CAS-Croucher Funding Scheme/ PT - Journal Article DEP - 20211223 PL - Germany TA - Adv Sci (Weinh) JT - Advanced science (Weinheim, Baden-Wurttemberg, Germany) JID - 101664569 SB - IM PMC - PMC8844470 OTO - NOTNLM OT - aggregate state OT - room temperature phosphorescence OT - triplet state OT - white emission COIS- The authors declare no conflict of interest. EDAT- 2021/12/24 06:00 MHDA- 2021/12/24 06:01 PMCR- 2021/12/23 CRDT- 2021/12/23 08:54 PHST- 2021/11/21 00:00 [revised] PHST- 2021/10/13 00:00 [received] PHST- 2021/12/24 06:00 [pubmed] PHST- 2021/12/24 06:01 [medline] PHST- 2021/12/23 08:54 [entrez] PHST- 2021/12/23 00:00 [pmc-release] AID - ADVS3384 [pii] AID - 10.1002/advs.202104539 [doi] PST - ppublish SO - Adv Sci (Weinh). 2022 Feb;9(5):e2104539. doi: 10.1002/advs.202104539. Epub 2021 Dec 23.