文献类型：期刊文献

英文题名：Tailoring triplet energy transfer and F?rster resonance energy transfer in boron dipyrromethene modified lanthanide doped upconversion nanohybrids

作者：Xiao, Weitong[1,2];Wu, Yiting[1];Wang, Feiran[2];Turyanska, Lyudmila[2];Yu, Huimei[3];Luan, Weiling[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, CPCIF Key Lab Adv Battery Syst & Safety, Shanghai 200237, Peoples R China;[2]Univ Nottingham, Fac Engn, Ctr Addit Mfg, Jubilee Campus, Nottingham NG8 1BB, England;[3]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

年份：2026

外文期刊名：NANOSCALE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001852478900001)】；

基金：This work was funded by the National Natural Science Foundation of China (52375144), the Engineering and Physical Sciences Research Council [grant number EP/P031684/1], and the China Scholarship Council (CSC). The authors thank the Research Center of Analysis and Test of East China University of Science and Technology for help with characterization.

语种：英文

摘要：Tailoring the energy transfer (ET) processes, including the singlet energy transfer (SET) or triplet energy transfer (TET) process, in hybrid systems consisting of inorganic nanoparticles and organic molecules can offer a strategy for the design and synthesis of bright fluorescent probes for photodynamic therapy or photocatalytic applications. However, the weak absorption and low quantum yield of lanthanide doped upconversion nanoparticles (UCNPs) limited the performance of the molecule-UCNP hybrid system, and the complex mechanism of the ET process involving singlet and triplet excitons is yet to be fully understood. Here, we report on a strategy for the synthesis of boron dipyrromethene (BODIPY) modified UCNP nanohybrids to engineer the SET or TET processes, specifically 8-(4-carboxyphenyl)-3,5-(4-hydroxyl)styryl-1,7-tetramethyl-pyrromethene fluoroborate (BDP-1) and 8-(4-carboxyphenyl)-2,6-diiodo-3,5-(4-hydroxyl)styryl-1,7-tetramethyl-pyrromethene fluoroborate (IBDP-1). These nanohybrids exhibit enhanced upconversion performance with an 800-times increase in upconversion quantum yield (UCQY) and efficient singlet oxygen (1O2) generation under 980 nm excitation. Our quantum chemistry calculations suggest that the energy transfer in these systems takes place by the F & ouml;rster resonance energy transfer (FRET) and back energy transfer (BET) in NaYbF4:2%Er3+@BDP-1 (UCNP@BDP-1), and that direct triplet energy transfer (TET) from Yb3+ to anchored IBDP-1 is the dominant energy transfer mechanism in NaYbF4:2%Er3+@IBDP-1 (UCNP@IBDP-1).