Yingxiang Zhai

1 Introduction Room temperature phosphorescence (RTP) materials have attracted considerable attention due to their prolonged luminescence lifetimes, large Stokes shifts, and tunable optical performance [1-3]. As such, RTP materials exhibit great potential in bioimaging [4-6], optoelectronics [7, 8], anti-counterfeiting applications [9-11], sensors and other fields [12-14], and great progress has been made in these materials.

Abstract Biomass-derived long-persistent afterglow materials that simultaneously deliver thermally activated delayed fluorescence (TADF) and room-temperature phosphorescence (RTP) are highly sought after but remain challenging to achieve, particularly when daylight-visible RTP and high-temperature-tolerant, color-tunable TADF are required.

Abstract The preparation of sustainable biophosphors exhibiting room-temperature phosphorescence (RTP) for additive manufacturing presents both significant scientific promise and substantial synthetic challenges. To address this technological gap, with this research, we engineer CX-Wood using rational molecular design by grafting carboxyl-functional groups onto native lignocellulosic matrices, enabling direct ink writing (DIW) using our RTP wood composite.