Highlights Toujie Quwen Granules play an important role in the treatment of COVID-19. SARS-CoV-2 3CL hydrolase, RdRP, ACE2, IL-6 and S protein are the crucial enzymes for treating COVID-19. Molecular docking revealed the proposed binding characteristics between five enzymes and quercetin, calycosin, astragaloside IV, rutin, isoquercitrin. Contrary to rutin and astragaloside IV, quercetin and isoquercitrin bound to Spike protein rather than ACE2.

Triplet−triplet annihilation (TTA) upconversion has shown promising potentials in the augmentation of solar energy conversion. However, challenging issues exist in improving TTA upconversion efficiencies in solid-states, one of which is the back energy transfer from upconverted singlet annihilators to sensitizers, resulting in decreasing upconversion emission.Here we present a light-harvesting molecular wire consisting of dendrons with 9,10diphenylanthracene derivatives (DPAEH) at the periphery and p-phenylene ethynylene oligomers (PPE) as the wire core. The peripheral DPAEH antenna funnels singlet excitonic energy to the wire on a 12 ps time scale. Incorporating the molecular wire into the TTA upconversion solid consisting of the DPAEH annihilator and the porphyrin sensitizer evidently improves the upconversion quantum yield from 1.5% to 2.7% upon 532 nm excitation by suppressing the back energy transfer from the singlet annihilator to the sensitizer. This finding offers a potential route to use a singlet energy light-harvesting architecture for enhancing TTA upconversion.

Organic light‐emitting transistors (OLETs), a kind of highly integrated and minimized optoelectronic device, demonstrate great potential applications in various fields. The construction of high‐performance OLETs requires the integration of high charge carrier mobility, strong emission, and high triplet exciton utilization efficiency in the active layer. However, it remains a significant long‐term challenge, especially for single component active layer OLETs. Herein, the successful harvesting of triplet excitons in a high mobility emissive molecule, 2,6‐diphenylanthracene (DPA), through the triplet‐triplet annihilation process is demonstrated. By incorporating a highly emissive guest into the DPA host system, an obvious increase in photoluminescence efficiency along with exciton utilization efficiency results in an obvious enhancement of external quantum efficiency of 7.2 times for OLETs compared to the non‐doped devices. Moreover, well‐tunable multi‐color electroluminescence, especially white emission with Commission Internationale del'Eclairage  of (0.31, 0.35), from OLETs is also achieved by modulating the doping concentration with a controlled energy transfer process. This work opens a new avenue for integrating strong emission and efficient exciton utilization in high‐mobility organic semiconductors for high‐performance OLETs and advancing their related functional device applications.