Suppressing the defects from SnO and perovskite interface is essential for the fabrication of large-area n-i-p perovskite solar cells (PSCs) with the needed lifetime and efficiency for commercialization. Here, we report the employment of l-citrulline (CIT), which has amino acid (─COOH, ─NH) and urea (─NH─CO─NH) groups, during SnO colloidal dispersion to function as a molecular bridge to modulate the SnO/perovskite buried interface. The amino acid group can effectively coordinate with Sn to passivate the oxygen vacancy defects of SnO, and the urea group can interact with uncoordinated Pb and I.
View Article and Find Full Text PDFThe variety of highly efficient red/near-infrared (NIR) materials with thermally activated delayed fluorescence (TADF) feature is extremely limited so far, and it is necessary to expand the candidate pool of excellent red/deep-red emitters. However, how to control the energy level alignment of the CT (singlet charge transfer) state and the LE (triplet local excitation) state to improve the emission efficiency of materials remains a challenge. Herein, based on our previously reported green fluorescent material 67dTPA-FQ, three new donor-acceptor type TADF materials (TQ-oMeOTPA, TsQ-oMeOTPA and SQ-oMeOTPA) were designed by introducing 4,4'-dimethoxy triphenylamine (MeOTPA) as the donor, and introduced S atoms on the acceptors to enhance the spin-orbit coupling (SOC) and CT effects.
View Article and Find Full Text PDFEthnopharmacological Relevance: The Jiawei Tongqiao Huoxue decoction (JTHD), composed of Acorus calamus var. angustatus Besser, Paeonia lactiflora Pall., Conioselinum anthriscoides 'Chuanxiong', Prunus persica (L.
View Article and Find Full Text PDF