The non-fullerene acceptor (NFA) AQx-H is synthesized by replacing the outer undecyl straight chain of AQx-8 with a shorter carbon and high steric hindrance cyclohexane substituent group. D18:AQx-H blends display a better multi-length-scale fibril-like morphology, with better-defined crystalline feature. Thus, the AQx-H-based device has achieved further...

Impedance spectra of perovskite solar cells are varied and complex, often exhibiting multiple features and apparent negative capacitance. While these unusual spectra are often attributed to non-ideal measurement conditions or device degradation, it is shown that they are in fact a natural consequence of a mixed ionic-electronic conduction model in...

N-doped carbon nanotubes supported Ag single atoms and Ag atomic clusters catalyst is designed to exhibit excellent electrochemical CO2 reduction reaction activity in a flow cell. In situ synchrotron infrared spectroscopy and density functional theory calculations demonstrate that turning Ag single atoms into Ag clusters resulted in electron density...

By systematical summary and experimental investigation, a repeatable, reliable, and easy-operation normalized evaluation method for liquid electrolyte (LE) safety is proposed. A novel concept of self-extinguishing efficiency (SEE) is further defined to achieve comparability between different studies. The mechanism of flame retardants (FRs) in the...

All-air-processed perovskite solar cells with efficiency of 24.45% are realized by incorporating an amphoteric Lewis acid–base (cephalothin) into PbI2 films, which induced PbI2 films with highly oriented layered plane. The highly layer-oriented PbI2 films enabled forming a high-quality perovskite film with moderate amount of residual PbI2 in air condition....

Atomically ordered PdFe3 L12 intermetallic nanoparticles are incorporated into mesoporous carbon nanofibers for electrocatalytic nitrate reduction to produce ammonia. The catalyst demonstrates a high activity and stability, attributed to the cooperative effect of periodic adjacent Pd-Fe pair sites at the ordered (110) facet via enhancing proton...