All‐polymer solar cells (all‐PSCs) have received attention in recent years for their desirable properties in power conversion efficiency and long‐term operational stability. However, it is still a big challenge to acquire an “ideal” vertical‐phase distribution of polymer/polymer blends due to the non‐ideal molecular conformations and mixing behaviors. Herein, a ternary‐assisted sequential solution deposition (SSD) strategy is adopted to regulate the vertical compositional profile of all‐PSCs. A favorable acceptor(donor)‐enriched phase near the cathode(anode) can be obtained by a ternary‐assisted SSD strategy. With such a compositional profile, the exciton yield and carrier density can be enhanced by the vertical component gradient. Remarkably, the non‐geminate recombination is suppressed with an improved exciton diffusion length (15.36 nm) that delivers an outstanding power conversion efficiency over 16% of the ternary PM6/PY‐IT:PDI‐2T SSD devices. This work demonstrates the success of ternary‐assisted SSD strategy in reorganizing the vertical‐phase distribution, which provides a feasible route for a potential ternary device construction toward efficient all‐polymer photovoltaics.

The kinetic aggregation of nonfullerene acceptors under nonequilibrium conditions can induce electron–phonon interaction roll‐off and electronic band structure transition, which represents an important limitation for long‐term operational stability of organic solar cells (OSCs). However, the fundamental underlying mechanisms have received limited attention. Herein, a photophysical correlation picture between intermolecular electron–phonon coupling and trapping of electronic excitation is proposed based on the different aggregation behaviors of BTP‐eC9 in bulk‐heterojunction and layer‐by‐layer processed multicomponent OSCs. Two separate factors rationalize their correlation mechanisms: 1) the local lattice and/or molecular deformation can be regarded as the results of BTP‐eC9 aggregates in binary system under continuous heating, which brings about attenuated intermolecular electron–phonon coupling with intensified photocarrier trapping. 2) The higher density of trap states with more extended tails into the bandgap give rise to the formation of highly localized trapped polarons with a longer lifetime. The stabilized intermolecular electron–phonon coupling through synergistic regulation of donor and acceptor materials effectively suppresses unfavorable photocarrier trapping, delivering the improved device efficiency of 18.10% and enhanced thermal stability in quaternary OSCs. These results provide valuable property–function insights for further boosting photovoltaic stability in view of modulating intermolecular electron–phonon coupling.

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Diastolic heart failure (DHF) is characterized by symptoms including reduced ventricular relaxation and compliance, resulting in congestion of pulmonary and systemic circulation. The curative effects of regular cardiac agents are ineffective. Thus, new agents are required to treat chronic cardiac failure. The aim of the present study was to examine the clinical effects of the combined treatment by optimal dose of furosemide (20 mg/day) and spironolactone (40 mg/day) on elderly patients with diastolic heart failure (DHF) [New York Heart Association (NYHA) 1–2 grade]. A total of 93 patients diagnosed with DHF between February, 2013 and February, 2014 were enrolled in the present study. The patients were randomly divided into the furosemide group (20 mg/day, n=27), optimal dose group (20 mg/day furosemide+40 mg/day spirolactone, n=36), and large dose group (40 mg/day furosemide+100 mg/day spirolactone, n=30). Following treatment for one month, a comparison and analysis of the NYHA class, left ventricular ejection fraction (LVEF) and left ventricular end diastolic diameter (LVEDD), left ventricular wall segmental motion among the three groups were performed. The re-hospitalization rate of heart failure and incidence of electrolyte disorder among the three groups was compared and their differences analysed. Compared with pretreatment, the NYHA classifications of the three groups after treatment were reduced and differences were statistically significant (P<0.05). By contrast, for the NYHA classification after treatment there was no statistical significance (P>0.05). Compared with pretreatment, LVEF of the optimal dose group increased, LVEDD decreased, and the average systolic myocardial peak velocity and early diastolic myocardial peak velocity of ventricular wall motion were reduced, with differences being statistically significant (P<0.05). By contrast, in the furosemide and large dose groups no statistical significance was identified before and after the treatment (P>0.05). Improvement of the optimal dose group following treatment was more significant than the remaining two groups, and differences were statistically significant (P<0.05). The re-hospitalization rate of heart failure and incidence of electrolyte disorder in the optimal dose group following treatment were significantly less than the other two groups, and differences were statistically significant (P<0.05). In conclusion, the optimal dose (20 mg/day furosemide+40 mg/day spirolactone) significantly improved the clinical symptoms of elderly DHF patients (NYHA 1–2 grade) and ameliorated their long-term prognosis.

A novel strategy for asymmetric Shono‐type oxidative cross‐coupling has been developed by merging copper catalysis and electrochemistry, affording C1‐alkynylated tetrahydroisoquinolines with good to excellent enantioselectivity. The use of TEMPO as a co‐catalytic redox mediator is crucial not only for oxidizing a tetrahydroisoquinoline to an iminium ion species but also for decreasing the oxidation potential of the reaction. A novel bisoxazoline ligand is also reported.