All‐polymer solar cells (all‐PSCs), with n ‐type conjugated polymer ( n ‐CP) as acceptor instead of fullerene derivative or lately developed small molecule acceptors (SMAs), have drawn tremendous research interests in recent years, due to their inherent advantages of good film‐forming property, morphology stability and mechanical flexibility. Thus numerous n ‐CPs have been developed, among them, a naphthalene diimide‐based polymer N2200 is the most representative and most widely used n ‐CP...
Wed Aug 19, 2020 18:45
In photocatalysis, the Schottky barrier in metal‐semiconductor hybrids is known to promote charge separation, but a core‐shell structure always leads to charge build‐up and eventually shuts off the photocurrent. Here, we show that the Au‐Cu2O hybrid nanostructures could be continuously tuned, particularly when the Cu2O domains are single‐crystalline. It is in contrast to the conventional systems where the hybrid configuration is mainly determined by the choice of materials. The distal separation...
Wed Aug 19, 2020 18:45
Incorporation of an azulene moiety into a diarylethene photoswitch gives rise to unprecedented acid‐dependent negative photochromism. The unusual photochromic behavior can be understood by direct protonation on the photoactive π‐system due to the unique electronic structure of azulene. Abstract Proton‐responsive photochromic molecules are attractive for their ability to react on non‐invasive rapid optical stimuli and the importance of protonation/deprotonation processes in various fields....
Wed Aug 19, 2020 16:40
Ten linear conjugated organic polymer photocatalysts are presented for water oxidation in the presence of an electron scavenger. The results can be explained by a combination of factors, such as thermodynamic driving force, light absorption, and dispersibility of the relatively hydrophilic polymer particles. Transient absorption spectroscopy was used to study the charge‐carrier dynamics. Abstract The first examples of linear conjugated organic polymer photocatalysts that produce oxygen...
Wed Aug 19, 2020 16:40
Artificial protein analogues of adhesive mussel proteins were prepared by enzyme‐induced peptide polymerization, integrating sequence modules for adhesion and activable cohesion control. The polymers are generated by the formation of cysteinyldopa linkages and combine potent interaction functionalities with a pH‐triggered cohesion‐control mechanism, thus enabling β‐sheet formation and getting closer to mimicking mussel foot protein. Abstract Artificial mussel‐glue proteins with pH‐triggered...
Wed Aug 19, 2020 16:04
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