Unleashing non-conjugated polymers as charge relay mediators

Abstract

Electron relay of interim polymer layer boosts photocatalytic organic transformation.

Non-conjugated polymer ligand: stimulating charge transfer towards photocatalytic selective organic transformation

“…32 It is obvious that PDDA encapsulation does not change the optical property of the CdS substrate, which is caused by the extremely low content of PDDA, implying that PDDA encapsulation exerts no substantial effect on the light absorption of CdS. 33 This is consistent with the UV-vis absorption spectrum of PDDA aqueous solution (Fig. S7†) which does not show absorption in the visible region.…”

“…32 It is obvious that PDDA encapsulation does not change the optical property of the CdS substrate, which is caused by the extremely low content of PDDA, implying that PDDA encapsulation exerts no substantial effect on the light absorption of CdS. 33 This is consistent with the UV-vis absorption spectrum of PDDA aqueous Similar to PDDA/CdS, the absorption band edge of the 2% Au@PDDA/CdS heterostructure demonstrates no obvious change compared with pristine CdS and PDDA/CdS counterparts, which is due to the low loading amount of Au@PDDA NCs failing to alter the light absorption of the CdS substrate. Moreover, similar light absorption of the CdS NWs and 2% Au@PDDA/CdS heterostructure can also be reflected by their unchanged colors (Fig.…”

Charge modulation over atomically precise metal nanoclusters via non-conjugated polymers for photoelectrochemical water oxidation

“…Contrary to p conjugated polymers, solid-state non-conjugated polymers are generally deemed as insulators due to the absence of delocalized p electrons along the molecular backbone, and thus fail to participate in the charge transfer process. [18][19][20] Consequently, in previous studies, high-temperature calcination is essentially compulsory to remove the non-conjugated insulating polymer in fabricating non-conjugated polymer-involved optoelectronic devices so as to reduce the interfacial charge transport resistance. 21,22 This leads us to consider what the positive role of nonconjugated insulating polymers can play in boosting interfacial charge migration.…”

Progressively stimulating carrier motion over transient metal chalcogenide quantum dots towards solar-to-hydrogen conversion

“…3,4 Thus, to overcome these bottlenecks, multifarious strategies such as metal or non-metal element doping, interface engineering, and heterojunction modulation have been actively pursued. 5–10 Despite the advancements, the fabrication of robust and stable TMC QD-based heterostructured photosystems remains challenging.…”