Rational design of a neutral pH functional and stable organic photocathode

Laia Francàs, Eric Burns, Ludmilla Steier, Hyojung Cha, Lluís Solà-Hernández, Xiaoe Li, Pabitra Shakya Tuladhar, Roger Bofill, Jordi García-Antón, Xavier Sala, James R. Durrant

Research output: Contribution to journalArticleResearchpeer-review

15 Citations (Scopus)

Abstract

© 2018 The Royal Society of Chemistry. In this work we lay out design guidelines for catalytically more efficient organic photocathodes achieving stable hydrogen production in neutral pH. We propose an organic photocathode architecture employing a NiO hole selective layer, a PCDTBT:PCBM bulk heterojunction, a compact TiO 2 electron selective contact and a RuO 2 nanoparticle catalyst. The role of each layer is discussed in terms of durability and function. With this strategically designed organic photocathode we obtain stable photocurrent densities for over 5 h and discuss routes for further performance improvement.
Original languageEnglish
Pages (from-to)5732-5735
JournalChemical Communications
Volume54
Issue number45
DOIs
Publication statusPublished - 1 Jan 2018

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