Rational design of a neutral pH functional and stable organic photocathode
| Autor: | Xavier Sala, Roger Bofill, James R. Durrant, Eric Burns, Pabitra Shakya Tuladhar, Hyojung Cha, Jordi García-Antón, Xiaoe Li, Lluís Solà-Hernández, Ludmilla Steier, Laia Francàs |
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| Přispěvatelé: | Commission of the European Communities, Kaust |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Catalysis Polymer solar cell Photocathode Materials Chemistry Hydrogen production Photocurrent business.industry Non-blocking I/O Organic Chemistry Metals and Alloys General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Ceramics and Composites Optoelectronics 0210 nano-technology business 03 Chemical Sciences Layer (electronics) |
| Zdroj: | Chemical communications (Cambridge, England). 54(45) |
| ISSN: | 1364-548X |
| Popis: | 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 TiO2 electron selective contact and a RuO2 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. |
| Databáze: | OpenAIRE |
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