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

doi:10.1039/c8cc01736k

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 journal › Article › peer-review

26 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	5732-5735
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	45
DOIs	https://doi.org/10.1039/c8cc01736k
State	Published - 2018
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR2015-CRG4-2572
Acknowledgements: We kindly thank the laboratory of photonics and interfaces (EPFL, Switzerland) for the permission to use their ALD setup. We acknowledge financial support from the European Research Council (project Intersolar 291482), K.A.U.S.T. (Project OSR2015-CRG4-2572), and MINECO/FEDER (CTQ2015-64261-R). L. F. thanks the EU for a Marie Curie fellowship (658270). J. G.-A. acknowledges the Serra Hunter Program.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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abstract = "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.",

author = "Laia Franc{\`a}s and Eric Burns and Ludmilla Steier and Hyojung Cha and Llu{\'i}s Sol{\`a}-Hern{\'a}ndez and Xiaoe Li and {Shakya Tuladhar}, Pabitra and Roger Bofill and Jordi Garc{\'i}a-Ant{\'o}n and Xavier Sala and Durrant, {James R.}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR2015-CRG4-2572 Acknowledgements: We kindly thank the laboratory of photonics and interfaces (EPFL, Switzerland) for the permission to use their ALD setup. We acknowledge financial support from the European Research Council (project Intersolar 291482), K.A.U.S.T. (Project OSR2015-CRG4-2572), and MINECO/FEDER (CTQ2015-64261-R). L. F. thanks the EU for a Marie Curie fellowship (658270). J. G.-A. acknowledges the Serra Hunter Program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2018",

doi = "10.1039/c8cc01736k",

language = "English (US)",

volume = "54",

pages = "5732--5735",

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T1 - Rational design of a neutral pH functional and stable organic photocathode

AU - Francàs, Laia

AU - Burns, Eric

AU - Steier, Ludmilla

AU - Cha, Hyojung

AU - Solà-Hernández, Lluís

AU - Li, Xiaoe

AU - Shakya Tuladhar, Pabitra

AU - Bofill, Roger

AU - García-Antón, Jordi

AU - Sala, Xavier

AU - Durrant, James R.

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR2015-CRG4-2572 Acknowledgements: We kindly thank the laboratory of photonics and interfaces (EPFL, Switzerland) for the permission to use their ALD setup. We acknowledge financial support from the European Research Council (project Intersolar 291482), K.A.U.S.T. (Project OSR2015-CRG4-2572), and MINECO/FEDER (CTQ2015-64261-R). L. F. thanks the EU for a Marie Curie fellowship (658270). J. G.-A. acknowledges the Serra Hunter Program. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2018

Y1 - 2018

N2 - 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.

AB - 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.

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DO - 10.1039/c8cc01736k

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VL - 54

SP - 5732

EP - 5735

JO - Chemical Communications

JF - Chemical Communications

IS - 45

ER -

Rational design of a neutral pH functional and stable organic photocathode

Abstract

Bibliographical note

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