MRS Meetings and Events


EN02.03.01 2022 MRS Fall Meeting

Rational Design of Photoelectrochemical Perovskite-BiVO4 Tandem Devices for Scalable Solar Fuel Production

When and Where

Nov 28, 2022
8:00pm - 10:00pm

Hynes, Level 1, Hall A



Virgil Andrei1,Judith Driscoll1,Robert Hoye2,Richard Friend1,Erwin Reisner1

University of Cambridge1,Imperial College London2


Virgil Andrei1,Judith Driscoll1,Robert Hoye2,Richard Friend1,Erwin Reisner1

University of Cambridge1,Imperial College London2
Metal halide perovskites have emerged as promising alternatives to commonly employed light absorbers for solar fuel synthesis, enabling unassisted photoelectrochemical (PEC) water splitting<sup>[1,3]</sup> and CO<sub>2</sub> reduction to syngas.<sup>[2,4]</sup> While the bare perovskite light absorber is rapidly degraded by moisture, recent developments in the device structure have led to substantial advances in the device stability. Here, we give an overview of the latest progress in perovskite PEC devices, introducing design principles to improve their performance and reliability. For this purpose, we will discuss the role of charge selective layers in increasing the device photocurrent and photovoltage, by fine-tuning the band alignment and enabling efficient charge separation. A further beneficial effect of hydrophobicity is revealed by comparing devices with different hole transport layers (HTLs).<sup>[1,3]</sup> On the manufacturing side, we will provide new insights into how appropriate encapsulation techniques can extend the device lifetime to a few days under operation in aqueous media.<sup>[1,2]</sup> To this end, we replace low melting alloys with graphite epoxy paste as a conductive, hydrophobic and low-cost encapsulant.<sup>[3,5]</sup> The combined advantages of these approaches are demonstrated in a perovskite-BiVO<sub>4</sub> tandem device archiving selective unassisted CO<sub>2</sub> reduction to syngas.<sup>[4]</sup> These design principles are successfully applied to an underexplored BiOI light absorber, increasing the photocathode stability towards hydrogen evolution from minutes to months.<sup>[6]</sup> Finally, we take a glance at the next steps required for scalable solar fuels production, showcasing our latest progress in terms of device manufacturing. A suitable choice of materials can decrease the device cost tenfold and expand the device functionality.<sup>[7]</sup> Such materials are compatible with large-scale, automated fabrication processes, which present the most potential towards future real-world applications.<sup>[8]</sup><br/><br/><br/>[1] Andrei, V. et al. <i>Adv. Energy Mater.</i> 2018, 8, 1801403.<br/>[2] Andrei, V.; Reuillard, B.; Reisner, E. <i>Nat. Mater.</i> 2020, 19, 189–194.<br/>[3] Pornrungroj, C.; Andrei, V et al. <i>Adv. Funct. Mater.</i> 2021, 31, 2008182.<br/>[4] Rahaman, M.; Andrei, V. et al. <i>Energy Environ. Sci.</i> 2020, 13, 3536–3543.<br/>[5] Andrei, V.; Bethke, K.; Rademann, K. <i>Phys. Chem. Chem. Phys.</i> 2016, 18, 10700–10707.<br/>[6] Andrei, V.; Jagt, R. A. et al. <i>Nat. Mater.</i> 2022. DOI: 10.1038/s41563-022-01262-w.<br/>[7] Andrei, V.; Ucoski, G. M.; Pornrungroj, C.; Uswachoke, C.; Wang, Q.; Achilleos, D. S.; Kasap, H.; Sokol, K. P.; Jagt, R. A.; Lu, H.; Lawson, T.; Wagner, A.; Pike, S. D.; Wright, D. S.; Hoye, R. L. Z.; MacManus-Driscoll, J. L.; Joyce, H. J.; Friend, R. H.; Reisner, E. <i>Nature</i>, accepted.<br/>[8] Sokol, K. P.; Andrei, V. <i>Nat. Rev. Mater.</i> 2022, 7, 251–253.



Symposium Organizers

Jin-Wook Lee, Sungkyunkwan University
Carolin Sutter-Fella, Lawrence Berkeley National Laboratory
Wolfgang Tress, Zurich University of Applied Sciences
Kai Zhu, National Renewable Energy Laboratory

Symposium Support

ACS Energy Letters
SKKU Insitute of Energy Science & Technology

Session Chairs

Il Jeon
Jin-Wook Lee
Carolin Sutter-Fella
Wolfgang Tress

In this Session

Rational Design of Photoelectrochemical Perovskite-BiVO4 Tandem Devices for Scalable Solar Fuel Production

Mechanochemistry-Driven Engineering of Cs4PbX6/CsPbX3 (X=Cl, Br, I) Heterostructure for Designing Highly Luminescent Perovskites

Entirely Roll to Roll Coated Perovskite Photovoltaics Enabled by Carbon Ink Formulation

Morphology-Controlled Lead-Free Halide Double Perovskite Nanocrystals by Chemical Vapor Deposition

3D Printing of Ruddlesden-Popper Perovskites with High Color Purity and Stability

Perovskite and Organic Photoanodes with Low-Temperature Printed Carbon Layer for Solar Water Splitting

Co-Evaporation and Characterization of Tin Based Perovskite Films For Solar Cell Applications

Hierarchically Ordered Perovskites with High Photo-Electronic and Environmental Stability via Nanoimprinting Guided Block Copolymer Self-Assembly

Air and Oxygen Stable Core/Shell Perovskite Nanocrystals for Deep-Blue LED Application

Lighting Beyond Blue—Violet Metal Halide Perovskite Light-Emitting Diodes

View More »

Publishing Alliance

MRS publishes with Springer Nature