Publications by Daniel Anthony Jacobs

Accelerating Optimization of Halide Perovskites: Two Blueprints for Automation

Christophe Ballif, Daniel Anthony Jacobs, Christian Michael Wolff

The fine-tuning of halide perovskite materials for both performance and stability calls for innovative tools that streamline high-throughput experimentation. Here, we present two complementary systems designed to accelerate the development of solution-proc ...

2025

Enhancing sensitivity in fluorescence measurements across an ultra-wide concentration range through optimizing combined-segments strategy

Daniel Anthony Jacobs

Fluorescence measurement technology is crucial in analytical instrumentation. However, when applied in fields such as environmental science and medical research for quantification purposes, it requires prior estimation of sample concentration and sample di ...

2025

Synergetic substrate and additive engineering for over 30%-efficient perovskite-Si tandem solar cells

Christophe Ballif, Mounir Driss Mensi, Quentin Thomas Jeangros, Mathieu Gérard Boccard, Daniel Anthony Jacobs, Kerem Artuk, Xin Yu Chin, Deniz Türkay, Christian Michael Wolff

Perovskite-silicon (Si) tandem solar cells are the most prominent contenders to succeed single-junction Si cells that dominate the market today. Yet, to justify the added cost of inserting a perovskite cell on top of Si, these devices should first exhibit ...

2024

Alleviating nanostructural phase impurities enhances the optoelectronic properties, device performance and stability of cesium-formamidinium metal-halide perovskites

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Beat Ruhstaller, Mostafa Rabie Shlaly Bahr Othman, Daniel Anthony Jacobs, Christian Michael Wolff, Anaël Morgane Jaffrès, Austin George Kuba

The technique of alloying FA+ with Cs+ is often used to promote structural stabilization of the desirable alpha-FAPbI3 phase in halide perovskite devices. However, the precise mechanisms by which these alloying approaches improve the optoelectronic quality ...

Royal Soc Chemistry2024

Interface passivation for 31.25%-efficient perovskite/silicon tandem solar cells

Christophe Ballif, Mounir Driss Mensi, Quentin Thomas Jeangros, Mathieu Gérard Boccard, Peter Joseph Fiala, Quentin Jean-Marie Armand Guesnay, Daniel Anthony Jacobs, Kerem Artuk, Xin Yu Chin, Deniz Türkay, Christian Michael Wolff

Silicon solar cells are approaching their theoretical efficiency limit of 29%. This limitation can be exceeded with advanced device architectures, where two or more solar cells are stacked to improve the harvesting of solar energy. In this work, we devise ...

American Association for the Advancement of Science2023

Lateral ion migration accelerates degradation in halide perovskite devices

Christophe Ballif, Quentin Thomas Jeangros, Daniel Anthony Jacobs, Kerem Artuk, Xin Yu Chin, Christian Michael Wolff

The migration of mobile ions has long been considered a source of performance degradation in devices based on halide perovskites, but details regarding the mechanisms and extent of this problem remain scarce. Here we report the finding that differences in ...

ROYAL SOC CHEMISTRY2022

Instability of p-i-n perovskite solar cells under reverse bias

Christophe Ballif, Laura Ding, Sylvain Nicolay, Quentin Thomas Jeangros, Arnaud Walter, Florent Sahli, Peter Joseph Fiala, Chien-Jen Yang, Fan Fu, Marion Solange Madeleine Dussouillez, Ricardo Augusto Zanotto Razera, Daniel Anthony Jacobs

Partial shading can trigger permanent damage in photovoltaic modules because the illuminated solar cells drive the shaded cells into reverse bias. Under reverse bias conditions, perovskite solar cells have been shown to degrade quickly due to processes tha ...

Royal Society of Chemistry2020

Light Management: A Key Concept in High-Efficiency Perovskite/Silicon Tandem Photovoltaics

Christophe Ballif, Florent Sahli, Daniel Anthony Jacobs

The remarkable recent progress in perovskite photovoltaics affords a novel opportunity to advance the power conversion efficiency of market-dominating crystalline silicon (c-Si) solar cells. A severe limiting factor in the development of perovskite/c-Si ta ...

AMER CHEMICAL SOC2019