Prof. Dr. Emil J. W. List-Kratochvil

Prof. List-Kratochvil erforscht die Kontrolle von Ladungstransport und elektro-optischen Eigenschaften an Grenzflächen in hybriden ionisch-elektronischen Systemen (HIOS) sowie die Herstellung hochpräziser gedruckter Elektronik im Mikrometerbereich. Seine aktuelle Arbeit zielt darauf ab, organische Halbleiter und Dünnschicht-Transistoren so zu optimieren, dass sie für Display- und Logik-Anwendungen in industrieller Qualität hergestellt werden können — ein Schlüsselproblem für die Skalierung von gedruckter Elektronik von der Forschung zur Produktion. Die Ergebnisse sind relevant für die Halbleiter-, Display- und Elektronik-Industrie, insbesondere für kostengünstige, flexible und großflächig herstellbare elektronische Komponenten.

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• EU: Printed Logic for Applications of Screen Matrix Activation (PLASMAS)

  Quelle ↗

  Zeitraum: 05/2016 - 04/2017 Projektleitung: Prof. Dr. Emil J. W. List-Kratochvil

• Konzept zur Herstellung von Kathoden mittels Nanodrähten (Transferbonus)

  Quelle ↗

  Zeitraum: 06/2016 - 07/2016 Projektleitung: Prof. Dr. Emil J. W. List-Kratochvil

• SFB 951/2: Aktive Kontrolle des Ladungstransports und elektro-optischer Grenzflächeneigenschaften in HIOS (TP B14)

  Quelle ↗

  Förderer: DFG Sonderforschungsbereich Zeitraum: 04/2017 - 06/2019 Projektleitung: Prof. Dr. Emil J. W. List-Kratochvil

• Ink Design Enabling Slot‐Die Coated Perovskite Solar Cells with >22% Power Conversion Efficiency, Micro‐Modules, and 1 Year of Outdoor Performance Evaluation

  2023

  Advanced Energy Materials · DOI

  Abstract The next technological step in the exploration of metal‐halide perovskite solar cells is the demonstration of larger‐area device prototypes under outdoor operating conditions. The authors here demonstrate that when slot‐die coating the halide perovskite layers on large areas, ribbing effects may occur but can be prevented by adjusting the precursor ink's rheological properties. For formamidinium lead triiodide (FAPbI 3 ) precursor inks based on 2‐methoxyethanol, the ink viscosity is adjusted by adding acetonitrile (ACN) as a co‐solvent leading to smooth FAPbI 3 thin‐films with high quality and layer homogeneity. For an optimized content of 46 vol% of the ACN co‐solvent, a certified steady‐state performance of 22.3% is achieved in p‐i‐n FAPbI 3 ‐perovskite solar cells. Scaling devices to larger areas by making laser series‐interconnected mini‐modules of 12.7 cm 2 , a power conversion efficiency of 17.1% is demonstrated. A full year of outdoor stability testing with continuous maximum power point tracking on encapsulated devices is performed and it is demonstrated that these devices maintain close to 100% of their initial performance during winter and spring followed by a significant performance decline during warmer summer months. This work highlights the importance of the real‐condition evaluation of larger area device prototypes to validate the technological potential of halide perovskite photovoltaics.

• Advances in Inkjet‐Printed Metal Halide Perovskite Photovoltaic and Optoelectronic Devices

  2019

  Energy Technology · DOI

  Inkjet printing (IJP) has evolved over the past 30 years into a reliable, versatile, and cost‐effective industrial production technology in many areas from graphics to printed electronic applications. Intensive research efforts have led to the successful development of functional electronic inks to realize printed circuit boards, sensors, lighting, actuators, energy storage, and power generation devices. Recently, a promising solution‐processable material class has entered the stage: metal halide perovskites (MHPs). Within just 10 years of research, the efficiency of perovskite solar cells (PSCs) on a laboratory scale increased to over 25%. Despite the complex nature of MHPs, significant progress has also been made in controlling film formation in terms of ink development, substrate wetting behavior, and crystallization processes of inkjet‐printed MHPs. This results in highly efficient inkjet‐printed PSCs with a power conversion efficiency (PCE) of almost 21%, paving the way for cost‐effective and highly efficient thin‐film solar cell technology. In addition, the excellent optoelectronic properties of inkjet‐printed MHPs achieve remarkable results in photodetectors, X‐ray detectors, and illumination applications. Herein, a comprehensive overview of the state‐of‐the‐art and recent advances in the production of inkjet‐printed MHPs for highly efficient and innovative optoelectronic devices is provided.