Ramesh Kumar
Karlsruhe Institute of Technology, University of Bremen, Uppsala University
Research areas: Engineering · Electrical and Electronic Engineering · Perovskite Materials and Applications · 2D Materials and Applications · Ferroelectric and Piezoelectric Materials
0000-0002-7500-8694
About
I lead an Associated Junior Research Group at Karlsruhe Institute of Technology (KIT), based at InnovationLab Heidelberg, where we explore Photo-Iontronics: the interplay of photons, electrons, and ions for multifunctional electronics.
My research moves beyond conventional optoelectronics by exploiting mixed electronic–ionic conduction in halide perovskites and perovskite-inspired materials to develop new approaches for adaptive electronics and energy technologies.
Key research directions include:
• Halide perovskites & perovskite-inspired materials
• Memristors & neuromorphic electronics
• Electrolyte-gated transistors
• Photo-ionic devices for in-sensor computing
• Printed devices
Employment
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Das Karlsruher Institut für Technologie (KIT) – Die Forschungsuniversität in der Helmholtz YIGPrepPro Fellow to establish a research group at KIT2026 - Present
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University of Bremen Alexander von Humboldt Research Fellow2024 - Present
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Uppsala University Visiting Researcher2024 - 2025
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Uppsala University Postdoctoral Researcher2023 - 2024
Education
Education history is unavailable.
Projects & Funding
Projects & funding information is unavailable.
Publications (39)
- Lead‐Free Sb–Bi Perovskite‐Inspired Memristors: Compositional Control of Vacancy Migration for Neuromorphic Computing Save
- Back-contact charge selectivity enables efficient Cs2AgBi2I9 indoor photovoltaics under ambient office lighting Save
- Tailoring Defects in Bismuth‐Based Cs 3 Bi 2 Br 9 Perovskite‐Inspired Materials through Cooling‐Rate Modulation for Photo‐Supercapacit… Save
- Mechanistic Insights into Ionic Conduction in Lead Halide Perovskites and Perovskite‐Inspired Materials Save
- Pyridine-Based Multifunctional Surface Passivators Enable Efficient and Stable Perovskite Indoor Photovoltaics Save
- Regular and Inverted Hysteresis in Organic Electrochemical Transistors: Mechanisms and Electrochemical Insights Save
- A Review of Current Progress in Perovskite-Based Energy Storage to Photorechargeable Systems Save
- Electrolyte-Gated Ruddlesden–Popper Perovskites for Switchable Optoelectronic Universal Logic Gates Save
- The Promise of Operational Stability in Pnictogen-Based Perovskite-Inspired Solar Cells Save
- Perovskite‐Inspired Cs₂AgBi₂I₉: A Promising Photovoltaic Absorber for Diverse Indoor Environments Save
- Perovskite‐Inspired Cs₂AgBi₂I₉: A Promising Photovoltaic Absorber for Diverse Indoor Environments (Adv. Energy Mater. 7/2025) Save
- Unveiling the Impact of Bi3+ Heterovalent Doping on the Negative Capacitance and Ionic Conductivity of Perovskite Single Crystals: Implication in Neuromorphic Computing Save
- Hybrid halide perovskite quantum dots for optoelectronics applications: recent progress and perspective Save
- Ion mitigation and strain regulation with 2D Semi-Metals for MA-Based perovskite materials in highly efficient solar cells Save
- Impact of Indium Doping in Lead-Free (CH3NH3)3Bi2–xInxI9 Perovskite Photovoltaics for Indoor and Outdoor Light Harvesting Save
- Controlling Electronic-Ionic Kinetics via Size Engineering in CsPbBr3 Perovskite Nanocrystals Save
- Breaking the mold: Rethinking defects in Pb-free vacancy ordered perovskite for enhanced CO2 reduction and supercapacitor functionality Save
- Iontronics in Hybrid Halide Perovskites for Smart Portable Electronic Devices and Their Challenges Save
- Cover Feature: Photo‐generated Charge Trapping in Phase Segregated Halide Perovskites – A Comprehensive Approach towards Efficient Photo‐Rechargeable Ion Capacitors (Batteries & Supercaps 10/2023) Save
- Dimensional engineering to simultaneously enhance energy density and stability of MAPbBr3-based photo-rechargeable ion capacitors Save