Opendata, web and dolomites


Defect Engineering, Advanced Modelling and Characterization for Next Generation Opto-Electronic-Ionic Devices

Total Cost €


EC-Contrib. €






 OptEIon project word cloud

Explore the words cloud of the OptEIon project. It provides you a very rough idea of what is the project "OptEIon" about.

performance    examine    data    super    constant    outcome    spectroscopic    physical    opteion    linked    computing    first    degradation    hybrid    optoelectronic    physics    recombination    memristors    suffers    ionic    tunable    answers    imaging    resolution    nature    demonstrator    pressure    era    formed    temperature    cells    outstanding    memristor    arrays    dimensional    stoichiometry    machine    diodes    halide    techniques    conductivity    lattice    clear    fourth    herald    learning    metal    losses    perovskite    characterization    deteriorate    time    solution    perovskites    materials    efficient    fabricating    location    simulation    lower    light    cross    nano    near    tip    follows    defects    electronic    semiconductor    mobile    employ    diffusion    processability    movement    material    solar    emitting    successful    neuromorphic    combination    embodiments    poorly    partial    emerged    sections    questions    causing    stable    constituents    bandgap    evolution    interesting    enhanced    expertise    transient    device    mixed    model   

Project "OptEIon" data sheet

The following table provides information about the project.


Organization address
postcode: 80539

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙980˙735 €
 EC max contribution 1˙980˙735 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-03-01   to  2025-02-28


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Defects in semiconductor materials commonly deteriorate the performance of optoelectronic devices such as solar cells and light-emitting diodes. In the recently emerged and highly successful hybrid metal halide perovskite, some lattice defects are even mobile leading to mixed ionic-electronic conductivity. This and other outstanding properties (tunable bandgap, lower dimensional embodiments, solution processability) make the perovskite a very interesting material for research and application. At the same time, it suffers from various degradation processes, linked to these poorly understood ionic defects. The major questions are: Where and what are these defects? How are they formed and how can we control their movement? OptEIon will provide answers to these questions. Based on my expertise in the device physics and experience in perovskites I will proceed as follows: First, I will characterize the transient response of devices with different perovskite materials, different stoichiometry, partial pressure of constituents, temperature, etc. to find clear evidence for the nature of the mobile defects and their diffusion constant. Second, I will employ nano-scale characterization on cross sections of working devices to measure location and time evolution of defects causing recombination losses in solar cells. In addition to established measurement techniques, I will use tip-enhanced (near field) spectroscopic techniques, which can provide super-resolution imaging. Third, I will apply device simulation to examine the measurement results. I will furthermore evaluate how machine learning in combination with our physical model could be implemented to help analyse device data. Fourth, I will exploit the results by fabricating demonstrator memristor arrays that can be controlled by light. The outcome will be more efficient and stable solar cells and novel optoelectronic devices such as memristors, which are supposed to herald a new era of neuromorphic computing.

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The information about "OPTEION" are provided by the European Opendata Portal: CORDIS opendata.

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