Project description
Enhanced control over charge carriers could boost photodetection
Photodetectors are sensors that transform light into electrical signals. They are widely used and essential to applications in fields including optical communications, biomedical imaging and gas sensing. Hybrid halide perovskites have gotten tremendous attention for their application in solar cells and are now gaining momentum for use in other types of optoelectronics. With the support of the Marie Skłodowska-Curie Actions programme, the OPTOHYB project is characterising the photoluminescence and dynamic localisation of charge carriers in this new hybrid structure. This approach should lead to better control over the charge carriers’ localisation to enhance photodetection.
Objective
OPTOHYB focuses on studying the carrier localization (CL) in a new hybrid structure namely halide perovskites/GaAs for photodetection application. Understanding the CL phenomenon in this hybrid structure could provide insights towards enhancing/controlling the optoelectronic properties. The idea consists of detecting and controlling the CL in the hybrid heterojunction and orient it towards photodetection devices. The phenomenon can be generated, either, randomly by strain, composition, size, and diffusion fluctuations, or, controllably by doping. The CL affects the bandgap (creating band-tails states and optical transitions) which affects the carrier lifetime. The experimental treatment of the phenomenon will be performed optically by the mean of steady-state photoluminescence (PL) and the time-resolved photoluminescence (TRPL) to evaluate the CL signatures. The obtained results will be correlated with morphological and structural observations to qualitatively understand the luminescence mechanisms in the new hybrid structure. To realize OPTOHYB's goal, for the first time, a quantitative study by modeling the PL features and the decay time will be performed using the Localized State Ensemble model (LSE) and the generalized model for TRPL. The newly obtained parameters will allow the control of the CL's evolution versus the ex- and/or in-situ conditions. The successful execution of this proposal will create a new platform with controllable band-tail state formation and carriers dynamic related to the CL phenomenon. Therefore, slowing the charge carrier lifetime due to the carrier hopping between different states in the band-tail, which is beneficial for photodetection. Finally, the fabrication of a photodetector based on halide perovskites/GaAs heterostructure prototype will be performed. The efficiency of the prototype will be checked regarding the possible engineering of the CL and its effect on the prototype and the way on how we can exploit it.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences physical sciences electromagnetism and electronics optoelectronics
- natural sciences mathematics applied mathematics mathematical physics
- natural sciences mathematics applied mathematics dynamical systems
- natural sciences physical sciences molecular and chemical physics
- natural sciences mathematics applied mathematics mathematical model
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions
MAIN PROGRAMME
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H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) H2020-MSCA-IF-2020
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
43121 PARMA
Italy
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.