H2020Индивидуална стипендия2017–2020

PHOTOPEROVSKITES · Photoexcitation Dynamics and Direct Monitoring of Photovoltaic Processes of Solid-State Hybrid Organic-Inorganic Perovskite Solar Cells

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-09-01 → 2020-02-29
Финансиране от ЕС: 195 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Хибридните перовскитни слънчеви клетки се анализират чрез проучване на движението на зарядите и структурата на материалите. Това помага за подобряване на стабилността им и създаването на гъвкави панели, които могат да захранват сензори при вътрешно осветление.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Photoexcitation Dynamics and Direct Monitoring of Photovoltaic Processes of Solid-State Hybrid Organic-Inorganic Perovskite Solar Cells

The project has achieved most of its objectives and milestones for the period, with relatively minor deviations. The photophysical studies of simple solution- processed high quality perovskite thin films and partial heterostructures were carried out and the kinetics of the charge transfer were compared for NiO and PEDOT:PSS. Using state of the art cathodoluminescence hyperspectral imaging, highly spatially resolved ~50 nm information on composition heterogeneity and local strain were obtained for the first time in the promising optoelectronic halide perovskites of CsPbBr3 and CsPbBr3:KI. Novel charge transporting layers, (both metal oxide, and organic semiconductor based) were developed to improve the shelf-life stability of the perovskite solar cells and to enable the fabrication of perovskite solar cells on the flexible substrates. A novel method towards the faster optimisation of charge transporting layers for efficient perovskite solar cells was developed through surface photovoltage measurements. The novel applicability of the fabricated perovskite solar cells in their indoor light harvesting is demonstrated through interface engineering and generated enough electrical power to power the sensors on the Internet of things applications.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Abundant, cheap and clean source of energy is fundamental to preserve global environment and sustained economic growth. Solar energy is considered as the ultimate solution in this regard. Among the three generations of solar cells developed with this objective, hybrid organic-inorganic perovskite solar cells with demonstrated power conversion efficiency (PCE) of over 22 % have bagged the greatest attention. Despite the impressive PCE, lower cost and facile processing opportunities for hybrid perovskite solar cells, their commercialization is not yet realized; poor stability, lack of robustness to subtle variations in processing, and Pb toxicity being the bottlenecks. We take up the view that pursuing fundamental understanding of the photophysics and photovoltaic process of these highly efficient lead halide perovskites can contribute to tackle their instability issue and also to the development of Pb free organic-inorganic halide perovskites with analogous optical and photovoltaic performance to that of former, expediting their market entry. Apart from photovoltaic sector, the fundamental knowledge evolved through this project is expected to have direct impact on the fabrication of high performing photodetectors, lasers, and light emitting devices based on hybrid perovskite materials. This interdisciplinary project lying at the interface of material science, physics and chemistry is expected to bring a breakthrough in perovskite solar cell research arena.The proposed project will utilize the applicant’s expertise in the fabrication of high efficient organic and perovskite solar cells in combination with world leading scientist Prof. Ifor Samuel’s expertise on photophysics aspects of thin film solar cells and the excellent infrastructure facilities at the host institution. In implementing this ambitious project, I will gain expertise on the photophysics and photovoltaic processes (under real operating conditions) of hybrid perovskite thin films and solar cells.

Оригинален текст от CORDIS (на английски).

Участници

THE UNIVERSITY COURT OF THE UNIVERSITY OF ST ANDREWS · ST ANDREWSКоординаторОбединеното кралство