HEИндивидуална стипендия2023–2025

TOGETHER · Towards Green Hydrogen by Layered Metal Halide Perovskite Heterostructures

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

Период: 2023-01-16 → 2025-01-15
Финансиране от ЕС: 172 750 €
Участници: 1
Схема: HORIZON-TMA-MSCA-PF-EF

Линиите свързват координатора с партньорите.

Накратко на български

Двуизмерни перовскити се използват за създаване на структури, които по-ефективно разделят електрическите заряди при превръщане на слънчева енергия в водород. Това помага за подобряване на процесите по производството на чиста енергия и намаляване на въглеродните емисии.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Towards Green Hydrogen by Layered Metal Halide Perovskite Heterostructures

The European Green Deal targets climate neutrality by 2050, emphasizing renewable energy and green hydrogen as key strategies for decarbonization. Direct solar-to-fuel conversion, where solar energy drives the reduction of protons into hydrogen using a photocatalyst, is a promising yet challenging approach that requires advances in material efficiency. Two-dimensional layered perovskites (2DLPs) offer tunable optoelectronic properties, solution processability, and enhanced stability compared to their 3D counterparts, making them strong candidates for light-driven chemical reactions. However, their high exciton binding energy limits charge separation, posing a challenge for efficient photocatalysis. Further, the layered structure of 2DLPs allows excitons and charge carriers to move more freely in the in-plane direction compared to the out-of-plane direction. This makes lateral heterostructures, where material properties vary along the in-plane direction, especially useful for efficient energy transfer, charge separation, and extraction. TOGETHER (Towards Green Hydrogen by Layered Metal Halide Perovskite Heterostructures) tackled this challenge by integrating lateral heterostructures into 2DLPs to improve charge separation and enable directional charge carrier flow for light-driven chemical reactions. Through controlled ion exchange and sequential crystallization, the project developed tailored 2DLP heterostructures with tunable band alignments. By combining expertise in material synthesis, advanced photophysics, and material characterization, TOGETHER aimed to bridge the gap between fundamental material design and practical photocatalytic applications. The project focused on three key objectives: development of lateral heterostructures in 2DLPs with tunable band alignments, understanding their formation mechanisms and structural and optical properties, and demonstrating their versatility for light-driven applications. Overall, TOGETHER introduced novel synthesis techniques for complex lateral heterostructures in 2DLPs, provided insights into their formation and energy flow dynamics, and successfully integrated 2DLPs into a platform for osmotic power generation.

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

Цел на проекта

Green hydrogen is feedstock, fuel, energy carrier, and storage at the same time, and one of the important cornerstones to decarbonize industrial and economic sectors on the European continent. The proposed action ‘Towards Green Hydrogen by Layered Metal Halide Perovskite Heterostructures - TOGETHER’ will deliver a highly tunable material platform by integrating lateral heterostructures in two-dimensional layered metal halide perovskites (2DLP) to overcome the high exciton binding energy and ultimately enable long-distance charge separation for photocatalytic generation of green hydrogen. The structures developed in TOGETHER will provide a spatially confined directional flow of electrons to the edge of the semiconducting layer in 2DLPs, where they can be extracted by protons to form hydrogen. The unique flexibility of the materials platform architecture will result in a large degree of freedom to tune each step in the photocatalytic cycle to increase the solar-to-fuel conversion efficiency. The formation of lateral heterostructures in 2DLPs will be achieved through tailored consecutive ion exchange, which is a powerful tool to manipulate the composition while maintaining the crystal structure, size, and shape of the parent object. TOGETHER is a highly interdisciplinary effort that builds on cutting-edge research in material science with chemistry, physics, and engineering.

Оригинален текст от CORDIS (на английски).

Участници

FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA · GenovaКоординаторИталия