H2020Индивидуална стипендия2020–2023

PeTSoC · Lightweight and Flexible All-Perovskite Triple-junction Solar Cells

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

Период: 2020-10-15 → 2023-06-30
Финансиране от ЕС: 212 934 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

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Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Lightweight and Flexible All-Perovskite Triple-junction Solar Cells

Climate change is a global concern with solar energy as a vital renewable resource. The solar industry relies on crystalline Si cells, limited to 29.4% efficiency due to the Shockley-Queisser limit and Auger recombination (PERC cells reach ~22%). Next-gen multijunction solar cells, though promising, demand expensive III-V materials and complex fabrication. Consequently, there's growing interest in low-cost, highly efficient, tunable bandgap organic-inorganic metal halide perovskite solar cells (PSCs) for multijunction applications. Perovskites have an ABX3 structure: A-sites contain organic cations (e.g., MA or FA) or inorganic elements (e.g., Cs), B-sites typically contain elements like Pb or Sn, and X-sites house halides (I or Br). Altering perovskite composition allows for bandgap tunability (1.2-3.0 eV), crucial for multijunction cells. While perovskite-perovskite tandem solar cells have been intensively researched, perovskite-perovskite-perovskite (PPP) triple-junction solar cells, with higher theoretical efficiency, remain limited in studies. Thermal co-evaporation, a scalable technique, enables versatile, uniform perovskite thin-film production over large surfaces without common toxic solvents (DMF or chlorobenzene), making it attractive to industry. Although full thermal co-evaporation is widely used for single-junctions, it has not been applied to triple-junction all-PSCs. Overall, the project explored thermal co-evaporation (up to 4 sources) to fabricate PSCs with varied bandgaps (1.5-2.3 eV). It advanced materials science, enabling 4D charge carrier tracking via confocal microscopy and new real-time in-situ transmission electron microscopy sample prep techniques. Successful demonstration of monolithic PPP triple-junction solar cells, produced through thermal co-evaporation, paves the way for future lightweight, flexible multijunction solar cells. These innovations have commercial potential, including (1) charging electronic smartphones/devices, (2) powering vehicles and drones/aircraft, (3) wearable textiles/backpacks, (4) smart windows, and more.

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

Цел на проекта

Solar energy is one of the most important renewable energy sources of the 21st century. For solar cells, the most important aspects for commercialization are power conversion efficiency and cost which can be combined into a €/W metric. Today, over 90% of the global solar industry is comprised of single-junction crystalline silicon (c-Si) solar cells, however, c-Si solar cells have some limitations. The first is their non-mechanically flexible nature and second, their single-junction limit of efficiency which can be surpassed by multijunction technology. Lead-halide perovskites are generating substantial scientific and industrial interest because they are low-cost, highly efficient and bandgap tunable, key criteria for multijunction solar cells. Furthermore, perovskites can be deposited via thermal co-evaporation meaning that the devices in this project, can be made from start-to-finish entirely from industrially attractive vacuum deposition techniques. Unlike conventional c-Si, perovskites are a thin-film technology, which means they can be made into lightweight and flexible solar cells with a high power-to-weight ratio. Thus, they have additional applications for (1) portable electronic devices including smartphones and displays, (2) vehicles, drones and aircraft, (3) wearable textiles, and more. The project draws from two distinct areas of photovoltaics research, specifically lightweight and flexibility with high-efficiency achieved by multijunction technology, allowing it to compete competitively with crystalline silicon in conventional solar energy generation and niche applications. The experienced researcher will be joining StranksLab to build a strong fundamental photophysical understanding of thermally co-evaporated perovskite layers via state-of-the-art spectroscopy tools to target the development of a lightweight and flexible all-perovskite triple-junction solar cell with an efficiency >30%.

Оригинален текст от CORDIS (на английски).

Участници

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE · CAMBRIDGEКоординаторОбединеното кралство