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001046031 005__ 20250909202257.0
001046031 0247_ $$2doi$$a10.29363/nanoge.hopv.2025.078
001046031 037__ $$aFZJ-2025-03671
001046031 1001_ $$0P:(DE-Juel1)187003$$aMajewski, Martin$$b0$$ufzj
001046031 1112_ $$a12º nternational Conference on Hybrid and Organic Photovoltaics$$cRoma$$d2025-05-12 - 2025-05-14$$wItaly
001046031 245__ $$aSimulation of the impact of processing conditions for solution-processed thick perovskite layers
001046031 260__ $$bFUNDACIO DE LA COMUNITAT VALENCIANA SCITO València$$c2025
001046031 29510 $$aProceedings of the International Conference on Hybrid and Organic Photovoltaics - FUNDACIO DE LA COMUNITAT VALENCIANA SCITO València, 2025. - ISBN - doi:10.29363/nanoge.hopv.2025.078
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001046031 520__ $$aFabricating thick (1000 nm) solution-processed perovskite layers is expected to increase the efficiency of carbon-contact-based solar cells compared to thinner (500 nm) films. However, increasing only the deposited layer thickness often results in buried voids inside the dry film. This is detrimental to the efficiency of the device. Recently, we have developed a theoretical framework based on Phase Field simulations[1]. It is capable of describing the main physical processes determining the morphology: evaporation, diffusion, spontaneous nucleation, crystal growth, and advection[2]. With the help of the simulations, it is possible to explain why voids form in the film. The crystals nucleate at random spots inside the liquid film. The movement of the condensed-vapor interface, due to evaporation, leads to an agglomeration of the crystals at the film surface. The crystals block further evaporation and the remaining solvent is the origin of the buried voids inside the dry film. We explain how adding seeds on the substrate before coating the thick film can prevent this. In this case, processing conditions have to be modified compared to standard operating procedures for thin films. The theoretical expectations can be verified experimentally, leading to a performance improvement of the devices.
001046031 536__ $$0G:(DE-HGF)POF4-1214$$a1214 - Modules, stability, performance and specific applications (POF4-121)$$cPOF4-121$$fPOF IV$$x0
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001046031 7001_ $$0P:(DE-HGF)0$$aQiu, Shudi$$b1
001046031 7001_ $$0P:(DE-Juel1)173965$$aRonsin, Olivier J.$$b2$$ufzj
001046031 7001_ $$0P:(DE-Juel1)200304$$aDu, Tian$$b3$$ufzj
001046031 7001_ $$0P:(DE-Juel1)190193$$aEgelhaaf, Hans-J.$$b4
001046031 7001_ $$0P:(DE-Juel1)176427$$aBrabec, Christoph$$b5
001046031 7001_ $$0P:(DE-Juel1)167472$$aHarting, Jens$$b6$$ufzj
001046031 773__ $$a10.29363/nanoge.hopv.2025.078
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001046031 9131_ $$0G:(DE-HGF)POF4-121$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1214$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vPhotovoltaik und Windenergie$$x0
001046031 9141_ $$y2025
001046031 920__ $$lyes
001046031 9201_ $$0I:(DE-Juel1)IET-2-20140314$$kIET-2$$lHelmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien$$x0
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