Emissive properties of evaporated perovskites
Henk Bolink a
a Universidad de Valencia - ICMol (Institute of Molecular Science), Catedrático José Beltrán Martinez 2, Paterna, Spain
NIPHO
Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO22)
Online, Spain, 2022 February 14th - 15th
Organizers: Giulia Grancini, Mónica Lira-Cantú and Silvia Colella
Invited Speaker, Henk Bolink, presentation 012
DOI: https://doi.org/10.29363/nanoge.nipho.2022.012
Publication date: 11th November 2021

Perovskite based diodes using both vacuum and solution processed materials will be presented. Our group has developed several perovskite based solar cells, using vacuum based perovskite preparation methods reaching power conversion efficiencies as high as 20 % in a planar single junction device and similar performance in tandem devices.  Driving these devices under forward bias (in LED modus) allows to obtain important device characteristics. The endeavors related to highly luminescent perovskites and their integration into light-emitting diodes will also be commented upon. The integration of perovskite diodes between semitransparent metal electrodes leads to cavity resonance behavior  which can be tuned by the thickness of the perovskite layer. Using photoluminescence as a detection tool we study the effect of interface materials on the light emission properties of different perovskite thin films prepared using vacuum sublimation techniques. Using combination of organic charge transport layers and perovskite emitters the photoluminescence quantum yield is increased.

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