R
Rokas Gegevičius
Publications - 14
Citations - 243
Rokas Gegevičius is an academic researcher. The author has contributed to research in topics: Perovskite (structure) & Charge carrier. The author has an hindex of 6, co-authored 13 publications receiving 126 citations.
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Journal ArticleDOI
Reduced Efficiency Roll-Off and Improved Stability of Mixed 2D/3D Perovskite Light Emitting Diodes by Balancing Charge Injection
Azhar Fakharuddin,Weiming Qiu,Guillaume Croes,Andrius Devižis,Rokas Gegevičius,A. Vakhnin,Cedric Rolin,Jan Genoe,Robert Gehlhaar,Andrey Kadashchuk,Andrey Kadashchuk,Vidmantas Gulbinas,Paul Heremans +12 more
Journal ArticleDOI
Molecular Design and Operational Stability: Toward Stable 3D/2D Perovskite Interlayers.
Sanghyun Paek,Sanghyun Paek,Cristina Roldán-Carmona,Kyung Taek Cho,Kyung Taek Cho,Marius Franckevičius,Hobeom Kim,Hiroyuke Kanda,Nikita Drigo,Kun-Han Lin,Mingyuan Pei,Rokas Gegevičius,Hyung-Joong Yun,Hoichang Yang,Pascal Schouwink,Clémence Corminboeuf,Abdullah M. Asiri,Mohammad Khaja Nazeeruddin +17 more
TL;DR: A highly hydrophobic cation is designed and a 2D perovskite with reinforced intermolecular interactions is engineered, providing improved passivation at the interface that reduces charge recombination and enhances cell stability compared with benchmark 2D systems.
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Doped but Stable: Spirobisacridine Hole Transporting Materials for Hysteresis-Free and Stable Perovskite Solar Cells.
Nikita Drigo,Cristina Roldán-Carmona,Marius Franckevičius,Kun-Han Lin,Rokas Gegevičius,Hobeom Kim,Pascal Schouwink,Albertus Adrian Sutanto,Selina Olthof,Muhammad Sohail,Klaus Meerholz,Vidmantas Gulbinas,Clémence Corminboeuf,Sanghyun Paek,Mohammad Khaja Nazeeruddin +14 more
TL;DR: SBA-based com-pounds are potent candidates for a design of new HTMs for PSCs with improved longevity and hysteresis-free and demonstrate good operational stability, despite being doped as spiro-MeOTAD.
Journal ArticleDOI
Interfacial passivation of wide-bandgap perovskite solar cells and tandem solar cells
Rui Xia,Yibo Xu,Bingbing Chen,Hiroyuki Kanda,Marius Franckevičius,Rokas Gegevičius,Shubo Wang,Yifeng Chen,Daming Chen,Jianning Ding,Ningyi Yuan,Ying Zhao,Cristina Roldán-Carmona,Xiaodan Zhang,Paul J. Dyson,Mohammad Khaja Nazeeruddin +15 more
TL;DR: In this article, a stable wide-bandgap (∼1.7 eV) perovskite/silicon tandem solar cells were constructed using a combination of vacuum assisted solution processing (VASP) and interfacial passivation.
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Electroluminescence Dynamics in Perovskite Solar Cells Reveals Giant Overshoot Effect
TL;DR: The generation of a giant overshoot pulse suggests a simple way to achieve high pulsed luminescence intensity with a low current density, which opens new prospects toward optical gain and implementation of electrically pumped lasers.