Publication
Auto-passivation of crystal defects in hybrid imidazolium/methylammonium lead iodide films by fumigation with methylamine affords high efficiency perovskite solar cells
Related publications (63)
A thermotropic liquid crystal enables efficient and stable perovskite solar modules
Mohammad Khaja Nazeeruddin, Yong Ding, Bin Ding, Cheng Liu, Jian Xu
Perovskite solar cells have seen impressive progress in performance and stability, yet maintaining efficiency while scaling area remains a challenge. Here we find that additives commonly used to passivate large-area perovskite films often co-precipitate du ...
Berlin2024Vapor Deposition of Perovskite Solar Cells
Quentin Jean-Marie Armand Guesnay
Thanks to the continuous improvement of crystalline silicon (c-Si) solar cells, largely dominating the market, photovoltaic electricity is nowadays the cheapest source of energy on the market. Yet, solar energy is far from being completely harvested, as t ...
EPFL2023Efficient and Stable Perovskite Solar Cells by Tailoring of Interfaces
Mohammad Khaja Nazeeruddin, Jianxing Xia, Muhammad Sohail
The interface tailoring is crucial for the efficiency and stability of Perovskite Solar Cells (PSCs). The reported interface engineering primarily focuses on the energy level turning and trap state passivation to improve the photovoltaic performance of PSC ...
WILEY-V C H VERLAG GMBH2023Visualizing Interfacial Energy Offset and Defects in Efficient 2D/3D Heterojunction Perovskite Solar Cells and Modules
Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Yong Ding, Bin Ding
Currently, the full potential of perovskite solar cells (PSCs) is limited by chargecarrier recombination owing to imperfect passivation methods. Here, the recombination loss mechanisms owing to the interfacial energy offset and defects are quantified. The ...
WILEY-V C H VERLAG GMBH2023Compositional and interfacial optimization for enhancement of perovskite solar cells performance
Non-renewable sources are responsible for most of the overall greenhouse gas emissions, the development of sustainable energy sources is of prime importance to mitigate the negative effects of climate change. Among renewable sources, solar energy is one of ...
EPFL2022Revealing fundamentals of charge extraction in photovoltaic devices through potentiostatic photoluminescence imaging
Michael Graetzel, Shaik Mohammed Zakeeruddin, Yuhang Liu, Dmitry Bogachuk
The photocurrent density-voltage (J(V)) curve is the fundamental characteristic to assess opto-electronic devices, in particular solar cells. However, it only yields information on the performance inte-grated over the entire active device area. Here, a met ...
ELSEVIER2022Magnetic Resonance and Hyperpolarization Methods for Perovskite Photovoltaics
Solid-state NMR can provide information about the atomic-level microstructure and dynamics in materials as it directly probes the local nuclear environment. In the last decade, halide perovskites have drawn intense interest because of their intriguing opto ...
EPFL2022Molecular Electronic Study of Spiro-[cyclopenta[1,2-b:5,4-b ']dithiophene-4,9 '-fluorene] Derivatives: Route to Decent Hole-Transporting Materials
Mohammad Khaja Nazeeruddin, Peng Gao, Michael Saliba, Wei Li
Spiro-type molecules have been extensively explored as hole-transporting materials (HTMs) in perovskite solar cells (PSCs). However, a closer look at the rule of design of such molecules is missing, and a combined experimental and theoretical study is need ...
AMER CHEMICAL SOC2022Facet Engineering for Stable, Efficient Perovskite Solar Cells
Facet engineering is an important strategy for tuning the physical, chemical, and electronic properties of a crystal surface, and it also provides an effective route to improve the device performance in many fields. Complex crystal structures with rough mo ...
AMER CHEMICAL SOC2022Passivating Defects of Perovskite Solar Cells with Functional Donor-Acceptor-Donor Type Hole Transporting Materials
Mohammad Khaja Nazeeruddin, Yi Zhang, Jianxing Xia, Kasparas Rakstys
In this study, a series of donor-acceptor-donor (D-A-D) type small molecules based on the fluorene and diphenylethenyl enamine units, which are distinguished by different acceptors, as holetransporting materials (HTMs) for perovskite solar cells is present ...
WILEY-V C H VERLAG GMBH2022