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Efficiency vs. stability: dopant-free hole transporting materials towards stabilized perovskite solar cells

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The performance of perovskite solar cells is highly dependent on the fabrication method; thus, controlling the growth mechanism of perovskite crystals is a promising way towards increasing their efficiency and stability. Herein, a multi-cation halide compo ...

WILEY-V C H VERLAG GMBH2021

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Solar energy is considered clean energy, and its use is predicted to increase in the near future. Most installed units today are crystalline solar cells, but the field is in constant development, and when the first dye sensitized solar cell was published b ...

2020

Zinc Phthalocyanine Conjugated Dimers as Efficient Dopant-Free Hole Transporting Materials in Perovskite Solar Cells

Felix Thomas Eickemeyer, Ulf Anders Hagfeldt, Kazuteru Nonomura, Bowen Yang, Brian Irving Carlsen, Marco Alejandro Ruiz Preciado, Natalie Flores Diaz, Desiré Molina Alcaide

Four ZnPc-dimers with 2,5-thienyl (ZnPc-th-ZnPc 1), 2,7-fluorenyl (ZnPc-flu-ZnPc 2), 3,6-bisthienylldiketopyrrolopyrrole (ZnPc-DPP-ZnPc 3) and 1,4-phenyl (ZnPc-p-ZnPc 4) bridges have been studied as dopant-free hole transporting materials (HTMs) in perovsk ...

WILEY-V C H VERLAG GMBH2020

High-humidity processed perovskite solar cells

Mohammad Khaja Nazeeruddin

Perovskite solar cells (PSCs) are considered the next-in-line technology in the solar industry. This technology can reduce the cost of solar energy to an unprecedented level given their remarkably high efficiency and ease of manufacturing. Hitherto, many s ...

2020

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In the last decade, perovskite solar cells have been considered a promising and burgeoning technology for solar energy conversion with a power conversion efficiency currently exceeding 24%. However, although perovskite solar cells have achieved high power ...

ROYAL SOC CHEMISTRY2019

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The photovoltaic perovskite, methylammonium lead triiodide [CH3NH3PbI3 (MAPbI(3))], is one of the most efficient materials for solar energy conversion. Various kinds of chemical and physical modifications have been applied to MAPbI(3) towards better unders ...

International Union of Crystallography (IUCr)2019

A sequential condensation route as a versatile platform for low cost and efficient hole transport materials in perovskite solar cells

Mohammad Khaja Nazeeruddin

In an effort to diminish the cost of perovskite solar cells (PSCs) with regard to hole transport materials (HTMs), we employed an easily attainable condensation route to synthesize a cheap and efficient HTM. Using a newly engineered small organic molecule, ...

2019

Air-Stable n-i-p Planar Perovskite Solar Cells Using Nickel Oxide Nanocrystals as Sole Hole-Transporting Material

Mohammad Khaja Nazeeruddin, Cristina Roldán Carmona

Development of low-cost solution processable inorganic hole-transporting materials (HTM) in n-i-p perovskite solar cells (PSCs) is still a challenge toward stable and cost-effective devices. Here, we report the synthesis, surface functionalization, and app ...

2019

Molecularly Engineered Hole Transporting Materials for High Performance Perovskite Solar Cells

Kasparas Rakstys

Perovskite solar cells have rapidly revolutionized the photovoltaic research showing an im-pressively dynamic progress on power conversion efficiency from 3.8 to 22% in only several years, a record for a nascent technology. Furthermore, inexpensive precurs ...

EPFL2018

Molecular Engineering Towards High Efficiency Perovskite Solar Cells

Jiyoun Seo

High energy demands of our society stimulate the development of sustainable tech-nologies, such as those based on solar energy conversion or photovoltaics. Perovskite solar cells (PSCs) are an emerging photovoltaic technology that consist of the perov-skit ...

EPFL2018