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Wolfgang Richard Tress

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Publications associées (70)

How far does the defect tolerance of lead-halide perovskites range? The example of Bi impurities introducing efficient recombination centers

Björn Niesen, Simone Meloni, Wolfgang Richard Tress, Juan-Pablo Correa-Baena, Zaiwei Wang, Mozhgan Yavari, Chien-Jen Yang, Firouzeh Ebadi Garjan

One of the key properties of lead-halide perovskites employed in solar cells is the defect tolerance of the materials, in particular regarding intrinsic point defects, which mainly form shallow traps. Considering that high luminescence yields and photovolt ...

Royal Society of Chemistry2019

Performance of perovskite solar cells under simulated temperature-illumination real-world operating conditions

Michael Graetzel, Ulf Anders Hagfeldt, Konrad Domanski, Wolfgang Richard Tress, Essa Awadh R Alharbi, Anand Agarwalla, Brian Irving Carlsen

Since reaching 20% efficiency, research in perovskite photovoltaics has shifted from a race for efficiency to a race for stability. For efficiency, the standard test conditions set the rules for the race. However, the term 'stability' is used very broadly ...

NATURE PUBLISHING GROUP2019

Europium-Doped CsPbI2Br for Stable and Highly Efficient Inorganic Perovskite Solar Cells

Michael Graetzel, Giovanni Dietler, Ulf Anders Hagfeldt, Dominik Józef Kubicki, Wolfgang Richard Tress, Jingshan Luo, David Lyndon Emsley, Jiangtao Zhou, Daniel Prochowicz, Zaiwei Wang, Wanchun Xiang, Seckin Akin

All-inorganic perovskite films hold promise for improving the stability of perovskite solar cells (PSCs). However, the 3D alpha phase of narrow-bandgap inorganic perovskites is thermodynamically unstable at room temperature, limiting the development of hig ...

CELL PRESS2019

How the formation of interfacial charge causes hysteresis in perovskite solar cells

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Silver Hamill Turren Cruz

In this study, we discuss the underlying mechanism of the current-voltage hysteresis in a hybrid lead-halide perovskite solar cell. We have developed a method based on Kelvin probe force microscopy that enables mapping charge redistribution in an operating ...

ROYAL SOC CHEMISTRY2018

Carbon Nanoparticles in High-Performance Perovskite Solar Cells

Konrad Domanski, Nevena Vaskova Marinova, Wolfgang Richard Tress, Michael Saliba, Silver Hamill Turren Cruz, Mozhgan Yavari

2018

Design rules for minimizing voltage losses in high-efficiency organic solar cells

Wolfgang Richard Tress, Jiahuan Zhang

2018

Enhanced charge carrier mobility and lifetime suppress hysteresis and improve efficiency in planar perovskite solar cells

Matthew Thomas Mayer, Wolfgang Richard Tress, Juan-Pablo Correa-Baena, Antonio Abate, Michael Saliba, Silver Hamill Turren Cruz

2018

Interpretation and evolution of open-circuit voltage, recombination, ideality factor and subgap defect states during reversible light-soaking and irreversible degradation of perovskite solar cells

Michael Graetzel, Konrad Domanski, Björn Niesen, Wolfgang Richard Tress, Pankaj Kumar Yadav, Mozhgan Yavari

2018

Correction: Interpretation and evolution of open-circuit voltage, recombination, ideality factor and subgap defect states during reversible light-soaking and irreversible degradation of perovskite solar cells (vol 11, pg 151, 2018)

Michael Graetzel, Konrad Domanski, Björn Niesen, Wolfgang Richard Tress, Pankaj Kumar Yadav, Mozhgan Yavari

2018

Low-Temperature Nb-Doped SnO2 Electron-Selective Contact Yields over 20% Efficiency in Planar Perovskite Solar Cells

Shaik Mohammed Zakeeruddin, Ludmilla Steier, Matthew Thomas Mayer, Wolfgang Richard Tress, Jingshan Luo, Juan-Pablo Correa-Baena, Jiyoun Seo, Elham Halvani Anaraki, Silver Hamill Turren Cruz

2018

Planar Perovskite Solar Cells with High Open-Circuit Voltage Containing a Supramolecular Iron Complex as Hole Transport Material Dopant

Shaik Mohammed Zakeeruddin, Wolfgang Richard Tress, Yasemin Saygili, Juan-Pablo Correa-Baena, Michael Saliba, Marina Freitag, Bartholomeus Wilhelmus Henricus Saes, Silver Hamill Turren Cruz

2018

Poly(ethylene glycol)-[60]Fullerene-Based Materials for Perovskite Solar Cells with Improved Moisture Resistance and Reduced Hysteresis

Shaik Mohammed Zakeeruddin, Amita Ummadisingu, Konrad Domanski, Wolfgang Richard Tress, Michael Saliba, Philippe Jürgen Holzhey, Silver Hamill Turren Cruz

2018

Reducing Surface Recombination by a Poly(4-vinylpyridine) Interlayer in Perovskite Solar Cells with High Open-Circuit Voltage and Efficiency

Wolfgang Richard Tress, Mozhgan Yavari, Mohammad Mahdi Tavakoli

2018

Relating open-circuit voltage losses to the active layer morphology and contact selectivity in organic solar cells

Wolfgang Richard Tress, Wenyan Li, Jialin Wang

Royal Society of Chemistry2018

Systematic investigation of the impact of operation conditions on the degradation behaviour of perovskite solar cells

Konrad Domanski, Wolfgang Richard Tress, Essa Awadh R Alharbi

2018

Interfacial Engineering of Metal Oxides for Highly Stable Halide Perovskite Solar Cells

Nikolaos Vlachopoulos, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Kazuteru Nonomura, Hui-Seon Kim, Zaiwei Wang, Monica Marcela Lira Cantu, Anna Morales Melgares, Haibing Xie

Oxides employed in halide perovskite solar cells (PSCs) have already demonstrated to deliver enhanced stability, low cost, and the ease of fabrication required for the commercialization of the technology. The most stable PSCs configuration, the carbon-base ...

WILEY2018

Addition of adamantylammonium iodide to hole transport layers enables highly efficient and electroluminescent perovskite solar cells

Michael Graetzel, Dominik Józef Kubicki, Wolfgang Richard Tress, David Lyndon Emsley, Mohammad Mahdi Tavakoli, Jovana Milic

The efficiency of perovskite solar cells (PSCs) is currently limited by non-radiative recombination losses. One potential loss channel consists of electrons recombining at the interface with the hole transport layer (HTL). We synthesized adamantylammonium ...

ROYAL SOC CHEMISTRY2018

Mixed cation perovskite solid state solar cell and fabrication thereof

Michael Graetzel, Shaik Mohammed Zakeeruddin, Konrad Domanski, Wolfgang Richard Tress, Jiyoun Seo, Taisuke Matsui, Michael Saliba

A perovskite material including an organic-inorganic perovskite structure of formula (I), AnMX3 (I), n being the number of cation A and an integer >4, A being a monovalent cation selected from inorganic cations Ai and/or from organic cations Ao, M being a ...

2018

High Temperature-Stable Perovskite Solar Cell Based on Low-Cost Carbon Nanotube Hole Contact

Michael Graetzel, Ulf Anders Hagfeldt, Konrad Domanski, Wolfgang Richard Tress, Juan-Pablo Correa-Baena, Antonio Abate, Michael Saliba

Mixed ion perovskite solar cells (PSC) are manufactured with a metal-free hole contact based on press-transferred single-walled carbon nanotube (SWCNT) film infiltrated with 2,2,7,-7-tetrakis(N, N-di-p-methoxyphenylamine)-9,90-spirobifluorene (Spiro-OMeTAD ...

Wiley-Blackwell2017

Promises and challenges of perovskite solar cells

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Juan-Pablo Correa-Baena, Antonio Abate, Michael Saliba

The efficiencies of perovskite solar cells have gone from single digits to a certified 22.1% in a few years' time. At this stage of their development, the key issues concern how to achieve further improvements in efficiency and long-term stability. We revi ...

American Association for the Advancement of Science2017

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