Publications de Elham Halvani Anaraki

Interfacial and bulk properties of hole transporting materials in perovskite solar cells: spiro-MeTAD versus spiro-OMeTAD

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ulf Anders Hagfeldt, Elham Halvani Anaraki, Mona Shasti

Two spiro-MeTAD compounds (1 and 2) were synthesized, characterized by experimental and quantum mechanical methods, and used as hole transporting materials (HTMs) in perovskite solar cells (PSCs). The new compounds differ from spiro-OMeTAD only by the pres ...

Royal Society of Chemistry2020

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

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

2018

Identifying and suppressing interfacial recombination to achieve high open-circuit voltage in perovskite solar cells

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Michael Saliba, Antonio Abate, Konrad Domanski, Juan-Pablo Correa-Baena, Silver Hamill Turren Cruz, Elham Halvani Anaraki

With close to 100% internal quantum efficiency over the absorption spectrum, photocurrents in perovskite solar cells (PSCs) are at their practical limits. It is therefore imperative to improve open-circuit voltages (VOC) in order to go beyond the current 1 ...

Royal Society of Chemistry2017

Nondestructive Probing of Perovskite Silicon Tandem Solar Cells Using Multiwavelength Photoluminescence Mapping

Michael Graetzel, Ulf Anders Hagfeldt, Michael Saliba, Juan-Pablo Correa-Baena, Elham Halvani Anaraki

In this paper, spatially resolved photoluminescence (PL) spectroscopy with various excitation wavelengths is presented as a nondestructive and versatile technique providing access to the individual subcells of multijunction solar cells. This method is demo ...

Ieee-Inst Electrical Electronics Engineers Inc2017

Unreacted PbI2 as a Double-Edged Sword for Enhancing the Performance of Perovskite Solar Cells

Jacques-Edouard Moser, Kurt Schenk, Wolfgang Richard Tress, Ulf Anders Hagfeldt, Joël Teuscher, Juan-Pablo Correa-Baena, Marine Eva Fedora Bouduban, Tor Jesper Jacobsson, Elham Halvani Anaraki

Lead halide perovskites have over the past few years attracted considerable interest as photo absorbers in PV applications with record efficiencies now reaching 22%. It has recently been found that not only the composition but also the precise stoichiometr ...

American Chemical Society2016

Highly efficient and stable planar perovskite solar cells by solution-processed tin oxide

Michael Graetzel, Ulf Anders Hagfeldt, Wolfgang Richard Tress, Michael Saliba, Antonio Abate, Konrad Domanski, Juan-Pablo Correa-Baena, Ludmilla Steier, Taisuke Matsui, Elham Halvani Anaraki

Perovskite solar cells (PSCs) are one of the most promising lab-scale technologies to deliver inexpensive solar electricity. Low-temperature planar PSCs are particularly suited for large-scale manufacturing. Here, we propose a simple, solution-processed te ...

Royal Society of Chemistry2016