Investigating Carbon Nanotubes

When we think of the long term future for perovskite solar cells, there are basically two strategies. The first is to enhance their efficiency by making tandem solar cells. The second is to create flexible devices with roll to roll technologies, as industrials currently do with organic solar cells. This latter strategy has an enormous […]

Defect tolerance within halide perovskite

The properties of crystalline semiconductors, and particularly those giving rise to the photoelectric effect, are mainly due to the presence of defects inside a crystalline lattice. Two weeks ago, at the annual Perovskite Solar Cells and Optoelectronics Conference (#PSCO17) in Oxford, one of the main topic developed was the exceptional defect tolerance found in the […]

Exploring Excitonic Binding Energy in Perovskites

As usually described on this blog, perovskite solar cells represent a topic that constantly needs optimization. Many studies try to bring new elements for improving their stability or their efficiency. Some month ago, Dr Arman M. Soufiani from UNSW (Sydney) published an interesting article: ‘Impact of microstructure on the electron-hole interaction in lead halide perovskites’ […]

Tuning Quandum Dot Solar Cells

In July, Dr Ahmad R. Kirmani published a very interesting article the day he defended his PhD. He has worked with Quantum Dot Solar Cells at the King Abdullah University of Science and Technology (Saudi Arabia) while publishing the article I invited him to talk about: Molecular Doping of the Hole-Transporting Layer for Efficient, Single-Step-Deposited Colloidal […]

Engineering interfaces with gold nanoparticles

When discussing interfaces issues with perovskite solar cells, Prof. Iván Mora-Seró from Institute of Advanced Materials, Castelló (Spain) is one of the scientists with the stronger background. Some month ago, he explored the use of gold nanoparticles at the interface between the electron sensitive contact and the perovskite material TiO₂ in perovskite solar cells. Eliminating […]

Stay positive about stability of perovskite solar cells!

Some weeks ago, I had a conversation of deep interest with Dr Tomas Leijtens from Stanford University. Tomas has important research expertise in perovskite stability. Thus he wrote some month ago a review about it: Towards enabling stable lead halide perovskite solar cells; the interplay between structural, environmental, and thermal stability. The point to understand […]

Fullerene, a versatile material for PV applications

Some of my readers know me for my tweets about #OrganicElectronics. In this field, fullerene and its derivative have been for a long time used in many applications for their conductive properties. Last December, I was allured by a paper about the use of fullerene for perovskite interlayers: Cross-Linkable Fullerene Derivatives for Solution-Processed n–i–p Perovskite […]