Hao Hu

TL;DR: In this article, the authors compare device characteristics derived from standard current density-voltage measurements with stabilized values obtained from an adaptive tracking of the maximum power point and the open circuit voltage as well as characteristics extracted from time resolved current density voltage measurements, and propose a measurement protocol for a reliable characterisation which is easy to implement and has been tested on varying perovskite ÃÂÃÂsolar cells fabricated in different laboratories.

TL;DR: It is demonstrated, with P3HT as model system, that thickness dependent reflection behavior can lead to misinterpretation of UV/Vis spectra within the H-aggregate model and photoluminescence spectra are found to be a reliable basis for characterization of polymer aggregation.

TL;DR: This work employs blends of methylammonium lead iodide perovskites with an insulating polymer that offer the possibility to tune the grain size in order to obtain a fundamental understanding of the photoresponse at the microscopic level and provides, for the first time, spatially resolved details of the microstructures in such blend systems.

TL;DR: The effects of different processing conditions, especially the influence of the C60 top layer on the device performance are described, which leads to highly efficient and reproducible results.

TL;DR: In this article, the perovskite solar efficiencies exceeding 23%, more investigations are needed to understand and enhance the open-circuit voltage (Voc) for further efficiency gains.