Research Blogs
Five Perovskite Questions Setfos Can Answer From Your Own Measurements
Perovskite papers often describe a result without explaining it. Non-radiative recombination. Hysteresis artifact. Retained 90% of PCE. Five questions where fitting a physical model to your own data identifies the mechanism.
Space Charge Limited Current (SCLC) and Charge Carrier Mobility in Organic Semiconductors
Discover how charge carrier mobility is measured in organic and perovskite semiconductors. This guide explains the Space Charge Limited Current (SCLC) method, with its key advantages, limitations, and applications.
Quantification of trap states by thermally stimulated current in thin film solar cells
The performance of light-emitting (LEDs) and photovoltaic (PV) devices depends on the quality of the photoactive semiconductor material. The unintentional introduction of defects in the semiconductor material due to material impurities or during the fabrication process causes the deviation from optimal performance.
These defects are referred to as trap states, or in short “traps”, which are energetic states within the bandgap of a semiconductor. In general, traps can occur due to material impurities (in the bulk) or at the interfaces between layers of different materials.
In the following blog post, we will present how to characterize the trap states with the technique called thermally stimulated current (TSC). We also propose a method to reliably interpret the TSC results based on drift-diffusion simulations.
Analysis of TADF OLED degradation by combining advanced characterization and simulation
Despite the success of OLED displays in commercial products, there are still issues regarding the efficiency and lifetime of these devices. It is of utmost importance to better understand the device physics in general and the origins of degradation in these OLEDs.
In this blog post, we show you an example for which we used our tools Paios and Setfos to understand device limitations and analyze the degradation mechanisms in state-of-the-art sky blue TADF OLED devices.