Congratulations to Osbel on winning the “SAOT Student Award 2019”!
Osbel has won the SAOT Student Award 2019 in the topic “Optical Materials and Systems” for his work “Discerning Recombination Mechanisms and Ideality Factors through Impedance Analysis of High-Efficiency Perovskite Solar Cells” published in Nano Energy 48 (2018), p. 63-72.
The article presents an exhaustive analysis with original data comprising several types of state-of-the-art perovskite solar cells (PSCs): 3D absorbing layers based on CH3NH3PbI3 or mixed Cs0.1FA0.74MA0.13PbI2.48Br0.39, and a variety of interlayers with 2D perovskite thin capping. To the knowledge of the authors, this work is to date the completest impedance study reported for these optoelectronic devices, additionally illustrating on the most reliable way to extract ideality factors under light condition for PSCs. Key features in the carrier recombination mechanisms were correlated with performance behavior among different types of high-efficiency PSCs. The evidence suggests particularities on specific architectures, mostly in the carrier dynamics at outer interfaces. We think these are important results that clarify critical points for the PSCs operation modes and orient readers and researchers in their investigations.
The award will be conferred during the SAOT summer fair, which will take place July 22, 2019 around 4:30 pm.