A5101146205- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
Australian National University
2024
A controlled amount of excess lead iodide (PbI2) in the perovskite precursor has been widely used solar cells (PSCs) to enhance device's performance by passivating defects. However,...
Abstract Luminescent coupling (LC) is a key phenomenon in monolithic tandem solar cells. This study presents nondestructive technique to quantitatively evaluate the LC effect, addressing gap existing predictions made by optical modeling. The method involves measuring ratio of photons emitted from high bandgap top cell that escape through rear, contributing additional current bottom cell, and those escaping front side cell. findings indicate analyzed perovskite/silicon cells, more than 85%...
The contributions of each subcell to the total photoluminescence (PL) spectrum a monolithic perovskite/silicon tandem solar cell are distinguished using variable wavelength excitation laser source. In results, strong overlap PL is shown, originating from sub‐bandgap region perovskite top with emission silicon bottom cell, even near‐infrared wavelengths. Consequently, an at least 815 nm required for dominant signal and no longer than 750 needed in investigated cell. Moreover, shoulder almost...