1 research outputs found
Origin of Open-Circuit Voltage Loss in Polymer Solar Cells and Perovskite Solar Cells
Herein,
the open-circuit voltage (<i>V</i><sub>OC</sub>) loss in
both polymer solar cells and perovskite solar cells is quantitatively
analyzed by measuring the temperature dependence of <i>V</i><sub>OC</sub> to discuss the difference in the primary loss mechanism
of <i>V</i><sub>OC</sub> between them. As a result, the
photon energy loss for polymer solar cells is in the range of about
0.7–1.4 eV, which is ascribed to temperature-independent and
-dependent loss mechanisms, while that for perovskite solar cells
is as small as about 0.5 eV, which is ascribed to a temperature-dependent
loss mechanism. This difference is attributed to the different charge
generation and recombination mechanisms between the two devices. The
potential strategies for the improvement of <i>V</i><sub>OC</sub> in both solar cells are further discussed on the basis of
the experimental data