Effect of Perovskite Thickness on Electroluminescence and Solar Cell Conversion Efficiency.

ABSTRACT: A hybrid organic-inorganic perovskite in a diode structure can lead to multifunctional device phenomena exhibiting both a high power conversion efficiency (PCE) of a solar cell and strong electroluminescence (EL) efficiency. Nonradiative losses in such multifunctional devices lead to an open circuit voltage (V_oc) deficit, which is a limiting factor for pushing the efficiency toward the Shockley-Queisser limit. In this work, we analyze and quantify the radiative limit of V_oc in a perovskite solar cell as a function of its absorber thickness. We correlate PCE and EL efficiency at varying thicknesses to understand the limiting factors for a high V_oc. With a certain increase in perovskite thickness, PCE improves but EL efficiency is comprom

SUBMITTER: Rai M 

PROVIDER: S-EPMC7586387 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature