Semi-transparent organic solar cells based on D18 and DEH-X series prepared in different solvents
Abstract
This study investigates the optical and photovoltaic properties of D18 and DEH-X series donor polymers in semi-transparent organic solar cells (ST-OSCs). Active layers were prepared by mixing D18, DEH-3, DEH-10, DEH-20 donor polymers with L8-Bo acceptor in a 1:1 ratio by dissolving them in toluene and chloroform solvent. Absorption spectra, external quantum efficiency (EQE) and photovoltaic parameters, including short-circuit current (Jsc), open-circuit voltage (Voc), energy conversion efficiency (PCE) and average visible transmittance (AVT), were analyzed. The DEH-X series increases light absorption and improves charge transport, which improves the efficiency of the device.
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