Degradation Analysis of Encapsulated and Nonencapsulated TiO/PTB7:PCBM/VO Solar Cells under Ambient Conditions via Impedance Spectroscopy.

Inverted organic cells are promising devices for sustainable and low-cost future electric generation. In this work, we present the degradation mechanisms studied in ITO/TiO/PTB7:PCBM/VO/Ag inverted organic solar cells (iOSCs) by impedance spectroscopy (IS). Measurements were performed on encapsulated (controlled environment) and nonencapsulated (ambient condition) cells following their temporal evolution under AM1.

Characterization of nanostructured ZnO thin films deposited through vacuum evaporation.

This work presents a novel technique to deposit ZnO thin films through a metal vacuum evaporation technique using colloidal nanoparticles (average size of 30 nm), which were synthesized by our research group, as source. These thin films had a thickness between 45 and 123 nm as measured by profilometry. XRD patterns of the deposited thin films were obtained.