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Your search keyword '"Cola, Adriano"' showing total 7 results
Start Over Author "Cola, Adriano" Publisher elsevier bv
7 results on '"Cola, Adriano"'

7. On the homogeneity of the external quantum efficiency in a free OPV roll-to-roll flexible solar module

Author

S. Lattante, Marco Anni, Adriano Cola, Andrea Perulli, Anna Persano, Perulli, Andrea, Lattante, Sandro, Persano, Anna, Cola, Adriano, and Anni, Marco

Subjects
Materials science, Condensed Matter Physic, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Roll-to-roll processing, Solar module, Homogeneity (physics), Materials Chemistry, Electronic, Optical Material, business.industry, Mechanical Engineering, Photovoltaic system, Metals and Alloys, organic solar cells, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, Mechanics of Materials, Organic solar cell, Electrode, Optoelectronics, Quantum efficiency, Peak value, Confocal spectroscopy, 0210 nano-technology, business
Abstract

We present a microscopic characterization of an organic photovoltaic (OPV) module demonstrator, fabricated within the “freeOPV” project. The local properties of the module are discussed on different length scales, from the submicrometric to the centimeters one, inferring the module structure and the origin of the different contributions to the optical and photoelectrical spatial inhomogeneity. We show that the local external quantum efficiency (EQE) in the individual cells of the module exhibits typical variations within 6–8% of the peak value over about 0.4 mm2. Larger variations are observed when comparing different cells across the module surface, with differences in the EQE peak values up to 1.6 times. Our results suggest that the roll-to-roll OPV module performance can be further improved by optimizing the printing uniformity as well as the charge extraction efficiency of electrodes.

Published
2019

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