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 contributionsto 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 theprinting uniformity as well as the charge extraction efficiency of electrodes.

Autore Pugliese

• Persano Anna

Tutti gli autori

• A. Perulli; S. Lattante; A. Persano; A. Cola; M. Anni

Titolo volume/Rivista

Synthetic metals

Anno di pubblicazione

2019

ISSN

0379-6779

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile