Zinc Phthalocyanines As Light Harvesters for SnO-based Solar Cells: a Case Study

Overview

Journal Sci Rep

Specialty Science

Date 2020 Jan 26

PMID 31980734

Citations 3

Authors

Riccardo Milan

Gurpreet Singh Selopal

Marco Cavazzini

Simonetta Orlandi

Rita Boaretto

Stefano Caramori

Isabella Concina

Gianluca Pozzi

Affiliations

Soon will be listed here.

Abstract

SnO nanoparticles have been synthesized and used as electron transport material (ETM) in dye sensitized solar cells (DSSCs), featuring two peripherally substituted push-pull zinc phthalocyanines (ZnPcs) bearing electron donating diphenylamine substituents and carboxylic acid anchoring groups as light harvesters. These complexes were designed on the base of previous computational studies suggesting that the integration of secondary amines as donor groups in the structure of unsymmetrical ZnPcs might enhance photovoltaics performances of DSSCs. In the case of TiO-based devices, this hypothesis has been recently questioned by experimental results. Herein we show that the same holds for SnO, despite the optimal matching of the optoelectronic characteristics of the synthesized nanoparticles and diphenylamino-substituted ZnPcs, thus confirming that other parameters heavily affect the solar cells performances and should be carefully taken into account when designing materials for photovoltaic applications.

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