Benzothiadiazole Based Cascade Material to Boost the Performance of Inverted Ternary Organic Solar Cells

Miron Krassas, Christos Polyzoidis, Pavlos Tzourmpakis, Dimitriοs M. Kosmidis, George Viskadouros, Nikolaos Kornilios, George Charalambidis, Vasilis Nikolaou, Athanassios G. Coutsolelos, Konstantinos Petridis, Minas M. Stylianakis and Emmanuel Kymakis
Additional contact information
Miron Krassas: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
Christos Polyzoidis: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
Pavlos Tzourmpakis: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
Dimitriοs M. Kosmidis: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
George Viskadouros: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
Nikolaos Kornilios: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
George Charalambidis: Laboratory of Bioinorganic Chemistry, Chemistry Department, University of Crete, Voutes Campus, 71003 Heraklion, Crete, Greece
Vasilis Nikolaou: Laboratory of Bioinorganic Chemistry, Chemistry Department, University of Crete, Voutes Campus, 71003 Heraklion, Crete, Greece
Athanassios G. Coutsolelos: Laboratory of Bioinorganic Chemistry, Chemistry Department, University of Crete, Voutes Campus, 71003 Heraklion, Crete, Greece
Konstantinos Petridis: Department of Electronic Engineering, Hellenic Mediterranean University, 73132 Chania, Crete, Greece
Minas M. Stylianakis: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece
Emmanuel Kymakis: Department of Electrical & Computer Engineering, Hellenic Mediterranean University, 71410 Heraklion, Crete, Greece

Energies, 2020, vol. 13, issue 2, 1-12

Abstract: A conjugated, ladder-type multi-fused ring 4,7-dithienbenzothiadiazole:thiophene derivative, named as compound ‘T’, was for the first time incorporated, within the PTB7:PC 71 BM photoactive layer for inverted ternary organic solar cells (TOSCs) realization. The effective energy level offset caused by compound T between the polymeric donor and fullerene acceptor materials, as well as its resulting potential as electron cascade material contribute to an enhanced exciton dissociation, electron transfer facilitator and thus improved overall photovoltaic performance. The engineering optimization of the inverted TOSC, ITO/PFN/PTB7:Compound T(5% v/v):PC 71 BM/MoO 3 /Al, resulted in an overall power conversion efficiency (PCE) of 8.34%, with a short-circuit current density ( J sc ) of 16.75 mA cm −2 , open-circuit voltage ( V oc ) of 0.74 V and a fill factor (FF) of 68.1%, under AM1.5G illumination. This photovoltaic performance was improved by approximately 12% with respect to the control binary device.

Keywords: organic solar cells; ternary blend; bulk heterojunction; cascade effect; charge transfer; additive; benzothiadiazole; small molecule (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/2/450/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/2/450/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:2:p:450-:d:309787

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().