A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells

Impressive advancements in solution‐processed bulk heterojunction (BHJ) solar cells have been driven to a large extent by the rational design of conjugated polymers as photoactive donors. These achievements have been obtained without paying much attention to green metrics parameters (such as E facto...

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Autores principales:	Marta Penconi, Gabriele Bianchi, Andrea Nitti, Alberto Savoini, Chiara Carbonera, Dario Pasini, Riccardo Po, Silvia Luzzati
Formato:	article
Lenguaje:	EN
Publicado:	Wiley-VCH 2021
Materias:	benzodithiophene donor polymers organic photovoltaics ternary solar cells terthiophene Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/b80b231546dd4a0fac48c10360814a48
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spelling	oai:doaj.org-article:b80b231546dd4a0fac48c10360814a482021-11-04T09:03:08ZA Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells2699-941210.1002/aesr.202100069https://doaj.org/article/b80b231546dd4a0fac48c10360814a482021-11-01T00:00:00Zhttps://doi.org/10.1002/aesr.202100069https://doaj.org/toc/2699-9412Impressive advancements in solution‐processed bulk heterojunction (BHJ) solar cells have been driven to a large extent by the rational design of conjugated polymers as photoactive donors. These achievements have been obtained without paying much attention to green metrics parameters (such as E factor) and to the increasing synthetic complexity (SC), which is a bottleneck for industrial scalability. In this context, a novel donor copolymer (PBDT3T) based on benzodithiophene and terthiophene building blocks with ester functionalities is synthesized. The 26‐fold‐reduced E factor for the benzodithiophene monomer synthesis and the SC index of 24 for PBDT3T, much lower compared with benchmark donor polymers, provide a hint for good scalability, sustainability, and low costs. PBDT3T features a relatively wide optical bandgap and a deep highest occupied molecular orbital (HOMO), meeting the requirements for suitable donor material in both fullerene and nonfullerene‐based solar cells. PBDT3T is studied in binary and ternary blend, using PC71BM and ITIC as acceptors. The best performances are obtained in the ternary blend devices, reaching power conversion efficiency (PCE) values of 7.14%. Trade‐off considerations between PCE and SC make PBDT3T promising on an industrial perspective.Marta PenconiGabriele BianchiAndrea NittiAlberto SavoiniChiara CarboneraDario PasiniRiccardo PoSilvia LuzzatiWiley-VCHarticlebenzodithiophenedonor polymersorganic photovoltaicsternary solar cellsterthiopheneEnvironmental technology. Sanitary engineeringTD1-1066Renewable energy sourcesTJ807-830ENAdvanced Energy & Sustainability Research, Vol 2, Iss 11, Pp n/a-n/a (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	benzodithiophene donor polymers organic photovoltaics ternary solar cells terthiophene Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830
spellingShingle	benzodithiophene donor polymers organic photovoltaics ternary solar cells terthiophene Environmental technology. Sanitary engineering TD1-1066 Renewable energy sources TJ807-830 Marta Penconi Gabriele Bianchi Andrea Nitti Alberto Savoini Chiara Carbonera Dario Pasini Riccardo Po Silvia Luzzati A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
description	Impressive advancements in solution‐processed bulk heterojunction (BHJ) solar cells have been driven to a large extent by the rational design of conjugated polymers as photoactive donors. These achievements have been obtained without paying much attention to green metrics parameters (such as E factor) and to the increasing synthetic complexity (SC), which is a bottleneck for industrial scalability. In this context, a novel donor copolymer (PBDT3T) based on benzodithiophene and terthiophene building blocks with ester functionalities is synthesized. The 26‐fold‐reduced E factor for the benzodithiophene monomer synthesis and the SC index of 24 for PBDT3T, much lower compared with benchmark donor polymers, provide a hint for good scalability, sustainability, and low costs. PBDT3T features a relatively wide optical bandgap and a deep highest occupied molecular orbital (HOMO), meeting the requirements for suitable donor material in both fullerene and nonfullerene‐based solar cells. PBDT3T is studied in binary and ternary blend, using PC71BM and ITIC as acceptors. The best performances are obtained in the ternary blend devices, reaching power conversion efficiency (PCE) values of 7.14%. Trade‐off considerations between PCE and SC make PBDT3T promising on an industrial perspective.
format	article
author	Marta Penconi Gabriele Bianchi Andrea Nitti Alberto Savoini Chiara Carbonera Dario Pasini Riccardo Po Silvia Luzzati
author_facet	Marta Penconi Gabriele Bianchi Andrea Nitti Alberto Savoini Chiara Carbonera Dario Pasini Riccardo Po Silvia Luzzati
author_sort	Marta Penconi
title	A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
title_short	A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
title_full	A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
title_fullStr	A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
title_full_unstemmed	A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells
title_sort	donor polymer with a good compromise between efficiency and sustainability for organic solar cells
publisher	Wiley-VCH
publishDate	2021
url	https://doaj.org/article/b80b231546dd4a0fac48c10360814a48
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A Donor Polymer with a Good Compromise between Efficiency and Sustainability for Organic Solar Cells

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