Related Experiment Video

Updated: Jan 22, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Published on: January 10, 2017

A 9.16% Power Conversion Efficiency Organic Solar Cell with a Porphyrin Conjugated Polymer Using a Nonfullerene

Loïc Tanguy¹, Prateek Malhotra², Surya Prakash Singh³

¹Department of Chemistry , University of Sherbrooke , 2500 Boulevard de l'Université , Sherbrooke , Quebec J1K 2R1 , Canada.

ACS Applied Materials & Interfaces

|July 12, 2019

Abstract:

A new low-molecular-weight porphyrin-based polymer, PPPyDPP, with pyridine-capped diketopyrrolopyrrole (DPP) has been synthesized, and its optical and electrochemical properties were investigated. The polymer is prepared with a low content of homocoupling units and gives a widely spread absorption from 400 to 900 nm with a narrow optical band gap of 1.46 eV. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels are respectively located at -5.27 and -3.78 eV, respectively. PPPyDPP was used as the electron donor, whereas [6,6]-phenyl-C₇₁-butyric acid methyl ester (PC₇₁BM) and bis(rhodanine)indolo-[3,2-b]-carbazole (ICzRd), a nonfullerene small molecule, were used as acceptors for the fabrication of solution-processed bulk heterojunction polymer solar cells. Overall power conversion efficiencies (PCEs) of 7.31 and 9.16% (record high for porphyrin-containing polymers) were obtained for PC₇₁BM and ICzRd, respectively. A high V_oc of 1.01 V and a low E_loss of 0.45 eV may explain this new record.

Keywords:

low LUMO offset low energy losses nonfullerene acceptor organic solar cell porphyrin pyridine-based diketopyrrolopyrrole

More Related Videos

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light

Published on: September 12, 2014

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation

Published on: March 2, 2021

Related Concept Videos

Gene Conversion

Gene Conversion

Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...

Gene Conversion

Gene Conversion

Polymers

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...

Conjugated Proteins

Conjugated Proteins

Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...

Types of Genetic Transfer Between Organisms

Types of Genetic Transfer Between Organisms

Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.

Conversion of Units

Conversion of Units

Sometimes, there is a need to convert from one unit to another one. For instance, reading a cookbook in which quantities are expressed in units of liters or ounces may require conversion of quantities to cups. Or, when looking up directions on how to get to a location, we may be interested to know how many miles we are going to walk. In this case, we would have to convert units of feet or meters to miles.
The first step in the unit conversion is to list the given units and the units required...

Articles linked to this work by shared authors, journal, and citation graph.

Cyclization Matters: Structure-Property Relationship in π-Conjugated Donor-Acceptor Macrocycle Versus Its Linear Analogue.

Chemistry, an Asian journal·2026

Quinoidal Porphyrinoids as High-Performance Electron Acceptors for Organic Solar Cells: Design, Photophysics, and Device Optimization.

ACS applied materials & interfaces·2026

Molecularly Engineered DBC-Pyrene Hole Transport Material Achieves Dual Passivation-Transport Functionality for Efficient and Robust Perovskite Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2026

Tuning Exciton Dynamics and Energy Transfer in PM6:Y6-Based Ternary Organic Solar Cells via a Noncondensed Acceptor as a Guest Component.

ACS applied materials & interfaces·2026

A Facile Direct C-H Arylation Approach Enables Low-Band Gap Completely Non-Fused Ring Acceptors for High Efficiency Organic Solar Cells.

Small (Weinheim an der Bergstrasse, Germany)·2026

A new benzotriazole-containing wide bandgap D1-D'A-D2 conjugated polymer for air-processed ternary organic solar cells with efficiency approaching 17.

Nanoscale·2026

See all related articles