Themed collection Editor’s Choice: Organic Photovoltaics

33 items
Open Access Editorial

Editors’ choice collection on organic photovoltaics: back in the game

Associate Editors Yana Vaynzof and Renaud Demadrille highlight recent research in organic photovoltaics in this themed collection (rsc.li/OrganicPhotovoltaics).

Graphical abstract: Editors’ choice collection on organic photovoltaics: back in the game
From the themed collection: Editor’s Choice: Organic Photovoltaics
Editorial

Editors’ choice collection on organic photovoltaics: back in the game

Associate Editors Yana Vaynzof and Renaud Demadrille highlight recent research in organic photovoltaics in this themed collection (rsc.li/OrganicPhotovoltaics).

Graphical abstract: Editors’ choice collection on organic photovoltaics: back in the game
From the themed collection: Editor’s Choice: Organic Photovoltaics
Review Article

Recent advances of polymer acceptors for high-performance organic solar cells

Recent advances in polymer acceptors that focus on structure–property relationships, which may provide guidance for photovoltaic materials, were systematically summarized.

Graphical abstract: Recent advances of polymer acceptors for high-performance organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Review Article

Design of organic small molecules for photovoltaic application with high open-circuit voltage (Voc)

An efficient approach to improve Voc values for OSCs through molecular design and modification of photovoltaic materials was summarized and discussed.

Graphical abstract: Design of organic small molecules for photovoltaic application with high open-circuit voltage (Voc)
From the themed collection: Editor’s Choice: Organic Photovoltaics
Communication

Non-fullerene organic solar cells based on a BODIPY-polymer as electron donor with high photocurrent

Non-fullerene organic solar cells based on a BODIPY-polymer as electron donor provided a high photocurrent above 21 mA cm−2 and a record efficiency of 9.86%.

Graphical abstract: Non-fullerene organic solar cells based on a BODIPY-polymer as electron donor with high photocurrent
From the themed collection: Editor’s Choice: Organic Photovoltaics
Communication

Improving the performance of near infrared binary polymer solar cells by adding a second non-fullerene intermediate band-gap acceptor

A series of ternary OSCs were fabricated with PBDB-T-2Cl:IXIC-4Cl as a host system and IT-4F as the third component. The optimal ternary device achieved an excellent PCE of 15.0%.

Graphical abstract: Improving the performance of near infrared binary polymer solar cells by adding a second non-fullerene intermediate band-gap acceptor
From the themed collection: Editor’s Choice: Organic Photovoltaics
Communication

Naphthalene core-based noncovalently fused-ring electron acceptors: effects of linkage positions on photovoltaic performances

The structural variation by just changing the linkage positions affects the molecular configuration, absorption, packing, charge transport and photovoltaic performance.

Graphical abstract: Naphthalene core-based noncovalently fused-ring electron acceptors: effects of linkage positions on photovoltaic performances
From the themed collection: Editor’s Choice: Organic Photovoltaics
Communication

A tetrachlorinated molecular non-fullerene acceptor for high performance near-IR absorbing organic solar cells

Installation of chlorine atoms into the ITIC non-fullerene acceptor enables low energy photon harvesting generating high photocurrent in OSCs when paired with PBDB-T. The active layer morphology is greatly influenced by solvent additives.

Graphical abstract: A tetrachlorinated molecular non-fullerene acceptor for high performance near-IR absorbing organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Communication

A nonfullerene acceptor utilizing a novel asymmetric multifused-ring core unit for highly efficient organic solar cells

In this communication, a novel asymmetric ladder-type thiophene-phenylene-thieno[3,2-b]thiophene-fused building block TPTT and the corresponding asymmetric nonfullerene acceptor TPTT-IC were reported for the first time.

Graphical abstract: A nonfullerene acceptor utilizing a novel asymmetric multifused-ring core unit for highly efficient organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Efficient all-polymer solar cells based on a narrow-bandgap polymer acceptor

A new narrow-bandgap polymerized small molecule acceptor, namely PG1, was designed and synthesized. The optimal all-polymer solar cells (all-PSCs) based PBDB-T:PG1 achieved an outstanding PCE of 11.5% with a high Voc of 0.94 V.

Graphical abstract: Efficient all-polymer solar cells based on a narrow-bandgap polymer acceptor
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Effects of polymer crystallinity on non-fullerene acceptor based organic solar cell photostability

Organic solar cell shows significantly different degradation rate with different donor polymer crystallinity, even the donors and acceptors are all photostable.

Graphical abstract: Effects of polymer crystallinity on non-fullerene acceptor based organic solar cell photostability
From the themed collection: Editor’s Choice: Organic Photovoltaics
Open Access Paper

Structure dependent photostability of ITIC and ITIC-4F

ITIC photostability is markedly dependent on the specific polymorph phase and end-group decoration. Fluorination grants stronger chemical stability upon degradation.

Graphical abstract: Structure dependent photostability of ITIC and ITIC-4F
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Design of narrow bandgap non-fullerene acceptors for photovoltaic applications and investigation of non-geminate recombination dynamics

A new narrow bandgap non-fullerene electron acceptor was designed, synthesized, and characterized for near-infrared organic photovoltaics.

Graphical abstract: Design of narrow bandgap non-fullerene acceptors for photovoltaic applications and investigation of non-geminate recombination dynamics
From the themed collection: Editor’s Choice: Organic Photovoltaics
Open Access Paper

Diketopyrrolopyrrole linked porphyrin dimers for visible-near-infrared photoresponsive nonfullerene organic solar cells

The binding of a porphyrin dimer donor (ETDPP-2P) and a non-fullerene acceptor IT-M leads to a visible-near-infrared photoresponse in all small molecule organic solar cells with a power conversion efficiency of 5.69%.

Graphical abstract: Diketopyrrolopyrrole linked porphyrin dimers for visible-near-infrared photoresponsive nonfullerene organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

High open-circuit voltage roll-to-roll compatible processed organic photovoltaics

Materials design strategies for high open circuit voltage organic photovoltaics.

Graphical abstract: High open-circuit voltage roll-to-roll compatible processed organic photovoltaics
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Quantifying Voc loss induced by alkyl pendants of acceptors in organic solar cells

In the organic photovoltaic community, extensive efforts have been made in proposing resolutions for depressing Voc loss related to the molecular structures and optoelectronic properties of materials in bulk heterojunctions.

Graphical abstract: Quantifying Voc loss induced by alkyl pendants of acceptors in organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Open Access Paper

Comparison of fluorene, silafluorene and carbazole as linkers in perylene monoimide based non-fullerene acceptors

Perylene monoimide based non-fullerene acceptors with fluorene, silafluorene and carbazole as linkers were synthesized and compared regarding their structural, optical, electronic and photovoltaic properties.

Graphical abstract: Comparison of fluorene, silafluorene and carbazole as linkers in perylene monoimide based non-fullerene acceptors
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Enhanced efficiency and stability of nonfullerene ternary polymer solar cells based on a spontaneously assembled active layer: the role of a high mobility small molecular electron acceptor

Introducing a medium bandgap electron acceptor into the PTB7-Th:COi8DFIC solar cell increases both thermal stability and PCE without external treatments.

Graphical abstract: Enhanced efficiency and stability of nonfullerene ternary polymer solar cells based on a spontaneously assembled active layer: the role of a high mobility small molecular electron acceptor
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Isomerizing thieno[3,4-b]thiophene-based near-infrared non-fullerene acceptors towards efficient organic solar cells

The photovoltaic properties of near-infrared non-fullerene acceptors are improved by isomerizing the linkage positions of thieno[3,4-b]thiophene.

Graphical abstract: Isomerizing thieno[3,4-b]thiophene-based near-infrared non-fullerene acceptors towards efficient organic solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Side chain engineering of polymer acceptors for all-polymer solar cells with enhanced efficiency

Side chain engineering of fused bithiophene imide oligomers yields a new series of random copolymers with tunable polymer chain packing and film morphology. When applied in all-polymer solar cells, an 8.32% efficiency is obtained.

Graphical abstract: Side chain engineering of polymer acceptors for all-polymer solar cells with enhanced efficiency
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Optimization of processing solvent and film morphology to achieve efficient non-fullerene polymer solar cells processed in air

Efficient non-fullerene polymer solar cells based on P2F-EHp and ITIC derivatives were achieved by blade-coating under the ambient air conditions.

Graphical abstract: Optimization of processing solvent and film morphology to achieve efficient non-fullerene polymer solar cells processed in air
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Halogenation on benzo[1,2-b:4,5-b′]difuran polymers for solvent additive-free non-fullerene polymer solar cells with efficiency exceeding 11%

In this work, two novel two-dimensional (2D) benzo[1,2-b:4,5-b′]difuran (BDF)-based wide bandgap polymers were designed using a halogenation strategy by incorporating fluorine- and chlorine-substituted conjugated side chains, respectively.

Graphical abstract: Halogenation on benzo[1,2-b:4,5-b′]difuran polymers for solvent additive-free non-fullerene polymer solar cells with efficiency exceeding 11%
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

An A–D–D–A-type non-fullerene small-molecule acceptor with strong near-infrared absorption for high performance polymer solar cells

An A–D–D–A-type near-infrared non-fullerene small-molecule acceptor IDT2-DFIC with indacenodithiophene–indacenodithiophene (IDT2) as donating core and 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (2FIC) as electron withdrawing end groups has been synthesized.

Graphical abstract: An A–D–D–A-type non-fullerene small-molecule acceptor with strong near-infrared absorption for high performance polymer solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Enhancing phase separation with a conformation-locked nonfullerene acceptor for over 14.4% efficiency solar cells

The molecular backbone design and sidechain control are both considered for fused-ring electron acceptors to fine-tune the morphology and miscibility of the active layers for organic solar cells.

Graphical abstract: Enhancing phase separation with a conformation-locked nonfullerene acceptor for over 14.4% efficiency solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Molecular origin of efficient hole transfer from non-fullerene acceptors: insights from first-principles calculations

Our results suggest the conditions to promote an efficient hole transfer from acceptors induced by molecular orbital delocalization.

Graphical abstract: Molecular origin of efficient hole transfer from non-fullerene acceptors: insights from first-principles calculations
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

High-efficiency ternary nonfullerene organic solar cells fabricated with a near infrared acceptor enhancing exciton utilization and extending absorption

Incorporating an infrared nonfullerene acceptor O6T-4F enhances the exciton utilization and extends the absorption, leading to an increased PCE of organic solar cells.

Graphical abstract: High-efficiency ternary nonfullerene organic solar cells fabricated with a near infrared acceptor enhancing exciton utilization and extending absorption
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Small energy loss in ternary organic solar cells with a blend of cascade energy levels: two fullerene-free acceptors as the electron acceptor

Fullerene-free organic solar cells (OSCs) were fabricated using a blend of wide bandgap donor PBDB-T and ultranarrow bandgap acceptor IEICO-4F as binary photoactive layers.

Graphical abstract: Small energy loss in ternary organic solar cells with a blend of cascade energy levels: two fullerene-free acceptors as the electron acceptor
From the themed collection: Editor’s Choice: Organic Photovoltaics
Open Access Paper

Improved photostability in ternary blend organic solar cells: the role of [70]PCBM

Identifying the best ratios of components in ternary blend polymer solar cell could lead to more photostable organic solar cells.

Graphical abstract: Improved photostability in ternary blend organic solar cells: the role of [70]PCBM
From the themed collection: Recent Open Access Articles
Paper

Diketopyrrolopyrrole-based terpolymers with tunable broad band absorption for fullerene and fullerene-free polymer solar cells

Fullerene and fullerene-free organic photovoltaics.

Graphical abstract: Diketopyrrolopyrrole-based terpolymers with tunable broad band absorption for fullerene and fullerene-free polymer solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

High-efficiency non-fullerene polymer solar cell fabricated by a simple process using new conjugated terpolymers

A series of conjugated terpolymers bearing weak and strong accepting units were synthesized. Their optical and electrochemical properties and device performance can be easily tuned by controlling molar ratio of two accepting units.

Graphical abstract: High-efficiency non-fullerene polymer solar cell fabricated by a simple process using new conjugated terpolymers
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

On the understanding of energetic disorder, charge recombination and voltage losses in all-polymer solar cells

Based on comparisons of two all-polymer solar cells based on PTzBI:N2200 and PNDN-T:N2200 blends, factors limiting the device characteristics are investigated.

Graphical abstract: On the understanding of energetic disorder, charge recombination and voltage losses in all-polymer solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Effect of a methyl thiophene-3-carboxylate bridge in an indacenodithiophene-based acceptor–donor–acceptor-type molecule on the performance of non-fullerene polymer solar cells

Fullerene-free polymer solar cells with the as-cast blend film of IDT-3MT and PBDB-T exhibited a high PCE of 8.40%.

Graphical abstract: Effect of a methyl thiophene-3-carboxylate bridge in an indacenodithiophene-based acceptor–donor–acceptor-type molecule on the performance of non-fullerene polymer solar cells
From the themed collection: Editor’s Choice: Organic Photovoltaics
Paper

Efficient device engineering for inverted non-fullerene organic solar cells with low energy loss

We have systematically investigated the synergistic effect of thermal annealing and interlayer modification on improving the performance of inverted non-fullerene organic solar cells.

Graphical abstract: Efficient device engineering for inverted non-fullerene organic solar cells with low energy loss
From the themed collection: Editor’s Choice: Organic Photovoltaics
33 items

About this collection

Associate Editors for Journal of Materials Chemistry C and Materials Advances, Renaud Demadrille (Interdisciplinary Research Institute of Grenoble, France) and Yana Vaynzof (Technical University of Dresden, Germany), have selected a few outstanding recent manuscripts on organic photovoltaics for this Editor’s Choice Collection. In order to highlight developments in organic photovoltaics, this online collection includes recent manuscripts from Journal of Materials Chemistry C and Materials Advances on the topic.

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