Control and Characterization of Organic Solar Cell Morphology Through Variable-Pressure Solvent Vapor Annealing DOI

Derek Zomerman,

Jessica Kong, Seth M. McAfee

и другие.

ACS Applied Energy Materials, Год журнала: 2018, Номер unknown

Опубликована: Сен. 16, 2018

Solvent vapor annealing (SVA) of organic photovoltaics (OPVs) has become an important postdeposition treatment, but current OPV SVA methods are difficult to reproduce and neither tunable nor scalable. Herein, it is shown that a variable-pressure solvent (VP-SVA) system can be used reproducibly tunably anneal active layers produce highly controlled film morphologies. We show VP-SVA useful not only for the well-studied P3HT:PC61BM model system, also modern based on nonfullerene acceptors. Phase separation material crystallinity precisely tuned by controlling concentration during process, as evidenced photoinduced force microscopy (PiFM) grazing incidence wide-angle X-ray scattering (GIWAXS). The results overannealing occurs at saturated pressures, highlighting importance technique.

Язык: Английский

Perylene derivatives for solar cells and energy harvesting: a review of materials, challenges and advances DOI
Andréia G. Macedo,

Leticia Patricio Christopholi,

Anderson Emanuel Ximim Gavim

и другие.

Journal of Materials Science Materials in Electronics, Год журнала: 2019, Номер 30(17), С. 15803 - 15824

Опубликована: Авг. 21, 2019

Язык: Английский

Процитировано

37

Advances in applying C–H functionalization and naturally sourced building blocks in organic semiconductor synthesis DOI Creative Commons
Liwen Xing, Christine K. Luscombe

Journal of Materials Chemistry C, Год журнала: 2021, Номер 9(46), С. 16391 - 16409

Опубликована: Янв. 1, 2021

This review presents the recent advances in synthesis of organic semiconductors using C–H functionalization and naturally sourced building blocks to facilitate large-scale production commercialization semiconductors.

Язык: Английский

Процитировано

28

A universal nonfullerene electron acceptor matching with different band-gap polymer donors for high-performance polymer solar cells DOI
Zhenghui Luo, Guanghao Li, Wei Gao

и другие.

Journal of Materials Chemistry A, Год журнала: 2018, Номер 6(16), С. 6874 - 6881

Опубликована: Янв. 1, 2018

A new nonfullerene electron acceptor of m-MeIC was designed and synthesized, which is effective with different band-gap polymer donors, including wide J71, medium PBDB-T low PCE-10.

Язык: Английский

Процитировано

36

Donor or Acceptor? How Selection of the Rylene Imide End Cap Impacts the Polarity of π-Conjugated Molecules for Organic Electronics DOI
Abby‐Jo Payne, Nicole A. Rice, Seth M. McAfee

и другие.

ACS Applied Energy Materials, Год журнала: 2018, Номер 1(9), С. 4906 - 4916

Опубликована: Авг. 7, 2018

Three molecular semiconductors are compared and evaluated in organic field-effect transistors solar cells. The molecules constructed from the dyes diketopyrrolopyrrole (DPP), perylene diimide (PDI), N-(alkyl)benzothioxanthene-3,4-dicarboximide (BTXI). compound PDI–DPP–PDI (1) has previously been reported used as a nonfullerene acceptor. compounds PDI–DPP–BTXI (2) BTXI–DPP–BTXI (3) were synthesized using direct (hetero)arylation methods fully identified NMR spectroscopy mass spectrometry. All three characterized UV–visible spectroscopy, cyclic voltammetry, density functional theory calculations. Increasing BTXI content results progressive destabilization of electronic energy levels. For all compounds, no significant changes optical absorption spectra observed when to combination constituent spectra. Compound 1 exhibits electron transport characteristics functions an acceptor cells that produce power conversion efficiency 5%. 2 unbalanced (electron transporting dominate) ambipolar charge performs better 3 balanced best donor cell devices. ability tune charge-carrier these panchromatic through synthesis offers distinctive way create span range device performance metrics.

Язык: Английский

Процитировано

36

Dithienophosphole-based molecular electron acceptors constructed using direct (hetero)arylation cross-coupling methods DOI
Thomas A. Welsh, Audrey Laventure, Thomas Baumgartner

и другие.

Journal of Materials Chemistry C, Год журнала: 2018, Номер 6(8), С. 2148 - 2154

Опубликована: Янв. 1, 2018

Herein we report on the first successful coupling of dithienophosphole (S2PO) functional building block with three types heteroaryl end caps using direct (hetero)arylation C–H bond functionalization methods.

Язык: Английский

Процитировано

33

Direct (Hetero)Arylation for the Synthesis of Molecular Materials: Coupling Thieno[3,4-c]pyrrole-4,6-dione with Perylene Diimide to Yield Novel Non-Fullerene Acceptors for Organic Solar Cells DOI Creative Commons
Thomas A. Welsh, Audrey Laventure, Gregory C. Welch

и другие.

Molecules, Год журнала: 2018, Номер 23(4), С. 931 - 931

Опубликована: Апрель 17, 2018

Herein we report on the synthesis of an N-annulated perylene diimide (PDI) disubstituted thieno[3,4-c]pyrrole-4,6-dione (TPD) molecular acceptor (PDI–TPD–PDI) by direct heteroarylation (DHA) methods. Three sets DHA conditions that explore effects solvent, temperature, and catalyst were employed to find optimal for two PDI–TPD–PDI derivatives. We then selected one use as a non-fullerene in organic solar cell devices with donor polymer PBDB-T. Active layer bulk-heterojunction blends modified using several post-deposition treatments, including thermal annealing, solvent vapour high boiling additives. It was found active layers cast from o-dichlorobenzene 3% v/v diphenylether additive yielded films adequate phase separation, subsequently gave best performance, power conversion efficiencies greater than 3%.

Язык: Английский

Процитировано

33

A direct comparison of monomeric vs. dimeric and non-annulated vs. N-annulated perylene diimide electron acceptors for organic photovoltaics DOI
Maryam Nazari, Edward Cieplechowicz, Thomas A. Welsh

и другие.

New Journal of Chemistry, Год журнала: 2019, Номер 43(13), С. 5187 - 5195

Опубликована: Янв. 1, 2019

A systematic structure–property-function evaluation of four structurally related organic photoactive materials based on the perylene diimide chromophore.

Язык: Английский

Процитировано

31

Acid dyeing for green solvent processing of solvent resistant semiconducting organic thin films DOI

Cayley R. Harding,

Jonathan Cann, Audrey Laventure

и другие.

Materials Horizons, Год журнала: 2020, Номер 7(11), С. 2959 - 2969

Опубликована: Янв. 1, 2020

The alcohol and water-based processing of a perylene diimide (PDI) organic semiconductor into large area solvent resistant films is reported.

Язык: Английский

Процитировано

28

Diketopyrrolopyrrole-based single molecules in photovoltaic technologies DOI
Desiré Molina, Maria João Álvaro‐Martins, Ángela Sastre‐Santos

и другие.

Journal of Materials Chemistry C, Год журнала: 2021, Номер 9(45), С. 16078 - 16109

Опубликована: Янв. 1, 2021

Diketopyrrolopyrroles stand out due to their chemical and optoelectronic properties. Diketopyrrolopyrrole-single molecules applied in organic, dye-sensitized perovskite solar cells are presented give clues for future molecular optimizations.

Язык: Английский

Процитировано

26

Toward a Universally Compatible Non‐Fullerene Acceptor: Multi‐Gram Synthesis, Solvent Vapor Annealing Optimization, and BDT‐Based Polymer Screening DOI
Seth M. McAfee, Abby‐Jo Payne, Arthur D. Hendsbee

и другие.

Solar RRL, Год журнала: 2018, Номер 2(9)

Опубликована: Июнь 29, 2018

To highlight the benefits of organic dye PDI‐DPP‐PDI for use in fullerene‐free solar cells, herein is demonstrated how this material can meet scalability demands through a multigram scale direct heteroarylation coupling reaction, and performance post‐deposition solvent vapor annealing treatment. A method has been utilized to screen comprehensive selection ethereal, aromatic, chlorinated solvents. Upon transitioning these eight alternative solvents, significant increase over chloroform standard noted all with tetrahydrofuran o ‐dichlorobenzene leading highest devices post‐treatment. This trend, including an open‐circuit voltage greater than 1 V proved be consistent four different BDT‐based donor polymers, PTB7‐Th, PBDB‐T, J61, TTFQx‐T1. The performing are achieved PTB7‐Th TTFQx‐T1, PCEs reaching 6.2 5.7%, respectively, when combined interfacial modification ZnO electron‐transport layer.

Язык: Английский

Процитировано

32