Excimer formation effects and trap-assisted charge recombination loss channels in organic solar cells of perylene diimide dimer acceptors DOI

Ranbir Singh,

Min Kim, Jae‐Joon Lee

et al.

Journal of Materials Chemistry C, Journal Year: 2019, Volume and Issue: 8(5), P. 1686 - 1696

Published: Dec. 9, 2019

Perylene diimide (PDI) multiadducts reveal the endemic characteristics of PDI-based OPVs: (a) excimer activation and (b) trap-limited charge recombination losses.

Language: Английский

Precise synthesis of BN embedded perylene diimide oligomers for fast-charging and long-life potassium–organic batteries DOI Creative Commons
Guangwei Shao, Huan Liu,

Li Chen

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(9), P. 3323 - 3329

Published: Jan. 1, 2024

Three BN bridged PDI oligomers are synthesized and the orientations precisely regulated in two trimers. All new compounds show great improvement voltage potential, rate performance cyclic stability potassium–organic batteries.

Language: Английский

Citations

4
High performance PDI based ternary organic solar cells fabricated with non-halogenated solvent DOI
Ping Xia, Mingliang Wu, Sixuan Zhang

et al.

Organic Electronics, Journal Year: 2019, Volume and Issue: 73, P. 205 - 211

Published: March 28, 2019

Language: Английский

Citations

30
Alkynyl-Functionalized Pyrene-Cored Perylene Diimide Electron Acceptors for Efficient Nonfullerene Organic Solar Cells DOI
Feng Tang,

Kaile Wu,

Zhijie Zhou

et al.

ACS Applied Energy Materials, Journal Year: 2019, Volume and Issue: 2(5), P. 3918 - 3926

Published: May 6, 2019

Integrating two or more perylene diimide (PDI) monomers through the single bond ring fusion forming a star-shaped structure is useful strategy for designing high-efficiency electron acceptors. Herein, we implemented an effectual acetylene-linked method of constructing PDI-derivative-based nonfullerene organic solar cells (OSCs). A rigid and conjugated pyrene-cored PDI acceptor, B-4TPDI, has been designed synthesized. The new acceptor manifests favorable morphology, effective π-electron delocalization, complementary absorption when it paired with polymer donors PTB7-Th PBDB-T. It shown that OSCs based on PTB7-Th:B-4TPDI blend film achieved power conversion efficiency (PCE) 7.71% outstanding Jsc 18.13 mA cm–2. More importantly, after adding small amount B-4TPDI into PTB7-Th:ITIC PBDB-T:ITIC system, formed ternary obtained optimized PCE 8.76% 10.93%, respectively. Our work confirms acetylene linkage would be prospective π-spacer excellent

Language: Английский

Citations

30
Tailoring the molecular geometry of polyfluoride perylene diimide acceptors towards efficient organic solar cells DOI
Yan Wang,

Hongbin Zhong,

Yuwen Hong

et al.

Journal of Materials Chemistry C, Journal Year: 2020, Volume and Issue: 8(24), P. 8224 - 8233

Published: Jan. 1, 2020

The molecular geometry of fully fused perylene diimides was tailored by F⋯F repulsion for the optimization photovoltaic performance in organic solar cells.

Language: Английский

Citations

30
Perylenediimides as more than just non-fullerene acceptors: versatile components in organic, hybrid and perovskite solar cells DOI
Nathalie Zink‐Lorre, Enrique Font‐Sanchis, Ángela Sastre‐Santos

et al.

Chemical Communications, Journal Year: 2020, Volume and Issue: 56(27), P. 3824 - 3838

Published: Jan. 1, 2020

The most recent advances in the incorporation of perylenediimides photovoltaic devices are highlighted.

Language: Английский

Citations

28
Star-Shaped Fused-Ring Electron Acceptors with a C3h-Symmetric and Electron-Rich Benzotri(cyclopentadithiophene) Core for Efficient Nonfullerene Organic Solar Cells DOI
Xiaofu Wu, Weijie Wang,

Hao Hang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2019, Volume and Issue: 11(31), P. 28115 - 28124

Published: July 12, 2019

Classical fused-ring electron acceptors (FREAs) with a linear acceptor–donor–acceptor (A–D–A) architecture continuously break records of power conversion efficiency (PCE) in nonfullerene organic solar cells. In contrast, the development star-shaped FREAs still lags behind. Herein, new C3h-symmetric and electron-rich core, benzotri(cyclopentadithiophene) (BTCDT) which central benzo[1,2-b:3,4-b′:5,6-b″]trithiophene fused three outer thiophenes via cyclopentadienyl rings, is synthesized used for construction (BTCDT-IC BTCDT-ICF). Owing to strong electron-donating ability BTCDT unit, both exhibit effective intramolecular charge transfer, leading absorption region 500–800 nm narrow band gaps below 1.70 eV as well suitable highest occupied molecular orbital lowest unoccupied levels. Compared nonfluorinated BTCDT-IC, fluorinated BTCDT-ICF red-shifts peak 688 reduces gap 1.62 eV, induces broader external quantum (EQE) response ranging from 300 800 higher maximum EQE 70% while blending wide polymer donor J61. The J61:the blend film exhibits more phase morphology compared J61:BTCDT-IC film, responsible enhanced value, increased short-circuit current density (JSC), fill factor (FF) cell devices. As result, J61:BTCDT-ICF-based device yields best PCE 8.11% high JSC 16.93 mA cm–2 FF 65.6%, demonstrating that BTCDT-based hold great potential

Language: Английский

Citations

27
Chalcogen‐Fused Perylene Diimides‐Based Nonfullerene Acceptors for High‐Performance Organic Solar Cells: Insight into the Effect of O, S, and Se DOI
Gang Li, Shuai‐Hua Wang, Dandan Li

et al.

Solar RRL, Journal Year: 2019, Volume and Issue: 4(3)

Published: Dec. 4, 2019

Three perylene diimide (PDI) tetramers annulated by oxygen (O), sulfur (S), and selenium (Se), named as SF‐4PDI‐O, SF‐4PDI‐S, SF‐4PDI‐Se, are designed, synthesized, paired with polymeric donor PDBT‐T1 to construct organic solar cells. The heteroatoms' effects on photoelectric properties, chemical geometry, charge transport, active‐layer morphology, photovoltaic performance investigated in detail. These PDI acceptors exhibit a similar absorption profile, whereas the highest occupied molecular orbitals lowest unoccupied simultaneously upshifted when heteroatoms altered from O S Se due gradually weakening electronegativity. Alongside PDBT‐T1, SF‐4PDI‐O achieves an outstanding power conversion efficiency of 8.904% high fill factor 0.706, outcompeting its S‐annulated Se‐annulated counterparts. superiority PDBT‐T1:SF‐4PDI‐O system lies stronger crystallinity, more balanced hole electron mobilities, weaker bimolecular recombination, coupled efficient transfer collection. results shed light invention high‐performance oxygen‐decorated methodology.

Language: Английский

Citations

27
PDI derivatives with functional active position as non-fullerene small molecule acceptors in organic solar cells: From different core linker to various conformation DOI
Mingyang Li, Yin Hang, Guang‐Yan Sun

et al.

Applied Materials Today, Journal Year: 2020, Volume and Issue: 21, P. 100799 - 100799

Published: Aug. 25, 2020

Language: Английский

Citations

27
Ring fusion attenuates the device performance: star-shaped long helical perylene diimide based non-fullerene acceptors DOI
Mingliang Wu,

Jianpeng Yi,

Juan Hu

et al.

Journal of Materials Chemistry C, Journal Year: 2019, Volume and Issue: 7(31), P. 9564 - 9572

Published: Jan. 1, 2019

The past six years have witnessed tremendous progress in the area of perylene diimide (PDI) based non-fullerene organic solar cells (OSCs).

Language: Английский

Citations

26
A perylene diimide electron acceptor with a triphenylamine core: promoting photovoltaic performanceviahot spin-coating DOI
Juan Hu, Xingbin Liu, Kangwei Wang

et al.

Journal of Materials Chemistry C, Journal Year: 2019, Volume and Issue: 8(6), P. 2135 - 2141

Published: Dec. 19, 2019

Hot spin-coating improves the photovoltaic performance of PDI oligomer based OSCs.

Language: Английский

Citations

26