Twisted-Graphene-like Perylene Diimide with Dangling Functional Chromophores as Tunable Small-Molecule Acceptors in Binary-Blend Active Layers of Organic Photovoltaics

2021 ◽  
Author(s):  
Yu-Che Lin ◽  
Chung-Hao Chen ◽  
Nian-Zu She ◽  
Chien-Yao Juan ◽  
Bin Chang ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Perylene Diimide ◽  
Binary Blend ◽  
The Core ◽  
Active Layers ◽  
Twisted Graphene ◽  
End Group

This study presents synthesized small-molecule acceptors having the structure A-D-A´-D-A—where A, A´, and D represent the end group, the core and π-bridge unit, respectively—that form the active layers with the...

scholarly journals Correction: Twisted-graphene-like perylene diimide with dangling functional chromophores as tunable small-molecule acceptors in binary-blend active layers of organic photovoltaics

2021 ◽  
Vol 9 (38) ◽  
pp. 22140-22140
Author(s):  
Yu-Che Lin ◽  
Chung-Hao Chen ◽  
Nian-Zu She ◽  
Chien-Yao Juan ◽  
Bin Chang ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Perylene Diimide ◽  
Binary Blend ◽  
Active Layers ◽  
Twisted Graphene

Correction for ‘Twisted-graphene-like perylene diimide with dangling functional chromophores as tunable small-molecule acceptors in binary-blend active layers of organic photovoltaics’ by Yu-Che Lin et al., J. Mater. Chem. A, 2021, DOI: 10.1039/d1ta05697b.

Engineering the Core Units of Small‐Molecule Acceptors to Enhance the Performance of Organic Photovoltaics

Solar RRL ◽  
2020 ◽  
Vol 4 (10) ◽  
pp. 2000253 ◽  
Author(s):  
Hao-Cheng Wang ◽  
Chung-Hao Chen ◽  
Ren-Hao Li ◽  
Yu-Che Lin ◽  
Cheng-Si Tsao ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
The Core

Efficient solvent-assisted external treatment for planar heterojunction small-molecule organic solar cells

2014 ◽  
Vol 2 (26) ◽  
pp. 10250-10256 ◽  
Author(s):  
Jinhyun Kim ◽  
Ilsu Heo ◽  
Dasom Park ◽  
Sang Jung Ahn ◽  
Sung-Yeon Jang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Active Layers ◽  
Planar Heterojunction

We developed a novel solvent-assisted treatment (SAT) technique to modify the nanomorphology of the planar heterojunction (PHJ) bilayer active layers (ZnPc/C60) of organic photovoltaics (OPVs).

scholarly journals Improving the Photostability of Small-Molecule-Based Organic Photovoltaics by Providing a Charge Percolation Pathway of Crystalline Conjugated Polymer

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2598
Author(s):  
Jihee Kim ◽  
Chang Woo Koh ◽  
Mohammad Afsar Uddin ◽  
Ka Yeon Ryu ◽  
Song-Rim Jang ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Conjugated Polymer ◽  
Bulk Heterojunction ◽  
Hole Mobility ◽  
Chemical Structures ◽  
Active Layers ◽  
Similar Chemical ◽  
A Charge ◽  
Soaking Test

Photostability of small-molecule (SM)-based organic photovoltaics (SM-OPVs) is greatly improved by utilizing a ternary photo-active layer incorporating a small amount of a conjugated polymer (CP). Semi-crystalline poly[(2,5-bis(2-hexyldecyloxy)phenylene)-alt-(5,6-difluoro-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2FBT) and amorphous poly[(2,5-bis(2-decyltetradecyloxy)phenylene)-alt-(5,6-dicyano-4,7-di(thiophen-2-yl)benzo[c][1,2,5]thiadiazole)] (PPDT2CNBT) with similar chemical structures were used for preparing SM:fullerene:CP ternary photo-active layers. The power conversion efficiency (PCE) of the ternary device with PPDT2FBT (Ternary-F) was higher than those of the ternary device with PPDT2CNBT (Ternary-CN) and a binary SM-OPV device (Binary) by 15% and 17%, respectively. The photostability of the SM-OPV was considerably improved by the addition of the crystalline CP, PPDT2FBT. Ternary-F retained 76% of its initial PCE after 1500 h of light soaking, whereas Ternary-CN and Binary retained only 38% and 17% of their initial PCEs, respectively. The electrical and morphological analyses of the SM-OPV devices revealed that the addition of the semi-crystalline CP led to the formation of percolation pathways for charge transport without disturbing the optimized bulk heterojunction morphology. The CP also suppressed trap-assisted recombination and enhanced the hole mobility in Ternary-F. The percolation pathways enabled the hole mobility of Ternary-F to remain constant during the light-soaking test. The photostability of Ternary-CN did not improve because the addition of the amorphous CP inhibited the formation of ordered SM domains.

A privileged ternary blend enabling non-fullerene organic photovoltaics with over 14% efficiency

2020 ◽  
Vol 8 (43) ◽  
pp. 15135-15141
Author(s):  
Jing Yan ◽  
Yuan-Qiu-Qiang Yi ◽  
Jianqi Zhang ◽  
Huanran Feng ◽  
Yanfeng Ma ◽  
...  
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Power Conversion ◽  
Ternary Blend ◽  
Conversion Efficiencies

Two non-fullerene small molecule acceptors, NT-4F and NT-4Cl, were designed and synthesized. Power conversion efficiencies of 11.44% and 14.55% were achieved for NT-4Cl-based binary and ternary devices, respectively.

scholarly journals Bromination and increasing the molecular conjugation length of the non-fullerene small-molecule acceptor based on benzotriazole for efficient organic photovoltaics

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13571-13578
Author(s):  
Na Zhang ◽  
Zhe Li ◽  
Can Zhu ◽  
Hongjian Peng ◽  
Yingping Zou
Keyword(s):  
Small Molecule ◽  
Organic Photovoltaics ◽  
Conjugation Length ◽  
Fused Ring

Two novel non-fullerene acceptors, namely BZIC-2Br and Y9-2Br, were synthesized by employing a ladder-type electron-deficient-based fused ring central with a benzotriazole core.

scholarly journals A latent pigment strategy for robust active layers in solution-processed, complementary organic field-effect transistors

2017 ◽  
Vol 5 (44) ◽  
pp. 11522-11531 ◽  
Author(s):  
Isis Maqueira-Albo ◽  
Giorgio Ernesto Bonacchini ◽  
Giorgio Dell'Erba ◽  
Giuseppina Pace ◽  
Mauro Sassi ◽  
...  
Keyword(s):  
Small Molecule ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Solution Processing ◽  
Organic Field Effect Transistors ◽  
Solution Processed ◽  
Active Layers ◽  
Thermal Cleavage

A latent pigment approach enables solution-processing of small molecule films that are insoluble in aggressive solvents upon thermal cleavage of solubilizing groups.

π-Conjugated polymers with thermocleavable substituents for use as active layers in organic photovoltaics

2011 ◽  
Vol 2 (1) ◽  
pp. 175-180 ◽  
Author(s):  
Jaclyn L. Brusso ◽  
Mathilde R. Lilliedal ◽  
Steven Holdcroft
Keyword(s):  
Conjugated Polymers ◽  
Organic Photovoltaics ◽  
Active Layers
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