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Regulating phase separation and molecular stacking by introducing siloxane to small-molecule donors enables high efficiency all-small-molecule organic solar cells

Journal Article · · Energy & Environmental Science
DOI:https://doi.org/10.1039/d2ee00726f· OSTI ID:1982245
 [1];  [2];  [1];  [3];  [1];  [1];  [4];  [3];  [3];  [1];  [4];  [1];  [1]
  1. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China
  2. College of Textiles & Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China
  3. CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, P. R. China
  4. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, P. R. China

Siloxane with low surface tension can regulate the intermolecular interactions, and optimize the phase separation morphology and molecule stacking, finally contributing to an excellent PCE of 16.4% with small energy loss for ASM-OSCs.

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1982245
Journal Information:
Energy & Environmental Science, Vol. 15, Issue 7; ISSN 1754-5692
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English

References (55)

Non-fullerene acceptors for organic solar cells journal February 2018
Fused-Ring Electron Acceptors for Photovoltaics and Beyond journal December 2020
An Electron Acceptor Challenging Fullerenes for Efficient Polymer Solar Cells journal January 2015
New Phase for Organic Solar Cell Research: Emergence of Y-Series Electron Acceptors and Their Perspectives journal April 2020
Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor journal March 2018
Single-Junction Organic Solar Cell with over 15% Efficiency Using Fused-Ring Acceptor with Electron-Deficient Core journal April 2019
Non-fullerene acceptors with branched side chains and improved molecular packing to exceed 18% efficiency in organic solar cells journal May 2021
Nonfullerene All-Small-Molecule Organic Solar Cells journal May 2019
Approaching 16% Efficiency in All-Small-Molecule Organic Solar Cells Based on Ternary Strategy with a Highly Crystalline Acceptor journal October 2020
17% efficiency all-small-molecule organic solar cells enabled by nanoscale phase separation with a hierarchical branched structure journal January 2021
Recent progress on all‐small molecule organic solar cells using small‐molecule nonfullerene acceptors journal November 2020
15.3% efficiency all-small-molecule organic solar cells enabled by symmetric phenyl substitution journal March 2020
Improve the Performance of the All-Small-Molecule Nonfullerene Organic Solar Cells through Enhancing the Crystallinity of Acceptors journal January 2018
High Miscibility Compatible with Ordered Molecular Packing Enables an Excellent Efficiency of 16.2% in All‐Small‐Molecule Organic Solar Cells journal December 2021
Solvent Annealing Enables 15.39% Efficiency All‐Small‐Molecule Solar Cells through Improved Molecule Interconnection and Reduced Non‐Radiative Loss journal April 2021
Rational compatibility in a ternary matrix enables all-small-molecule organic solar cells with over 16% efficiency journal January 2021
Introduction of Siloxane-Terminated Side Chains into Semiconducting Polymers To Tune Phase Separation with Nonfullerene Acceptor for Polymer Solar Cells journal January 2020
Some Interesting Things about Polysiloxanes journal December 2004
Siloxane-Terminated Solubilizing Side Chains: Bringing Conjugated Polymer Backbones Closer and Boosting Hole Mobilities in Thin-Film Transistors journal December 2011
Siloxane Side Chains: A Universal Tool for Practical Applications of Organic Field-Effect Transistors journal May 2016
Low band gap conjugated polymers combining siloxane-terminated side chains and alkyl side chains: side-chain engineering achieving a large active layer processing window for PCE > 10% in polymer solar cells journal January 2017
Dramatically different photovoltaic effect induced by siloxane-terminated combinatory side chain in polymer solar cells journal October 2019
Introducing Siloxane-Terminated Side Chains in Small Molecular Donors for All-Small-Molecule Organic Solar Cells: Modulated Molecular Orientation and Enhanced Efficiency journal July 2021
Synthesis and photovoltaic performance of a non-fullerene acceptor comprising siloxane-terminated alkoxyl side chain journal April 2021
Asymmetric Siloxane Functional Side Chains Enable High-Performance Donor Copolymers for Photovoltaic Applications journal March 2020
Modulation of terminal alkyl chain length enables over 15% efficiency in small-molecule organic solar cells journal June 2021
Over 15% efficiency all-small-molecule organic solar cells enabled by a C-shaped small molecule donor with tailorable asymmetric backbone journal March 2021
Optimization of active layer morphology by small-molecule donor design enables over 15% efficiency in small-molecule organic solar cells journal January 2021
15.3% Efficiency All‐Small‐Molecule Organic Solar Cells Achieved by a Locally Asymmetric F, Cl Disubstitution Strategy journal February 2021
15.71% Efficiency All‐Small‐Molecule Organic Solar Cells Based on Low‐Cost Synthesized Donor Molecules journal December 2021
15.8% efficiency binary all-small-molecule organic solar cells enabled by a selenophene substituted sematic liquid crystalline donor journal January 2021
A molecular nematic liquid crystalline material for high-performance organic photovoltaics journal January 2015
A Low Band Gap, Solution Processable Oligothiophene with a Diketopyrrolopyrrole Core for Use in Organic Solar Cells journal July 2008
Polymer solar cells with enhanced fill factors journal August 2013
Calculation of interfacial tension in polymer systems journal January 1971
Panchromatic Sequentially Cast Ternary Polymer Solar Cells journal November 2016
Ternary organic solar cells: compatibility controls for morphology evolution of active layers journal January 2017
Melting Point Depression and Kinetic Effects of Cooling on Crystallization in Poly(vinylidene fluoride)-Poly(methyl methacrylate) Mixtures journal November 1975
All-small-molecule organic solar cells with over 14% efficiency by optimizing hierarchical morphologies journal November 2019
Moving Alkyl‐Chain Branching Point Induced a Hierarchical Morphology for Efficient All‐Small‐Molecule Organic Solar Cells journal September 2020
n-Type Water/Alcohol-Soluble Naphthalene Diimide-Based Conjugated Polymers for High-Performance Polymer Solar Cells journal February 2016
Photocurrent Generation in Polymer-Fullerene Bulk Heterojunctions journal November 2004
Recombination in polymer-fullerene bulk heterojunction solar cells journal December 2010
Detailed Balance Limit of Efficiency of p‐n Junction Solar Cells journal March 1961
Quantifying Losses in Open-Circuit Voltage in Solution-Processable Solar Cells journal July 2015
Electronic properties of small molecule-diketopyrrolopyrrole derivatives and a correlation with the open circuit voltage in organic solar cells journal June 2012
Relationship of Ionization Potential and Oxidation Potential of Organic Semiconductor Films Used in Photovoltaics journal June 2018
Design rules for minimizing voltage losses in high-efficiency organic solar cells journal July 2018
Exciton-Dissociation and Charge-Recombination Processes in Pentacene/C 60 Solar Cells: Theoretical Insight into the Impact of Interface Geometry journal November 2009
A universal Urbach rule for disordered organic semiconductors journal June 2021
Selenium Heterocyclic Electron Acceptor with Small Urbach Energy for As-Cast High-Performance Organic Solar Cells journal October 2020
Reducing Voltage Losses in the A-DA′D-A Acceptor-Based Organic Solar Cells journal September 2020
Achieving Balanced Crystallization Kinetics of Donor and Acceptor by Sequential‐Blade Coated Double Bulk Heterojunction Organic Solar Cells journal June 2020
Critical Role of Vertical Phase Separation in Small-Molecule Organic Solar Cells journal March 2018
Patterned Blade Coating Strategy Enables the Enhanced Device Reproducibility and Optimized Morphology of Organic Solar Cells journal March 2021