Related Experiment Video
Updated: Jun 20, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer
Published on: January 10, 2017
Phenyl-Alkyl Inner Side Chain-Based Polymerized Small-Molecule Acceptor with Improved Miscibility and Crystallinity
Zheng Tao1, Qianbo Deng1, Dinglong Feng2
1Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, P. R. China.
None:
All-polymer solar cells (all-PSCs) are regarded as potential candidates for practical applications. However, their performance lags behind that of devices based on small-molecule acceptors. A critical challenge lies in achieving appropriate donor-acceptor miscibility and high molecular ordering in the active layer. In this work, we designed and synthesized a polymerized small-molecule acceptor, PY-HDB, featuring phenyl-alkyl inner side chains. Compared to PY-HD with conventional alkyl chains, PY-HDB possesses tighter π-π stacking behavior and improved miscibility with the high-performance polymer donor D18, promoting a favorable nanoscale phase-separated morphology in the D18:PY-HDB blend. Consequently, the corresponding device delivers an excellent power conversion efficiency (PCE) of 17.49% with a remarkable fill factor of 75.46%, ranking among the top values for binary D18-based all-PSCs. This work provides a promising side-chain design strategy for developing high-performance polymer acceptors.
More Related Videos
09:32Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells
Published on: April 25, 2018
06:49In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
Published on: March 2, 2021
Related Concept Videos
Anionic Chain-Growth Polymerization: Overview
Polymer Classification: Crystallinity
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Polymer Classification: Stereospecificity
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Free-Radical Chain Reaction and Polymerization of Alkenes
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)