Description
PC71BM – SOL5071
CAS: 609771-63-3
The PC71BM (SOL5071), or [6,6]-Phenyl C71 butyric acid methyl ester, is an elite electron acceptor material that has become the industry standard for high-efficiency organic photovoltaic (OPV) devices. As a specialized PC71BM manufacturer, Solaris Chem provides this C70 derivative with exceptional purity levels, specifically engineered to outperform standard C60-based acceptors in light-harvesting capabilities.
The molecular structure of PC71BM, based on the asymmetrical C70 fullerene cage, allows for significantly broader optical absorption in the visible spectrum compared to its counterpart, PC61BM. This property is crucial for maximizing the short-circuit current (Jsc) in next-generation solar cells.
Why Choose PC71BM over PC61BM?
Researchers transition to SOL5071 primarily due to its enhanced optical properties. While PC61BM is excellent for electron transport, its symmetrical structure limits its light absorption.
-
Enhanced Light Harvesting: The asymmetrical C70 cage of PC71BM allows for more electronic transitions, leading to a broader and stronger absorption profile in the 400nm to 700nm range.
-
Higher Power Conversion Efficiency (PCE): By absorbing more photons, PC71BM-based devices typically exhibit higher PCE than those using C60 derivatives.
-
Versatile Compatibility: It pairs exceptionally well with a wide range of low-bandgap donor polymers.
Optimal Matching with Donor Materials
The SOL5071 is designed to create high-performance bulk heterojunction (BHJ) solar cells. It is highly effective when paired with high-performance donor materials available at Solaris Chem, including:
-
P3HT (SOL4106): The classic combination for stable, reproducible OPV research.
-
PCDTBT (SOL4280): Optimized for high Open Circuit Voltage (Voc).
-
PTB7 (SOL4700): A modern pairing that achieves superior Power Conversion Efficiency (PCE) in inverted architectures.
Technical Excellence: Isomer Purity and Energy Levels
At Solaris Chem, we understand that thin-film morphology is the key to device performance. Our PC71BM (SOL5071) features:
-
Isomer Precision: Our material is >99.9% [6,6] isomerized. High isomer purity ensures consistent film morphology and prevents charge trapping, which is common in lower-grade alternatives.
-
Electronic Profile: With a LUMO of -3.9 eV and a HOMO of -5.9 eV, it provides an ideal energetic offset for most high-performance donor polymers, facilitating efficient exciton dissociation.
-
Superior Solubility: Optimized for processing in common organic solvents like Toluene, Chloroform, and Chlorobenzene, allowing for precise control over active layer thickness during spin-coating or blade-coating.
Available Grades and Large-Scale Projects
We offer our PC71BM in two high-purity grades to meet different research and industrial needs:
-
Grade > 99.50% (SOL5071A): The premium choice for high-stakes device optimization and record-breaking efficiency attempts.
-
Grade > 99.00% (SOL5071B): An excellent high-purity option for general R&D and baseline testing.
For industrial partners and pilot lines, Solaris Chem provides scalable supply chains. Our material is available for large-scale projects, ensuring that your move from lab to fab is supported by a consistent, high-volume supply of SOL5071.
Used as an electron acceptor from Donor materials such as P3HT (SOL4106), PCDTBT (SOL4280), or PTB7 (SOL4700) to make high Open Circuit Voltage (Voc), high Power Conversion Efficiency (PCE) bulk heterojunction solar cells, >99.9% [6,6] isomerized. Available for large-scale projects.
Choose between:
Grade > 99.00% (SOL5071B)
Grade > 99.50% (SOL5071A)
Safety Data Sheet – SDS-SOL5071
Technical Data Sheet:
| Acronyms: | PC71BM |
| Chemical Name: | [6,6]-Phenyl C71 butyric acid methyl ester |
| CAS# | 609771-63-3 |
| Color and Texture: | black to light brown crystalline powder |
| Molecular Weight: | 1031 g/mol |
| Absorption, λmax (Media): | N/A |
| Emission, λmax (Media): | N/A |
| HOMO (eV): | -5.9 eV |
| LUMO (eV): | -3.9 eV |
| Melting point (°C): | N/A |
| Solubility (Solvent): | toluene, chloroform, chlorobenzene |
| Other: | N/A |
References:
1. Influence of Blend Ratio and Processing Additive on Free Carrier Yield and Mobility in PTB7:PC71BM Photovoltaic Solar Cells
Authors: V. Pranculis, A. Ruseckas, D. A. Vithanage, G. J. Hedley, I. D. W. Samuel, V. Gulbinas. ( https://doi.org/10.1021/acs.jpcc.6b01548 )
Request pricing for larger quantity
* Price subject to change without prior notice
Products for Research and Development. Laboratory use only by qualified personnel. The user should read the available SDS and be aware of any precaution to take for the safe manipulation of these materials. Solarischem shall not be held responsible for any damage resulting from the use or handling of these products. Any product can be discontinued, specifications altered or price changed at any time without prior notice. The specifications and structures do not guarantee any product’s suitability for the client’s applications or uses.
