Buckyball Marries Graphene
March 2, 2018 | Department of Energy, Office of ScienceEstimated reading time: 1 minute

Electronic and structure richness arise from the merger of semiconducting molecules of carbon buckyballs and 2-D graphene.
Scientists combined buckyballs, which resemble tiny soccer balls made from 60 carbon atoms, with graphene, a single layer of carbon, on an underlying surface. Positive and negative charges can transfer between the balls and graphene depending on the nature of the surface as well as the structural order and local orientation of the carbon ball. Scientists can use this architecture to develop tunable junctions for lightweight electronic devices.
Fast-moving electrons and their counterpart, holes, were preserved in graphene with crystalline buckyball overlayers. Significantly, the carbon ball provides charge transfer to the graphene. Scientists expect the transfer to be highly tunable with external voltages. This marriage has ramifications for smart electronics that run longer and do not break as easily, bringing us closer to sensor-embedded smart clothing and robotic skin.
Charge transfer at the interface between dissimilar materials is at the heart of almost all electronic technologies such as transistors and photovoltaic devices. In this study, scientists studied charge transfer at the interface region of buckyball molecules deposited on graphene, with and without a supporting substrate, such as hexagonal boron nitride. They employed ab initio density functional theory with van der Waals interactions to model the structure theoretically. Van der Waals interactions are weak connections between neutral molecules. The team used high-resolution transmission electron microscopy and electronic transport measurements to characterize experimentally the properties of the interface.
The researchers observed that charge transfer between buckyballs and the graphene was sensitive to the nature of the underlying substrate, in addition, to the crystallinity and local orientation of the buckyballs. These studies open an avenue to devices where buckyball layers on top of graphene can serve as electron acceptors and other buckyball layers as electron donors. Even at room temperature, buckyball molecules were orientationally locked into position. This is in sharp contrast to buckyball molecules in un-doped bulk crystalline configurations, where locking occurs only at low temperature. High electron and hole mobilities are preserved in graphene with crystalline buckyball overlayers. This finding has ramifications for the development of organic high-mobility field-effect devices and other high mobility applications.
Suggested Items
Tata Electronics Appoints KC Ang as President and Head of Tata Semiconductor Manufacturing
04/03/2025 | PRNewswireTata Electronics Private Limited, a pioneer in the Indian electronics and semiconductor manufacturing sector, announced the appointment of KC Ang as President and Head of its Foundry business - Tata Semiconductor Manufacturing Private Limited reporting to Dr. Randhir Thakur, CEO & MD of Tata Electronics.
Real Time with... IPC APEX EXPO 2025: Insights into PCB Design and Manufacturing with Polar Instruments
04/03/2025 | Real Time with...IPC APEX EXPOErik Bateham discusses Polar's latest book, which enhances insights for PCB designers and manufacturers. The book, "The Designer's Guide to... More Secrets of High-Speed PCBs," features a guest chapter on 2D via design modeling. Erik highlights the industry's shift towards UHDI and the challenges in measuring at micron levels.
Statement from IPC on ‘Liberation Day’ Pressing for Domestic Manufacturing Strategy
04/03/2025 | IPCIPC, a global electronics association dedicated to furthering the competitive excellence and financial success of more than 3,200 members, shared the following statement today on U.S. tariffs and their implications on the global electronics industry. It can be attributed to Richard Cappetto, IPC senior director of North American government affairs:
My Top 10 Highlights from IPC APEX EXPO 2025
04/03/2025 | Chris Mitchell, IPC VP, Global Government RelationsEvery year, I am reminded what an exciting and fast-paced whirlwind IPC APEX EXPO is—the friends you run into, the new people you meet, the innovations you encounter, and the fascinating discussions you dive into. It’s certainly true that our industry is driven by searchers and problem-solvers, creating endless opportunities at APEX EXPO to connect, collaborate, and shape the future.
IPC Releases March 2025 Global Sentiment of the Electronics Manufacturing Supply Chain Report
04/02/2025 | IPCThis past March, electronics industry demand strengthened to its highest level in nearly a year, indicating strong expansion in customer and manufacturing activity according to IPC’s [IPC-Current-Sentimen-Global-EMSChain0525.pdf] March Sentiment of the Global Electronics Manufacturing Supply Chain Report.