Education and Scientific Formation
Richard Errett Smalley was born on June 6, 1943, in Akron, Ohio, United States. He grew up in a middle‑class family that encouraged curiosity about the natural world. Smalley attended the public schools of Ohio and demonstrated an early aptitude for mathematics and physics. In 1965, he earned a Bachelor of Science in Chemistry from the University of Michigan, where he worked under the mentorship of Professor Stanley J. Koltun, gaining exposure to spectroscopic techniques and the emerging field of molecular beam studies.
Following his undergraduate studies, Smalley pursued graduate work at Harvard University. He completed a Ph.D. in Chemistry in 1973 under the supervision of Professor Dudley R. Herschbach, a future Nobel laureate. Smalley’s doctoral research focused on the dynamics of gas‑phase reactions and the development of crossed molecular‑beam experiments, a technique that would later become central to his own experimental style. His dissertation, “Molecular beam studies of elementary chemical reactions,” laid a methodological foundation for precise, high‑resolution investigation of molecular processes.
During his post‑doctoral years (1973–1977) at the University of Arizona under Professor William G. Gaertner, Smalley further refined his expertise in laser spectroscopy and molecular dynamics. He also spent a brief period as a post‑doctoral fellow at the National Institute of Standards and Technology (NIST), where he became acquainted with the possibilities of creating novel carbon structures through controlled vaporization techniques.
Research Career
In 1977 Smalley joined the faculty of the University of California, Berkeley as an assistant professor of chemistry. His early independent research continued to explore molecular beam apparatuses, focusing on reaction dynamics at the quantum level. By the early 1980s, Smalley had secured a tenure‑track position and, in 1984, was promoted to full professor.
While at Berkeley, Smalley founded the Laboratory for Research on the Structure of Matter (LRSM) in 1994, an interdisciplinary hub that brought together chemists, physicists, and materials scientists. The LRSM was equipped with a state‑of‑the‑art laser vaporization source, a time‑of‑flight mass spectrometer, and a suite of analytical tools that enabled the synthesis and characterization of clusters of atoms and molecules.
Throughout his career, Smalley collaborated closely with his brother, Robert F. Smalley, an engineer and physicist specializing in carbon nanomaterials. Their joint efforts culminated in the discovery of the buckminsterfullerene (C₆₀) in 1985, a breakthrough that earned the Smalley brothers public recognition and later the 1996 Nobel Prize in Chemistry (shared with Harry Kroto).
In the late 1990s, Smalley’s team turned its attention to carbon nanotubes, a family of cylindrical carbon structures with extraordinary mechanical strength and electrical properties. Using laser ablation and catalytic growth techniques, Smalley’s group produced single‑walled carbon nanotubes (SWNTs) and documented their electronic behavior, which opened avenues for nanodevice engineering.
Discoveries, Inventions, and Methods
Fullerenes (Buckminsterfullerene)
In 1985, Smalley, Kroto, and collaborators observed that the laser vaporization of graphite produced a series of carbon clusters. Detailed mass‑spectrometric analysis revealed a particularly stable “magic number” peak at mass 720 amu, corresponding to a C₆₀ molecule. The team hypothesized a closed‑cage, geodesic structure reminiscent of the geodesic domes popularized by architect Buckminster Fuller. The resulting model—now known as buckminsterfullerene—represented the first known example of a carbon allotrope other than graphite and diamond.
Key aspects of the discovery:
- Use of a high‑energy pulsed laser to vaporize graphite in a helium atmosphere.
- Implementation of a time‑of‑flight mass spectrometer to resolve cluster sizes.
- Interpretation of stability patterns via the concept of aromaticity extended to three dimensions.
Carbon Nanotubes
Building on the laser vaporization technique, Smalley’s laboratory in the mid‑1990s demonstrated that carbon nanotubes could be produced in significant yields. By introducing transition‑metal catalyst particles (often nickel or cobalt) into the vapor plume, the growth of cylindrical graphene sheets was facilitated, yielding tubes with diameters as small as 1 nm and lengths up to several micrometers.
The method involved:
- Laser ablation of a composite target containing graphite and catalyst metal.
- Rapid cooling in a high‑pressure inert gas to promote tube nucleation.
- Post‑synthesis purification using acid treatments and centrifugation.
These procedures laid the groundwork for scalable synthesis of nanotubes, influencing both academic research and industrial applications.
Publications, Recognition, and Debate
Richard Smalley authored over 250 peer‑reviewed articles and several book chapters. His most cited works include:
- “C₆₀: Buckminsterfullerene” (Science, 1985) – the seminal paper describing the discovery of fullerenes.
- “Laser Vaporization and the Synthesis of Carbon Nanotubes” (Nature, 1995) – a landmark report detailing the first reproducible synthesis of SWNTs.
- “Carbon Nanostructures: Synthesis, Properties, and Applications” (Chemical Reviews, 1998) – a comprehensive review that guided subsequent research.
Smalley received numerous honors, most prominently the 1996 Nobel Prize in Chemistry, shared with Harry Kroto and Robert Curl. He was also awarded the American Chemical Society Priestley Medal (2004), the National Medal of Science (posthumously awarded in 2005), and election to the National Academy of Sciences (1992) and the Royal Society of London (Foreign Member, 2004).
While Smalley’s contributions were widely celebrated, his outspoken advocacy for the practical commercialisation of nanotechnology occasionally sparked debate. In a 2003 parliamentary testimony, he warned of “nanodangers” related to unchecked proliferation of nanomaterials, a stance that generated both support and criticism within the scientific community regarding risk communication and regulatory policy.
Impact on the Field
The identification of fullerenes inaugurated the field of nanocarbon chemistry, opening research into a vast family of carbon allotropes with unique electronic, optical, and mechanical properties. Fullerenes have found applications in organic photovoltaics, drug delivery, and superconductivity research.
Carbon nanotubes, as elucidated by Smalley’s laboratory, have become foundational to modern nanotechnology. Their high tensile strength, exceptional electrical conductivity, and quantum confinement effects have enabled breakthroughs in:
- Flexible and transparent conductive films for displays.
- High‑performance composites for aerospace and sports equipment.
- Field‑effect transistors and sensors operating at the single‑molecule level.
- Energy storage devices, including supercapacitors and lithium‑sulfur batteries.
Beyond his research, Smalley was a committed educator and mentor. He supervised over 70 graduate students and post‑doctoral fellows, many of whom have become leaders in nanoscience. His emphasis on interdisciplinary collaboration and hands‑on experimental design has been integrated into curricula across chemistry and materials engineering programs worldwide.
Richard Smalley passed away on October 28, 2005, in Berkeley, California, after a brief battle with pancreatic cancer. His legacy endures through the continued study of nanocarbon materials and the many institutions, awards, and laboratories that bear his name, such as the Richard E. Smalley Institute for Nanoscale Sciences at the University of Texas at Dallas.
While his personal net worth was never publicly disclosed, estimates suggest that, like many academic researchers, his financial assets were modest relative to his scientific influence. Smalley’s enduring impact is measured not in wealth but in the transformative technologies that trace their origins to his discoveries.
