The Willets lab is interested in understanding how heterogeneity at nanoscale interfaces impacts the function and properties of materials. Much of our research focuses on noble metal nanoparticles, typically gold and silver, which are both optically-active through the excitation of localized surface plasmons as well as electrochemically-active, which enables them to behave as nanoscale electrodes.
We use a variety of techniques including fluorescence, Raman, single molecule imaging, super-resolution imaging, electron microscopy, atomic force microscopy, and electrochemistry to understand how nanoscale interfacial heterogeneity affects a range of applications including sensing, energy harvesting and transfer, and surface reactivity. Visit our research and publication pages to learn more.
Latest Lab News
February 14, 2018. Yun and Vignesh's paper on looking at the roles of hot carriers and thermal effects on plasmon-mediated electrochemical reactions is accepted in J. Phys. Chem. C.
January 27, 2018. Vignesh and Joe's paper is selected as an ACS Editor's Choice manuscript and is now available as an OpenAccess article. Check out the paper here!
January 5, 2017. Vignesh and Joe's paper on using super-resolution imaging to visualize the impact of surface oxide formation on single silver nanoparticle electrodissolution is accepted in J. Phys. Chem. C.
December 4, 2017. Phil Reinhardt joins the group as a first year graduate student. Welcome Phil!
October 6, 2017. Undergraduates Allison Cutri, Jeff Williams, and Spencer Yeager all participate in the Undergraduate Research Program poster session, and Jeff takes home Honorable Mention (and $150!). Congratulations to our undergrads for their excellent work.
October 2, 2017. Our collaborative paper with Henry White's group on 3-D super-resolution imaging of nanoparticle translocation events through a pipette is accepted in ACS Nano.
September 29, 2017. Nat is organizing a relief effort for victims of Hurricane Maria. Please donate here: https://www.gofundme.com/helping-suenos-dorados-del-ayer
September 7, 2017. Gia Phan joins the lab as an undergraduate researcher. Welcome Gia!
August 25, 2017. Our lab volleyball team, the Plasmonsters, wins the Chemistry Department summer league. Click here for photos.
July 17, 2017. Our collaborative NSF DMREF proposal with David Masiello (U. Washington) and Stephan Link (Rice U.) is funded.
June 16, 2017. The special issue of Chemical Reviews on super-resolution and single molecule imaging co-edited by Kallie and Julie Biteen is now out!
May 24, 2017. Vignesh is selected to attend the "Next Generation of Electrochemistry" conference. Congratulations Vignesh!
May 18-19, 2017. The Willets lab visits Paul Holt's 9th grade science classes at Freire Charter School in Philadelphia. The students made silver nanoprisms of varying size and color!
May 11, 2017. Our Faraday Discussion on defocused imaging of gap mode SERS substrates is accepted.
April 24, 2017. The Willets lab welcomes two new undergraduate researchers to the group: Jeff Williams and Spencer Yeager. Welcome!
March 10, 2017. Aaron is selected as a Temple University Diamond Research Scholar. Congratulations, Aaron!
Click here to visit our News Archive