Ph.D(2005) The Pennsylvania State University Postdoc (2005-2008) University of California, Berkeley and Lawrence Berkeley National Lab

Photochemistry/Spectroscopy and Dynamics/Structural Biology

Describing electron- and energy-transfer processes in nanoscale systems is critical not only for understanding fundamental energy redistribution mechanisms in nanoscopic media, but also for developing next-generation devices based on these technologies. Research in the Knappenberger group involves understanding these processes in nanoscale assemblies through development and implementation of novel optical spectroscopy techniques, including single-molecule and time-resolved methods. The resulting detailed chemical information will address critical issues in nanoscale chemical physics and single-molecule analytical chemistry and direct the assembly of carefully designed nanoscale architectures.

Dowgiallo AM, Knappenberger KL. Ultrafast electron-phonon coupling in hollow gold nanospheres. Phys Chem Chem Phys. 2011, Nov 4. [Epub ahead of print] Dowgiallo AM, Schwartzberg AM, Knappenberger KL. Structure-dependent coherent acoustic vibrations of hollow gold nanospheres. Nano Lett. 2011, Aug 10;11(8):3258-62 Attar AR, Blumling DE, Knappenberger KL Jr. Photodissociation of thioglycolic acid studied by femtosecond time-resolved transient absorption spectroscopy. J Chem Phys. 2011, Jan 14;134(2):024514 Chandra M, Dowgiallo AM, Knappenberger KL Jr. Controlled plasmon resonance properties of hollow gold nanosphere aggregates. J Am Chem Soc. 2010, Nov 10;132(44):15782-9

Priyam A, Blumling DE, Knappenberger KL Jr. Synthesis, characterization, and self-organization of dendrimer-encapsulated HgTe quantum dots. Langmuir. 2010, 2010 Jul 6;26(13):10636-44