he most important discoveries I've probably made would be the research I did in grad school (since I haven't really finished any of the stuff I'm working on now). The largest part of my research was my studies of timescale and solid-state effects in Conjugated Polymers. Basically I discovered these materials are weird. More technically, I discovered that because their optical bandgap and exciton binding energies are about the same order of magnitude, the effective dielectric constant isn't the same for excitonic and conduction-band states. If that sounds interesting to you, check out: E. Moore and D. Yaron, "An Explicit-Solvent Dynamic Dielectric Screening Model of Electron-Hole Interactions in Conjugated Polymers", J. Chem. Phys. 109, 6147 (1998).

he second main (scientific at least) thing I discovered in graduate school is that for the most part, the third-order nonlinear optical response of organic molecules doesn't actually depend on anything much but the optical bandgap. So when someone builds an all-optical computer using conducting polymers, I'm the guy who said it couldn't be done. Details for the insatiably curious can be found in: E. E. Moore and D. Yaron, "Theoretical Studies Concerning the Optimization of Conjugated Molecules for Third-Order Nonlinear Optics", Journal of Physical Chemistry A 106, 5339-5347 (2002).