Hey, I am currently a 3rd year undergraduate majoring in Physics (emphasis with Astro) but I recently decided I want to apply for condensed matter experiment for grad school. I recently got interested in condensed matter because I want to help improve energy efficiencies in the world and it seems as though the best route via physics is through a knowledge of semi-conductors. Naturally, that area of physics is solid-state/condensed matter physics. So that probably leads me towards the DOE or industry sector where they work on (photovoltaics, thermo electrics, nanotech, etc).
Will I be less competitive getting into grad school if I am an astro major and that I do my senior thesis with an astro theory advisor? This summer I plan to publish 1st or 2nd author in astro but I don't know if that will be of any help for CME. I have not taken any solid state physics electives and at this point I'm note even sure if I'd like it or be any good at it. Any thoughts or suggestions would be greatly appreciated, thanks!