I graduated with degrees in Electrical Engineering and Commerce from a good-ranking Australian university in 2010. I've been in the workforce for 18 months – found it to be not nearly as stimulating as the uni environment, so I'm contemplating the possibility of pursuing a masters or PhD. I'm interested in areas which are very 'physics-related' such as photovoltaic cell design, semiconductor physics and quantum phenomena (areas such as control of quantum systems). I would not rule out the possibility of becoming an academic, as I feel it would suit my personality and likings rather well. The question I have is whether I should devote a year of enhancing my physics knowledge in areas of interest by embarking on studying a grad dip in physics, or would it be more sensible for somebody like me to simply attempt to go straight into a masters/PhD in one of the areas I've listed despite the lack of physics emphasis in my Engineering degree? Thanks guys.