I am taking the materials processing exam, but my research direction is solar thin film materials. I

Materials processing students typically only study applied knowledge, so jobs are relatively easy to find. However, the entire photovoltaic industry is currently in a recession and thin film solar materials are not the mainstream of photovoltaics, so if you are fair. when looking for a job, you need to think twice; but if you are familiar with semiconductor theory, interface analysis, and various testing methods, it should be easier to find a job. Solar thin film materials are completely different from material forming and welding. While in graduate school, you can only seriously accomplish one thing and you have to make choices.