A lot of organizations offer scholarships. They support all levels of an early academic career and any number of research topics. It's worth to have a look. These pages may help you (but are in German only, sorry for that):
- The interactive page established by the German Federal Ministry for Education and Research (BMBF) allows you to find grants according to your own criteria.
- The database established by the German Academic Exchange Service (DAAD) provides information about financial support for outgoing students, graduates, Phd students, scientists and university teachers.
- The internetpage established by a social start up offers information about any number of ways to finance your studies, both for students and for Phd students.