Rakee15,
As papunbig says your area in interest is not clear. even then i will give some topics.
Graphene Electronics is a new trend
Biological Transistors, DNA Computing, Motionless Electric generator (MEG).
But is not entirely new. What I Have to suggest is that, you can refer technical magazines such as IEEE spectrum for knowing latest trends in many area not only related to electronics but almost every field. or refer Internet. But technical magazines are best choices in my opinion.
All the best.