[Ki-]

I find it quite difficult to understand since i'm 1st year undergraduate. I'm really interested to learn this topic.
Please I want to know what should i study to have a better experience while learning about Chemical sensors.
Thanks so much in advance.

[Borek]

There are many types of sensors, at this level of generality there is no other answer than to "learn chemistry, around graduation things will become much clearer".

There is always a chance you are just a spammer and the next thing we see is you add a link to your signature. Your account will be deleted then.

[Ki-]

@borek ,thanks for answer!
Sorry about it.
This is the book I just purchased. http://www.amazon.es/Principles-Chemical-Sensors-Jiri-Janata/dp/0387699309.

I want to understand it completely. I want to know the recommended background.

[Borek]

To quote preface:

The subject of chemical sensors is much too broad (...) The challenge for me has been to present uniform logical coverage of such a large area. In spite of its relatively shallow depth, it is intended as a graduate course.

My understanding is that you will need a little bit of everything. If it is intended as graduate course it assumes you know everything required for graduation - so apart from general chemistry at least basic courses in physical chemistry, spectroscopy, instrumental analysis, biochemistry and so on.