Frankly, in this age, if you arn't aware of the whole historical bibliography on some subject, then ANY idea a human can possibly have, has already been: at least thought about, possibly tried and potentially published if is has any value.
I hope you're not thinking about a phd thesis ? because I don't see how any of this world's academy would allow someone to enter a 3/4 years cycle of research on an idea that sounds of little utility, propsed by a person who has basically next to no knowledge of the field.
Sorry to sound really harsh, I just want to calm down the game. At least go read everything you need to before, other ideas will come up when reading papers, only to realize later that it was proposed as a paper 2 years later, that you will also read, and have another idea, that either happens to not work, or be covered by some even later paper, and this cycle goes on until, if you are lucky and clever, you finally can get your idea that will actually bring progress to the world's status of the research. BUT, a phd being in 3/4 years the chance is great that some other team will publish a very close work before you finish... Yep.
Good luck anyway :-)