the present invention provides a method of providing a desired catalyst electron energy level . the method includes providing a donor material quantum confinement structure having a first fermi level , and providing an acceptor qcs material having a second fermi level , where the first fermi level is higher than the second fermi level . according to the method the acceptor is disposed proximal to the donor to alter an electronic structure of the donor and the acceptor materials to provide the desired catalyst electron energy level .