Author/Authors :
Negishi، نويسنده , , Y. and Kawamata، نويسنده , , H. and Hayakawa، نويسنده , , F. and Nakajima، نويسنده , , A. O. Ayhan · A. C. Kaya · H. F. Nied، نويسنده , , K.، نويسنده ,
Abstract :
The electronic structures of germanium cluster (Gen; n=4–32) were studied by using photoelectron spectroscopy (PES) for Gen−, GenF−, and GenCl−. The halogen atom doping method enables us to determine the HOMO–LUMO gap of the corresponding neutral Gen cluster to be 0.8–1.0 eV around n=30. This result implies that the Gen cluster itself never emits visible emissions.