Structural Nature of Amorphous III–V Semiconductors from Photoemission Spectroscopy

The results of recent model density of states calculations and photoemission experiments for systems having many like‐atom bonds will be discussed to elucidate the effects of bonds between like atoms on the electronic density of states. It will then be argued that while recent photoemission results exclude the existence of large numbers of like‐atom bonds in amorphous III–V semiconductors, they may not have the sensitivity to detect the small number of such bonds expected from random network models.