upward

Liquid and amorphous

Shimakawa K, Kolobov A, Elliott S R, Photoinduced effects and metastability in amorphous semiconductors and insulators, AP 44, 475 (1995) – see here

Street R A, Hydrogenated amorphous silicon (CUP, 1991) – google


Amorphous and Nanocrystalline Semiconductors, ed Taylor P C, Branz H M, Collins R W, Schiff E A, JNCS 354, 2067-2952 (2008)

Amorphous and Nanocrystalline Semiconductors, ed Martins R, Chu V, Fortunato E, Conde J P, Ferreira I, JNCS 352, 839-2060 (2006)

Amorphous silicon and related materials, ed Fritzsche H (WSPC, 1989) – google

The physics of hydrogenated amorphous silicon, ed Joannopoulos J D, Lucovsky G (Springer, 1984), in 2 vol