“…Spectral sensitization by dyes is observed in a large number of photoconducting elements (Ge [3], Se [4], S[S]), halides (TlC1 [6,7], TIBr [8][9][10], T11 [6,10,111,NaCl [12], Hg12[9, 101, silver halides[lO, [13][14][15][16][17][18][19]), sulfides (CdS [20,21]) and oxides (ZnO [18,Pb0[10], Cu,0 [30], HgO [3,6], SnO2[31, CdO[31]). Because electronic charge carriers are generated, dye sensitization is a characteristic effect for various photoeffects.…”