Kj. Chen et al., A DETAILED PHOTOLUMINESCENCE STUDY OF CRYSTALLIZED A-SI-H MULTI-QUANTUM-WELL STRUCTURES, Journal of non-crystalline solids, 166, 1993, pp. 977-980
We have observed visible photoluminescence (PL) at room temperature in
crystallized a-Si:H/a-SiNx:H multiquantum-well (MQW) structures with
L(S) less than or equal to 4 nm. A detailed PL study, which deals with
the temperature and excitation density dependence of PL peak intensit
y, indicates that the electron-hole confinement effect plays a predomi
nant role in visible PL in crystallized MQW structures with thin well
layers at higher temperature.