Quantum-confined structures and lasers in II-VI semiconductors in the blue-green

Recent progress in wide-gap II-VI heterostructures is reviewed, including results on blue/green diode lasers and light emitting diodes in ZnSe-based quantum wells configurations. An important element in these structures are quasi-2 dimensional exciton effects which are likely to be of relevance as practical optoelectronic devices emerge at short visible wavelengths.