Before revision: Quantum heterostructures are important for fabrication of rechargeable batteries,short-wavelength light-emitting diodes and diode lasers, and for other optoelectronic applications ,wind mills , e.g.
After revision: Quantum heterostructures are important wind mill.For fabrication of rechargeable batteries,short-wavelength light-emitting diodes and diode lasers, and for other optoelectronic applications , e.g.