If you've ever embarked on choosing new paint shades for your home, then you'll no doubt have heard the term Light Reflective ...

The colour of an object is determined by the wavelength of light that it reflects. White light from the Sun is a mixture of colours, each with a different frequency. You can use a prism to split ...

However, achieving white light emission with a 'colour temperature' that is not too blue is a serious challenge. At small drive currents, the observed electroluminescence was 'spotty' because only ...