, Exhaustion Oil 40 years Coal 170 years natural gas 65 yearsAlternative Energy Solar energy Solar ... Solar cell Solar cell Etc. Layer type Compound silicon Bulk Thin film Bulk Thin film Thin film Dye A-Si ... / CIGS Polymer CuInSe2 GaAs Amorphous Single ct. InP Amorphous Poly ct. CdTe GaAs/Ge 1 generation
is a film of organic compounds which emit light in response to an electric current. This layer of ... ganic semiconductors.Originally, the most basic polymer OLEDs consisted of a single organic layer ... ommonly used polymers, reducing the energy barriers for hole injection. Metals such as barium and c