Back شبه موصل عضوي Arabic Semiconductors polímers Catalan Organische Halbleiter German Semiconductor orgánico Spanish Orgaanilised pooljuhid Estonian نیمرسانای آلی Persian Semi-conducteur organique French Szerves félvezető Hungarian 有機半導体 Japanese 유기 반도체 Korean
Organic semiconductors are solids whose building blocks are pi-bonded molecules or polymers made up by carbon and hydrogen atoms and – at times – heteroatoms such as nitrogen, sulfur and oxygen. They exist in the form of molecular crystals or amorphous thin films. In general, they are electrical insulators, but become semiconducting when charges are either injected from appropriate electrodes, upon doping or by photoexcitation.