FE: Flexible electronics
MVTR: Moisture vapor transmission rate; sometimes called WVTR: water vapor transmission rate, typically measured as grams of vapor transmitted per square meter per day at a standard temperature and relative humidity, frequently 38°–40°C and 90%–100% relative humidity
O2TR: Oxygen transmission rate, typically measured as cubic centimeters of gas transmitted per square meter per day at 1 atmosphere pressure and room temperature (occasionally normalized to a specific thickness)
OLED: Organic light emitting diode
OPV: Organic photovoltaic
PCTFE: Poly(chloro-trifluoro-ethylene); aka Aclar®* — a very good, very tough polymeric moisture barrier but a relatively poor oxygen barrier
PE: Printed electronics
PET: Poly(ethylene-terephthalate); “polyester”, a commonly used plastic; in this context usually as a film
PV: Photovoltaic
TFT: Thin film transistor; can be printed. An array of TFTs can be used to control the images on a display.
WVTR: Water vapor transmission rate; sometimes called MVTR: moisture vapor transmission rate, typically measured as grams of vapor transmitted per square meter per day at a standard temperature and relative humidity, frequently 38°–40°C and 90%–100% relative humidity
*Aclar is a registered trademark of Honeywell