A flexible moisture barrier comprised of a SiO2-embedded organic–inorganic hybrid nanocomposite and Al2O3 for thin-film encapsulation of OLEDs

The role of carrier gas flow in roll-to-roll AP-PECVD synthesized silica moisture barrier films

“…To describe the PEN substrate and the silica-like film a Cauchy dispersion function was applied for both materials. The substrate anisotropy was not [20][21][22][23][24][25][26] implemented into the model [40], however the sample orientation was kept the same for each measurement.…”

“…These functional foils can therefore be used for the protection of electronic components such as flexible solar cells, optical components like quantum dots or in food and medical packaging applications [18][19][20][21][22][23][24][25][26][27]. Effective water vapor transmission rate (WVTR) measurements showed that rates as low as 6.9 · 10 −4 g·m −2 ·day −1 (at 40°C, 90% RH) can be achieved using a bilayer film architecture [28].…”

“…A comprehensive analysis is carried out of how the gradient in the silanol concentration, induced by changing the carrier gas flow rate, is related to the moisture barrier films. In addition the role of the gas flow rate on the moisture barrier performance in a single and a bilayer architecture [22][23][24][25][26][36][37][38] is systematically investigated.…”

Thin film encapsulation for organic light-emitting diodes using inorganic/organic hybrid layers by atomic layer deposition

“…ALD and molecular layer deposition (MLD) processes can deposit smooth, conformal, and pinhole-free films. Recently, an ALD/MLD combination structure has been proposed because ALD/MLD multilayers have very good film integrity which causes them to have advanced performance for thin film encapsulation [11][12][13].…”

Thin film Encapsulations of Flexible Organic Light Emitting Diodes

“…An organicinorganic multi-barrier become an alternative to prevent the defects. [7][8][9][10][11] In this work, to prevent the penetration of water vapor into the OLEDs, various encapsulated films for flexible OLEDs were studied, where gas barrier layers including inorganic Al 2 O 3 thin films prepared by atomic layer deposition, organic Parylene C thin films prepared by chemical vapor deposition, and their combination were considered. The transmittance and water vapor transmission rate of the encapsulated films were tested.…”