Abstract: Techniques are provided herein for forming multi-tier memory structures with graded characteristics across different tiers. A given memory structure includes memory cells, with a given memory cell having an access device and a storage device. The access device may include, for example, a thin film transistor (TFT) structure, and the storage device may include a capacitor. Certain geometric or material parameters of the memory structures can be altered in a graded fashion across any number of tiers to compensate for process effects that occur when fabricating a given tier, which also affect any lower tiers. This may be done to more closely match the performance of the memory arrays across each of the tiers.

Abstract: A light emitting diode (LED) apparatus is described that applies plasmonic nanoparticles to enhance multicolor emitting materials, such as quantum dots (QDs) or fluorophores, in the color conversion layer of micro-LED and suppress the UV transmission. The metal nanoparticles, including but not limited to, aluminum, gold, copper, platinum, and silver have surface plasmon resonances in or close to the wavelength of excitation light or the wavelength of emission colors. UV or blue excitation over a color conversion layer formed by the mixture of emitting materials and scattering nanoparticles leads to enhancement of emission and thus increase in their quantum efficiency. An excitation filter is also used with in the LED apparatus to block the transmission of UV or blue excitation.