摘要:
A bimodal metal nanoparticle composition includes first metal nanoparticles having an average diameter of from about 50 nm to about 1000 nm, and second stabilized metal nanoparticles having an average diameter of from about 0.5 nm to about 20 nm, the second stabilized metal nanoparticles including metal cores having a stabilizer attached to the surfaces thereof, wherein the stabilizer is a substituted dithiocarbonate.
摘要:
Low-cost copper nanoparticle inks that can be annealed onto paper substrate for RFID antenna applications, using substituted dithiocarbonates as stabilizers during copper nanoparticle ink production.
摘要:
A method of printing chipless RFID tags with unique features, includes printing a RFID antenna pattern precursor using a first printing process, wherein the RFID antenna pattern precursor includes a plurality of disconnected wire segments; and printing a conductive ink using a second print process to interconnect at least two of the plurality of disconnected wire segments, to produce a final RFID antenna with a unique antenna geometry.
摘要:
An image forming medium includes a paper substrate and an imaging layer coated on or impregnated into a paper substrate, where the imaging layer is formed of an imaging composition that includes an alkoxy substituted diarylethene photochromic material dissolved or dispersed in a solvent or polymeric binder, and where the imaging composition exhibits a reversible transition between a colorless and a colored state.
摘要:
A method of forming conductive features on a substrate from a solution of metal nanoparticles by providing a depositing solution and liquid depositing the depositing solution onto a substrate. The depositing solution is then heated to a temperature below about 140° C. to anneal the first and second nanoparticles and remove any reaction by-products. The depositing solution may be comprised of a mixture of first metal nanoparticles and second metal nanoparticles or a combination of first metal nanoparticles and a soluble second metal nanopartical precursor. Furthermore, the average diameter of the first metal nanoparticles is about 50 nm to about 100 μm and the average diameter of the second metal nanoparticles is about 0.5 nm to about 20 nm.
摘要:
A method to seal cells includes providing a substrate having at least one cell, laminating a membrane onto the cells such that there is at least one aperture over each cell, introducing a functional material into each cell through the aperture, and sealing the apertures with a sealant that is self-supporting. A device has at least one cell having walls, a membrane forming a lid of the cell, having at least one aperture, a functional material in the cell, and a self-supporting sealant to seal the aperture.
摘要:
An electrophoretic ink includes fluid having either (a) at least two sets of differently colored particles with the fluid been a substantially clear fluid, or (b) at least one set of colored particles with the fluid been a differently colored fluid than the colored particles, wherein at least one set of colored particles includes at least one electrophoretic particle having a core-shell structure. The at least one electrophoretic particle includes a shell and a core located within the shell, wherein the core includes a colorant and a fluorescent compound. An electric field may be applied adjacently to the fluid of the ink, and the at least one set of colored particles having the core-shell structure is movable within the fluid of the ink by the electric field.
摘要:
An image forming medium includes a paper substrate and an imaging layer coated on or impregnated into a paper substrate, where the imaging layer is formed of an imaging composition that includes an alkoxy substituted diarylethene photochromic material dissolved or dispersed in a solvent or polymeric binder, and where the imaging composition exhibits a reversible transition between a colorless and a colored state.
摘要:
Disclosed is a machine readable code of a set of distinguishable symbols including at least a first symbol for encoding zeroes and a second symbol for encoding ones, wherein the first symbol exhibits a first color during machine reading and the second symbol exhibits a second color during machine reading, wherein the first color and the second color are detectably different under machine reading conditions.
摘要:
An reimageable medium composed of: a substrate; and a photochromic material, wherein the medium is capable of exhibiting a color contrast and an absence of the color contrast, wherein the medium has a characteristic that when the medium exhibits the absence of the color contrast and is then exposed to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, the color contrast is present between the exposed region and the non-exposed region to form a temporary image corresponding to the predetermined image that is visible for a visible time, wherein the medium has a characteristic that when the temporary image is exposed to an indoor ambient condition for an image erasing time, the color contrast changes to the absence of the color contrast to erase the temporary image in all of the following: (i) when the indoor ambient condition includes darkness at ambient temperature, (ii) when the indoor ambient condition includes indoor ambient light at ambient temperature, and (iii) when the indoor ambient condition includes both the darkness at ambient temperature and the indoor ambient light at ambient temperature, and wherein the medium is capable of undergoing multiple cycles of temporary image formation and temporary image erasure.