Abstract: A system comprising a first plurality of microchannels, a second plurality of microchannels in thermal communication with the first plurality of microchannels such that the first plurality of microchannels and second plurality of microchannels form a heat exchanger, and a phase change composite in thermal communication with the heat exchanger and methods of operating are disclosed herein.

Abstract: The present disclosure relates to a method that includes depositing a first layer onto a substrate, depositing a second layer onto a surface of the first layer, and separating the substrate from the second layer, where the substrate includes a first III-V alloy, the second layer includes second III-V alloy, and the first layer includes a material that includes at least two of a Group 1A element, a Group 2A element, a Group 6A element, and/or a halogen.

Abstract: Described herein are compositions and methods for the conversion of chlorophyll-derived phytol into useful and economically viable surfactants. The provided compositions utilize the hydrophobic phytol structure and added functional groups to increase hydrophilicity at one end of the molecule.

Abstract: Among other things, the present disclosure relates to re-purposing used lithium-ion batteries. The present disclosure includes treating an electrode using a solvent prior to electrochemically relithiating the electrode. In some embodiments, the relithiation may be done using a roll-to-roll device, wherein the electrode may be secured on a first pin and a second pin, then it may be unwound and submerged in an electrolyte solution. Lithium ions may be inserted into the electrode using a voltage. The layer of lithium may provide lithium ions to the electrode.

Abstract: Disclosed herein are compositions and methods for making polycrystalline thin films having very large grains sizes and exhibiting improved properties over existing thin films.

Abstract: Some embodiments of the invention include inventive methods for preparing perovskite solar cells (PSCs). In certain embodiments, the method comprises dissolving a functionalized material (e.g., a material that is functionalized with one or more functionalizing compounds) in a solvent, depositing a deposit composition on a perovskite layer where the deposit composition comprises the dissolved functionalized material, heating the deposit composition, and optionally removing some or all of the one or more functionalizing compounds from the deposit composition. Additional embodiments of the invention are also disclosed herein.

Abstract: The present disclosure relates to a method that includes converting a gas stream that contains hydrogen (H2) and carbon monoxide (CO) to a second mixture that contains a hydrocarbon, for example, a hydrocarbon having between 3 and 15 carbon atoms, where the converting is performed using a first catalyst configured to convert H2 and CO to methanol, a second catalyst configured to convert methanol to dimethyl ether (DME), and a third catalyst configured to convert DME to the hydrocarbon.

Abstract: Phosphite dehydrogenase (ptxD) expression was established as a selectable marker for nuclear and chloroplast genetic selection in Picochlorum renovo and Picochlorum celeri Phosphite was used as a sole phosphorus source in P. renovo and P. celeri. Growth on phosphite led to comparable growth and composition relative to phosphate.

Abstract: The present disclosure relates to a device that includes a perovskite layer; and a first layer that includes a molecule having a structure according to formula (I) Wherein the perovskite layer and the first layer are in physical contact, n is between 1 and 10, inclusively, R1 includes at least one of hydrogen, a first alkyl group, a first alkoxy group, and/or a first halogen, R2 includes at least one of hydrogen, a second alkyl group, a second alkoxy group, and/or a second halogen, R1 is bonded to aromatic ring (A) at carbon atom (1), carbon atom (2), carbon atom (3), or carbon atom (4), R2 is bonded to aromatic ring (B) at carbon atom (5), carbon atom (6), carbon atom (7), or carbon atom (8), and R1 and R2 are the same or different.

Abstract: Disclosed herein are processes for ethanol production from a lignocellulosic feedstock. These processes provide DMR of lignocellulosic biomass comprising two-stage deacetylation followed by mechanical refining so as to increase fermentable sugar yield while reducing hydrolytic enzyme loading requirements.

Abstract: Disclosed herein are CdSeTe photovoltaic devices having interdigitated back contact architecture for use in polycrystalline thin films in photovoltaic devices.

Abstract: Disclosed herein are methods for using cracked film lithography (CFL) for patterning transparent conductive metal grids. CFL can be vacuum- and Ag-free, and it forms more durable grids than nanowire approaches.

Abstract: Disclosed herein are methods and compositions for implementing a photosynthetic protein secretion platform.

Abstract: The present disclosure relates to a composition that includes a nanocrystalline core that includes a perovskite and having an outer surface, and a chiral molecule having a functional group, where the functional group is bonded to a first portion of the outer surface, and the composition is capable of circularly polarized luminescence (CPL). In some embodiments of the present disclosure, the composition is capable of absorbing circularly-polarized light.

Abstract: The present disclosure relates to a device that includes a first layer having an active material and a stabilizing material, where the active material includes a semiconductor, the stabilizing material includes at least one of an oligomer, an elastomer, a polymer, and/or a resin, and the stabilizing material provides to the device an improved performance metric compared to a device constructed of the first layer but constructed of only the active material (i.e., in the absence of the stabilizing material).

Abstract: The present disclosure relates to a composition that includes a perovskite having a surface, where the surface includes a pyridine compound. In some embodiments of the present disclosure, the pyridine compound may include an amine functional group. In some embodiments of the present disclosure, the pyridine compound may be selected from a group that includes N(2-methylpyridine)A, N(3-methylpyridine)A, N(4-(methyl)pyridine)A, N(3-(2-ethyl)pyridine)A, and N(4-(2-ethyl)pyridine)A, where A is a cation, and the pyridine compound has an ionic radius larger than 10 ?.

Abstract: The present disclosure relates to a composition that includes a solid, a first layer of an ionic liquid including an anion and a cation, a second layer including an ionically conductive ionomer, and a catalyst including a metal positioned on the solid, where the ionic liquid forms a first layer on the solid, the first layer is positioned between the second layer and the solid, and the catalyst is positioned between the solid and the first layer.

Abstract: Systems and methods for organic semiconductor devices with sputtered contact layers are provided. In one embodiment, an organic semiconductor device comprises: a first contact layer comprising a first sputter-deposited transparent conducting oxide; an electron transport layer interfacing with the first contact layer; a second contact layer comprising a second sputter-deposited transparent conducting oxide; a hole transport layer interfacing with the second contact layer; and an organic semiconductor active layer having a first side facing the electron transport layer and an opposing second side facing the hole transport layer; wherein either the electron transport layer or the hole transport layer comprises a buffering transport layer.

Abstract: Disclosed herein are methods for making Zn1?xSn1+xN2.

Abstract: Visually undistorted thin film electronic devices are provided. In one embodiment, a method for producing a thin-film electronic device comprises: opening a scribe in a stack of thin film material layers deposited on a substrate to define an active region and an inactive region of the thin-film electronic device, the stack comprising at least one active semiconductor layer. The active region comprises a non-scribed area of the stack and the inactive region comprises a region of the stack where thin film material was removed by the scribe. The method further comprises depositing at least one scribe fill material into a gap opened by the scribe. The scribe fill material has embedded therein one or more coloring elements that alter an optical characteristics spectrum of the inactive region to obtain an optical characteristics spectrum of the active region within a minimum perceptible difference for an industry defined standard observer.