Honda Motor Co., Ltd.

Utah State University

Temple University

Gugang Chen

Shutang Chen

Yi Rao

Xia Li

Avetik R Harutyunyan

Elena Mora Pigos

Tereza Paronyan

Aspects of the present disclosure generally relate to short-wave infrared (SWIR) materials, SWIR detectors, and methods of use. In an aspect, a SWIR detector is provided and includes a conductive layer disposed over a first portion of a substrate, the conductive layer having a trench therein, and a hole transport layer disposed over at least a second portion of the substrate and within the trench of the conductive layer. The SWIR detector further includes a light conversion layer disposed over at least a portion of the hole transport layer, the light conversion layer comprising a composition having the formula ABMX, wherein: A is an organic group or ion thereof; B is an organic group, an inorganic group, or ion thereof; M is a metal or ion thereof; X is a halogen or ion thereof; and a, b, c, and d are numbers expressing amounts of A, B, M, and X.

Short-wave infrared materials, detectors, and methods

The present disclosure is directed to methods of making Pb-free perovskites for short-wave IR (SWIR) devices and to various Pb-free perovskite materials disclosed herein. The perovskites disclosed herein have improved chemical stability and long-term stability, while the production methods disclosed herein have improved safety and lower cost.

Pb-free perovskite materials for short wave IR devices

The present disclosure relates to a method for synthesizing Pd nanocubes having an average size less than 10 nm. The reaction temperature, reaction time, and molar ratios of TOP/Pd-OLA can be used to control size and formation of the Pd nanocubes. The present disclosure is also directed to Pd nanocubes, less than 10 nm, having face centered cubic structures. Pd nanocubes of the present disclosure are an effective catalyst for COreduction reaction with excellent selectivity for CO. Small sized Pd nanocubes can be used not only as the seeds to prepare other metal nanocubes, but can also as powerful catalysts for a wide variety of reactions in different industrial processes.

Synthetic method for preparing small palladium nanocubes

Aspects of the present disclosure generally relate to semiconductor nanoparticles, metal-semiconductor hybrid structures, processes for producing semiconductor nanoparticles, processes for producing metal-semiconductor hybrid structures, and processes for producing conversion products. In an aspect is provided a process for producing a metal-semiconductor hybrid structure that includes introducing a first precursor comprising a metal from Group 11-Group 14 to an amine and an anion precursor to form a semiconductor nanoparticle comprising the Group 11-Group 14 metal; introducing a second precursor comprising a metal from Group 7-Group 11 to the semiconductor nanoparticle to form a metal-semiconductor mixture; and introducing the metal-semiconductor mixture to separation conditions to produce the metal-semiconductor hybrid structure. In another aspect is provided a metal-semiconductor hybrid structure that includes a first component comprising a metal from Group 11-Group 14 and an element from Group 15-Group 16; and a second component comprising a metal from Group 7-Group 11.

Metal-semiconductor hybrid structures, syntheses thereof, and uses thereof

A hollow, two-dimensional nanostructure having a plurality of first metal atoms and a plurality of second metal atoms, the first metal being copper, nickel, cobalt, iron, or a combination thereof and the second metal being gold, platinum, palladium, or a combination thereof.

General synthetic strategy for fabrication of multi-metallic nanostructures

Aspects described herein generally relate to bimetallic structures, syntheses thereof, and uses thereof. In an embodiment, a process for forming a bimetallic nanoframe is provided. The process includes forming a first bimetallic structure by reacting a first precursor comprising platinum (Pt) and a second precursor comprising a Group 8-11 metal (M), wherein Mis free of Pt; reacting a third precursor comprising Pt with the first bimetallic structure to form a second bimetallic structure, the second bimetallic structure having a higher molar ratio of Pt to Group 8-11 metal than the first bimetallic structure; and introducing the second bimetallic structure with an acid to form the bimetallic nanoframe, the bimetallic nanoframe having a higher molar ratio of Pt to Group 8-11 metal than that of the second bimetallic structure, the bimetallic nanoframe having the formula: (Pt)(M), wherein: a is the amount of Pt; b is the amount of M.

Synthesis of bimetallic structures for use as catalysts

A method of electrochemical reduction of COincludes the use of a catalyst of Cu/CuO particles including Cu/CuO interfaces. The catalyst may be included in an electrochemical cell for the conversion of COto value-added products. The electrochemical cell may include an anode, a cathode including the Cu/CuO particles including Cu/CuO interfaces, and an aqueous medium containing COor CO. The COor COis reduced by contacting the Cu/CuO particles with the aqueous medium while supplying electricity to the cell. The conversion of COby the electrochemical reduction thereof has higher Faradaic Efficiency due to the Cu/CuO interfaces in the Cu/CuO particles.

Cu/CuO interface nanostructures for electrochemical COreduction

Aspects of the present disclosure generally relate to copper-containing bimetallic structures, to processes for producing the copper-containing bimetallic structure, and to uses of the copper-containing bimetallic structures as, e.g., catalysts. In an aspect, a process for forming a bimetallic structure is provided. The process includes forming a mixture comprising a first precursor and a second precursor, the first precursor comprising copper, the second precursor comprising a phosphine. The process further includes introducing a third precursor with the mixture to form the bimetallic structure, the third precursor comprising a Group 8-10 metal, the bimetallic structure comprising copper (Cu), the Group 8-10 metal (M), phosphorous (P), and nitrogen (N), the bimetallic structure having the formula (Cu)(M)(P)(N), wherein a molar ratio of a:b is from about 1:99 to about 99:1, and a molar ratio of a:(c+d) is from about 500:1 to about 1:1.

Copper-containing bimetallic structures, syntheses thereof, and uses thereof

All inorganic perovskites for short-wave IR (SWIR) devices having improved chemical stability and long-term stability. Improved methods of making all inorganic perovskites for short-wave IR (SWIR) devices are also disclosed herein.

All inorganic perovskite materials for short wave IR devices

A method for preparing a hollow multi-metallic nanostructure, the method including the steps of providing a first metal nanostructure having a plurality of first metal atoms, and performing a synthetic strategy, the synthetic strategy including replacing a portion of the plurality of first metal atoms with a corresponding number of second metal ions, and promoting first metal atom diffusion to provide the hollow multi-metallic nanostructure.

A method of electrochemical reduction of carbon dioxide includes the use of multi-faceted CuO crystals as a catalyst to convert COto value-added products. An electrochemical cell for the electrochemical reduction of carbon dioxide includes a cathode including the multi-faceted CuO crystals. The multi-faceted CuO crystals have at least two different types of facets with different Miller indices. The multi-faceted CuO crystals include steps and kinks present at the transitions between the different types of facets. These steps and kinks improve the Faradaic Efficiency of the conversion of carbon dioxide. The multi-faceted CuO crystals may be nanosized. The multi-faceted CuO crystals may include 18-facet, 20-facet, and/or 50-facet CuO crystals.

Growing community of inventors

Powell, OH, United States of America

Gugang Chen