Abstract: The disclosed technology includes an infrared-emitting quantum dot comprising a core comprising a first semiconductor material, a shell comprising a second semiconductor material, and a gradient interface between the core and the shell. The disclosed technology also includes methods of manufacturing the same.

Abstract: The disclosed technology includes an infrared-emitting quantum dot comprising a core comprising a first semiconductor material, a shell comprising a second semiconductor material, and a gradient interface between the core and the shell. The disclosed technology also includes methods of manufacturing the same.

Abstract: The present invention relates to polymers, nanomaterials, and methods of making the same. Various embodiments provide an amphiphilic multi-arm copolymer. The copolymer includes a core unit and a plurality of amphiphilic block copolymer arms. Each block copolymer arm is substituted on the core unit. Each block copolymer arm includes at least one hydrophilic homopolymer subunit and at least one hydrophobic homopolymer subunit. In some examples, the copolymer can include a star-like or bottlebrush-like block copolymer, and can include a Janus copolymer. Various embodiments provide a nanomaterial. In some examples, the nanomaterial can include Janus nanomaterials, and can include nanoparticles, nanorods, or nanotubes. The nanomaterial includes the amphiphilic multi-arm copolymer and at least one inorganic precursor. The inorganic precursor can be coordinated to at least one homopolymer subunit of one of the amphiphilic block copolymer arms to form the nanomaterial.

Abstract: Highly ordered anodic TiO2 nanotube arrays fabricated by electrochemical anodization and sensitized with dye to yield dye-sensitized TiO2 nanotube solar cells is described. With inorganic compound (such as TiCl4) treatment, in conjunction with oxygen plasma exposure under optimized conditions, dye-sensitized TiO2 nanotube solar cells produced using TiO2 nanotube arrays exhibited a pronounced power conversion efficiency.

Abstract: The present invention relates to polymers, nanomaterials, and methods of making the same. Various embodiments provide an amphiphilic multi-arm copolymer. The copolymer includes a core unit and a plurality of amphiphilic block copolymer arms. Each block copolymer arm is substituted on the core unit. Each block copolymer arm includes at least one hydrophilic homopolymer subunit and at least one hydrophobic homopolymer subunit. In some examples, the copolymer can include a star-like or bottlebrush-like block copolymer, and can include a Janus copolymer. Various embodiments provide a nanomaterial. In some examples, the nanomaterial can include Janus nanomaterials, and can include nanoparticles, nanorods, or nanotubes. The nanomaterial includes the amphiphilic multi-arm copolymer and at least one inorganic precursor. The inorganic precursor can be coordinated to at least one homopolymer subunit of one of the amphiphilic block copolymer arms to form the nanomaterial.

Abstract: The present invention relates to polymers, nanomaterials, and methods of making the same. Various embodiments provide an amphiphilic multi-arm copolymer. The copolymer includes a core unit and a plurality of amphiphilic block copolymer arms. Each block copolymer arm is substituted on the core unit. Each block copolymer arm includes at least one hydrophilic homopolymer subunit and at least one hydrophobic homopolymer subunit. In some examples, the copolymer can include a star-like or bottlebrush-like block copolymer, and can include a Janus copolymer. Various embodiments provide a nanomaterial. In some examples, the nanomaterial can include Janus nanomaterials, and can include nanoparticles, nanorods, or nanotubes. The nanomaterial includes the amphiphilic multi-arm copolymer and at least one inorganic precursor. The inorganic precursor can be coordinated to at least one homopolymer subunit of one of the amphiphilic block copolymer arms to form the nanomaterial.

Abstract: Highly ordered anodic TiO2 nanotube arrays fabricated by electrochemical anodization and sensitized with dye to yield dye-sensitized TiO2 nanotube solar cells is described. With inorganic compound (such as TiCl4) treatment, in conjunction with oxygen plasma exposure under optimized conditions, dye-sensitized TiO2 nanotube solar cells produced using TiO2 nanotube arrays exhibited a pronounced power conversion efficiency.

Abstract: Methods, apparatus, and systems of fabricating ordered or hierarchically ordered small-scale structures (e.g. micro- or sub-micro size) without the need for lithographic techniques or external fields. The methods use irreversible solvent evaporation to deposit the solute on a surface. A spherical lens is brought down into contact with the droplet. By selection and control of one or more relevant parameters, various characteristics or features of the resulting structures can be controlled. Nano-scale structures or materials can be formed or included in the micro- or sub-micro-scale formed structures. The nano-scale structures or materials can self-assembly in hierarchical order by selection and control of certain process parameters.