Department of Chemistry, Emory University 30322, USA. E-mail: [email protected] Hubei Key Laboratory of Low Dimensiona Hubei University of Arts and Science, Xiangy College of Electronic Engineering, Heilong China Department of Chemistry, The Vanderb Engineering, Vanderbilt University, Nashvill † Electronic supplementary information characterizations, TA set-ups, addition kinetics, tting procedur...

Energy loss due to carrier recombination is among the major factors limiting the performance of TiO2/PbS colloidal quantum dot (QD) heterojunction solar cells. In this work, enhanced photocurrent is achieved by incorporating another type of hole-transporting QDs, Zn-doped CuInS2 (Zn-CIS) QDs into the PbS QD matrix. Binary QD solar cells exhibit a reduced charge recombination associated with the...

Polycrystalline CuInS(2) films were fabricated by sulfurization of electrodeposited Cu and In metallic precursor films. Structural analyses revealed that the CuInS(2) film formed compact agglomerates of crystallites with grain sizes of ca. 0.5-1.5 μm. Photoelectrochemical characterization revealed that the film was p-type with a flat band potential of 0.3-0.4 V (vs Ag/AgCl at pH 4), which is su...

In Alzheimer’s disease (AD) two aberrant proteins amyloid plaques (Aβ) and Neurofibrillary tangles (NFTs) have been identified. Aβ peptide is produced from soluble amyloid precursor protein (SAPP) as a result of two sequential proteolysis steps by β-secretase [beta-site Amyloid Precursor Protein Cleaving Enzyme (BACE)] then γ-secretase. NFTs, are made up of several proteins but primarily hypoph...

We propose a general reaction mechanism for the pyridine (Py)-catalyzed reduction of CO2 over GaP(111), CdTe(111), and CuInS2(112) photoelectrode surfaces. This mechanism proceeds via formation of a surface-bound dihydropyridine (DHP) analogue, which is a newly postulated intermediate in the Py-catalyzed mechanism. Using density functional theory, we calculate the standard reduction potential r...

We report a highly bright and stable aqueous dispersion of CuInS2/ZnS (CIS/ZnS) nanocrystals (NCs) using surfactant-assisted microemulsion and cold treatment. CIS/ZnS NCs were facilely synthesized via a stepwise, consecutive hybrid flow reactor approach. To stabilize the optical properties of hydrophobic CIS/ZnS NCs, cetyltrimethylammonium bromide (CTAB) was chosen as a matrix for aqueous phase...

Sulfide chalcopyrite solar cells are receiving renewed interest since they have reached a certified efficiency above 15%. Due to their wider bandgap, interesting candidates for top in tandem applications. They share many properties with the much deeper studied selenide chalcopyrites, but also some important differences. While structure of shallow and deep defects appears very similar, phase dia...