Edward Hartley Sargent

Improved Crystallization-Front Dynamics Reduce Buried-Interface Defects in Perovskite Solar Cells

Abstract Inverted perovskite solar cells have achieved substantial efficiency gains owing to advances in surface passivation; as a result, progress is now limited by buried defects at the perovskite/hole transport layer (HTL) interface. During top-down perovskite crystallization,...

Metformin Spacer Conformation Is a Structure-Directing Element in a 2D Perovskite with Strong X-ray Response

Abstract Direct X-ray detection in two-dimensional (2D) hybrid metal-halide perovskites is dictated by the interplay between organic spacer chemistry, crystal structure, and charge transport. Among these materials, the metformin (MF2+)-based perovskite MFPbI4 has recently emerged...

Gold‐Stabilized Copper Enables Anodic Hydrogen Evolution for Ultralow‐Voltage CO‐to‐Ethylene Electrolysis

ABSTRACT Electrochemical upgrading from CO 2 and CO to ethylene has typically been coupled with the oxygen evolution reaction (OER), whose high standard reduction potential leads to full‐cell voltages above 2.2 V at 200 mA/cm 2 . Here we explored an alternative anodic reaction, w...