Organic Semiconductors: Fast‐Response, Highly Air‐Stable, and Water‐Resistant Organic Photodetectors Based on a Single‐Crystal Pt Complex (Adv. Mater. 2/2020)

Abstract

The success of any organic device ultimately relies on two factors: mobility and stability under ambient and extreme conditions. Toward this goal, in article number 1904634, Norman Lu, Xiaosheng Fang, Jr‐Hau He, and co‐workers develop a Pt‐complex‐based organic semiconductor with high mobility and stability, as an active channel and/or photoabsorption layer for high‐performance organic device applications. The device displays the highest combined efficiency and stability reported to date for an organic semiconductor.

Bridging the gap from single molecule properties to organic semiconductor materials

“…In 1977, the discovery of conducting trans -polyacetylene by Shirakawa et al 1 sparked great interest in the field of organic semiconductors (OSCs), which have become one of the most exciting interdisciplinary research fields from chemistry, physics, engineering to biology. Because of their excellent electronic properties, solution processability, flexibility, and low fabrication cost, OSC materials have been used in the development of advanced electronic devices such as organic light-emitting diodes (OLEDs), 2–5 organic field-effect transistors (OFETs), 6–8 organic photovoltaics (OPVs), 9–12 organic photodetectors (OPDs), 13–16 and organic thermoelectrics (OTEs). 17–20…”

Charge Dynamics in TiO2/MXene Composites

“…In metal–semiconductor heterostructures, strong near-field coupling at the interface of the plasmonic metal and the semiconductor can promote hot-electron transfer. ,,− In addition to being affected by the Schottky barrier height (SBH) and the defect states near the interface, the hot-electron injection process is also affected by interfacial organization and arrangement. − ,, It is believed that increasing the contact area between the metal and semiconductor is an effective approach to improve the charge–separation quantum yield. , …”