Metal–organic frameworks for electronics: emerging second order nonlinear optical and dielectric materials

Abstract

Metal–organic frameworks (MOFs) have been intensively studied over the past decade because they represent a new category of hybrid inorganic–organic materials with extensive surface areas, ultrahigh porosity, along with the extraordinary tailorability of structure, shape and dimensions. In this highlight, we summarize the current state of MOF research and report on structure–property relationships for nonlinear optical (NLO) and dielectric applications. We focus on the design principles and structural elements needed to develop potential NLO and low dielectric (low-κ) MOFs with an emphasis on enhancing material performance. In addition, we highlight experimental evidence for the design of devices for low-dielectric applications. These results motivate us to develop better low-dielectric and NLO materials and to perform in-depth studies related to deposition techniques, patterning and the mechanical performance of these materials in the future.

A Highly Efficient White Luminescent Zinc (II) Based Metallopolymer by RGB Approach

“…In addition, zinc ion as a biocompatible low-cost metal is one of the most viable alternatives to rare earths. Due to its closed-shell pattern, zinc ion can preserve or enhance PL performances of the chelating ligands, and this causes a growing interest for industrial applications [29,30,31,32,33]. Processable, stable and cheap PL metallopolymers can be obtained by assembly organic moieties and zinc cations.…”

Understanding and Controlling the Dielectric Response of Metal–Organic Frameworks

“…The ability to customise the building blocks has opened many new avenues of research, such as the use of MOFs in optical and microelectronics . This area of interest is stimulated by the emergence of next‐generation photonics, such as optical sensors and switches and requires the introduction of new ultra‐low‐ κ dielectric materials ( κ <1.9) to be used as an interlayer for semiconducting devices . The International Technology Roadmap for Semiconductors stated that desirable materials should possess a crystalline structure, low density (high porosity), low moisture absorption and high chemical and thermal stability .…”

Calcium and Strontium Coordination Polymers Based on Rigid and Flexible Aromatic Dicarboxylates: Synthesis, Structure, Photoluminescence and Dielectric Properties

“…Low‐κ materials are potential candidates for interlayer dielectrics with high thermal stability, electrically insulating property, high mechanical strength and good adhesion to neighbouring layers . Alkaline‐earth metal coordination polymers have attracted considerable attention for exploring dielectric and ferroelectric properties . Group II metal ions have comparatively larger size and show greater affinity towards the oxygen donor of a ligand molecule and thus provide unique opportunities for the formation of rigid frameworks .…”