We were delighted to include several Materials Horizons Focus articles in Issue 1 of Materials Horizons, a special issue in honor of Professor Seth Marder.
Materials Horizons Focus articles are free to access educational articles that address topic areas which are often misunderstood or require greater explanation. You can read the collection of Focus articles below.
Read the below selection of Materials Horizons Focus articles from the special issue in honor of Professor Seth Marder. All Materials Horizons Focus articles are free to access upon publication.

Electronic properties of metal halide perovskites and their interfaces: the basics
Fengshuo Zu, Dongguen Shin and Norbert Koch
Mater. Horiz., 2022, 9, 17-24 DOI: 10.1039/D1MH01106E

Plasmons: untangling the classical, experimental, and quantum mechanical definitions
Rebecca L. M. Gieseking
Mater. Horiz., 2022, 9, 25-42 DOI: 10.1039/D1MH01163D

Scattering techniques for mixed donor–acceptor characterization in organic photovoltaics
Thomas P. Chaney, Andrew J. Levin, Sebastian A. Schneider and Michael F. Toney
Mater. Horiz., 2022, 9, 43-60 DOI: 10.1039/D1MH01219C

Engineering of flat bands and Dirac bands in two-dimensional covalent organic frameworks (COFs): relationships among molecular orbital symmetry, lattice symmetry, and electronic-structure characteristics
Xiaojuan Ni, Hong Li, Feng Liu and Jean-Luc Brédas
Mater. Horiz., 2022, 9, 88-98 DOI: 10.1039/D1MH00935D

Organic building blocks at inorganic nanomaterial interfaces
Yunping Huang, Theodore A. Cohen, Breena M. Sperry, Helen Larson, Hao A. Nguyen, Micaela K. Homer, Florence Y. Dou, Laura M. Jacoby, Brandi M. Cossairt, Daniel R. Gamelin and Christine K. Luscombe
Mater. Horiz., 2022, 9, 61-87 DOI: 10.1039/D1MH01294K
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