Advanced Materials for Interface Engineering in Optoelectronic Devices

Dear Colleagues,

Interfaces govern the efficiency, stability, and manufacturability of modern optoelectronic devices. In organic and perovskite solar cells, photodetectors, and thin-film transistors, interfacial energetics, passivation chemistry, morphology, and contact selectivity critically determine charge generation, transport, and recombination under realistic thermal, electrical, and photo-oxidative stresses. Recent progress in conjugated polymers, hybrid interlayers, molecular dopants, self-assembled monolayers, and nanostructured oxides—together with scalable coating and printing—has enabled the molecular-level control of interfaces and improved robustness. In parallel, in situ/operando characterization and data-driven approaches are accelerating the discovery of durable materials and reliable process windows.

This Special Issue highlights advances in materials design, processing, characterization, and device integration for interface engineering in optoelectronic devices. We welcome original research, short communications, and authoritative reviews on interlayers and contacts; doping and passivation strategies; morphology/texture control; stability and encapsulation; degradation mechanisms and lifetime testing; and AI-assisted materials and process optimization.

Prof. Dr. Hyeongjin Hwang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.