Method and device for using an organic underlayer to enable crystallization of disordered organic thin films

US10615345B2 · kind B2 · utility

Assignee

• THE TRUSTEES OF PRINCETON UNIVERSITY · US

Inventors

• Barry Rand · Princeton, US
• Michael Fusella · Lawrenceville, US
• Siyu Yang · Redmond, US

Key dates

• Filing date: Jun 2, 2017
• Grant date: Apr 7, 2020
• Expiry date: Jun 2, 2037

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/40

Abstract

Measurements on organic single crystals reveal remarkable optical and electrical characteristics compared to disordered films but practical device applications require uniform, pinhole-free films. Disclosed herein is a process to reliably convert as-deposited amorphous thin films to ones that are highly crystalline, with grains on the order of hundreds of microns. The disclosed method results in films that are pinhole-free and that possess grains that individually are single crystal domains.