UV dosimeter with color change

US10837826B2 · kind B2 · utility

Assignee

• THUERINGISCHES INSTITUTE FUER TEXTILE- UND KUNSTOSTOFF-FORSCHUNG E.V. · DE

Inventors

• Mario SCHRÖDNER · Rudolstadt, DE
• Hannes Schache · Rudolstadt, DE
• Lars Blankenburg · Kahla, DE
• Gulnara Konkin · Rudolstadt, DE

Key dates

• Filing date: Jun 30, 2017
• Grant date: Nov 17, 2020
• Expiry date: Jun 30, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P70/50
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The invention discloses a flexible, energy-self-sufficient UV dosimeter which optically indicates the absorbed dose on the basis of the intensity and duration of the irradiation via a color change. The invention contains one or more UV dosimeter modules. Exemplary UV dosimeter modules include at least one UV-sensitive photodiode (common electrode (11), hole conductor layer (21), UV absorber layer (22), cathode (23)) and an electrochromic element (common electrode (11), ion storage layer (12), electrolyte layer (13), electrochromic layer made of redox active material (14), transparent electrode (15)), between which an insulator (4) and a conductor track (5) are arranged. The electrochromic element accumulates the charge generated by the UV-sensitive photodiode and indicates this by means of a color change. The UV dosimeter can be produced as an integrated circuit using thin-film technology by successively applying and structuring organic or inorganic functional layers.