3D Printed Masks and Transfer Stamping Process to Enable the Fabrication of the Hemispherical Organic Photodiodes. Issue 9 (18th July 2017)

• Record Type: Journal Article
• Authors: Kim, Hyunsoo; Moon, Joosung; Lee, Kyusang; Kanicki, Jerzy
• Is Part Of: Advanced materials technologies. Volume 2:Issue 9(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-07-18
• Subjects: curved -- hemispherical -- stereolithography; Materials science -- Periodicals; Technological innovations -- Periodicals; Materials science; Technological innovations; Periodicals; 620.1105
• DOI: 10.1002/admt.201700090
• Languages: English
• ISSNs: 2365-709X

Abstract

Abstract : This paper demonstrates the methods that allow the fabrication of the hemispherical organic photodiode arrays on curved concave glass substrate. They include a novel 3D shadow mask, fabricated by additive manufacturing process (stereolithography), used for the electrode deposition and 3D shaped polydimethylsiloxane stamp used for organic active layer formation. These techniques allow the direct patterning of the organic photodiode devices on hemispherical substrates without an excessive strain or deformation. It is believed that the developed 3D mask and 3D organic layer transfer printing process can be further utilized for fabrication of various optoelectronic devices which necessitate a free form factor on arbitrary substrates. Abstract : A novel method to fabricate organic photodiode (OPD) passive arrays on a hemispherical substrate with field of view = 120° is demonstrated. 3D shadow mask by sterolithgraphy and 3D polydimethylsiloxane stamp for transfer printing on curved substrate are used to realize the hemispherical organic photodiode. These techniques allow direct patterning of the device electrodes without an excessive strain caused by substrate deformation process.