Development of ZnSe‐based organic–inorganic hybrid UV‐APDs array. Issue 7 (3rd March 2016)

• Record Type: Journal Article
• Authors: Abe, Tomoki; Inoue, Ryoichi; Fujimoto, Takeru; Tanaka, Kenta; Uchida, Shigeto; Kasada, Hirofumi; Ando, Koshi; Ichino, Kunio
• Other Names: Sallet Vincent sponsoringEditor.
• Is Part Of: Physica status solidi. Volume 13:Issue 7/9(2016:Jul.)
• Page Start: 677
• Page End: 682
• Publication Date: 2016-03-03
• Subjects: ZnSSe -- organic−inorganic hybrid structure -- ultraviolet avalanche photodiode; Solid state physics -- Congresses; Solid state physics -- Periodicals; Solid state physics; Conference proceedings; Periodicals; 530.41
• DOI: 10.1002/pssc.201510273
• Languages: English
• ISSNs: 1862-6351

Abstract

Abstract: Recently, we have developed organic (PEDOT:PSS)–inorganic (ZnSSe) hybrid avalanche photodiode (APD) with long life time and its array. In this article, we review the development of the organic–inorganic hybrid‐type ZnSe‐based UV‐APDs array. We used PEDOT:PSS as UV transparent hole‐transport conducting polymer window layers formed by inkjet printing technique. We have successfully fabricated low dark current ultraviolet hybrid APDs. The hybrid APD device has exhibited very low voltage APD operation at 29 V and extremely low dark current of 10 ‐11 A/mm 2 in the avalanche breakdownregion. The hybrid APD also has shown maximum multiplication factor of 45 and high sensitivity ∼ 3 A/W at the ultraviolet region (∼ 300 nm). A stable device operation is established using polyimide passivation and sealed package with N2 atmosphere. We also demonstrated integrated devices operation in APD mode with very small photosignal cross‐talk of ‐50 dB. The tail of current‐profile was determined as 8 μm by using in‐plane electron‐beam induced current (EBIC) measurement. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)