Статья

Semitransparent Near‐Infrared Organic Photodetectors: Flexible, Large‐Area, and Physical‐Vapor‐Deposited for Versatile Advanced Optical Applications

Yazhong WangDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyTianyi ZhangDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyDinara SamigullinaDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyLouis Conrad WinklerDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyFelix DollingerDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyJonas KublitskiDepartment of Physics Universidade Tecnológica Federal do Paraná (UTFPR) Av. 7 de Setembro 3165 Curitiba 80230‐901 BrazilXiangkun JiaDepartment of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 Singapore 117585 SingaporeRan JiDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanySebastian ReinekeDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyDonato SpoltoreDepartment of Mathematical, Physical and Computer Sciences University of Parma V.le delle Scienze 7/A Parma 43124 ItalyKarl LeoDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden GermanyJohannes BenduhnDresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute of Applied Physics Technische Universität Dresden Nöthnitzer Str. 61 01187 Dresden Germany

2024en

ABI

Аннотация

Abstract Organic photodetectors (OPDs) have experienced remarkable performance improvements over the past decade thanks to significant advancements in organic material synthesis and device architecture engineering. In this study, high‐performance near‐infrared (NIR) OPDs with versatile advanced properties, including large detection areas, mechanical flexibility, and high transparency are realized. By incorporating a thin photo‐absorbing layer, functional blocking layers with a large energy gap, and semitransparent electrodes, the OPDs achieve an average visible transmittance (AVT) of up to 53.4% and color rendering index (CRI) of up to 95 within the human vision photopic response window of 380–780 nm. Both the small (6.44 mm 2 ) and large (256 mm 2 ) detection‐area semitransparent OPDs demonstrate an impressive external quantum efficiency (EQE) of 34% and 36%, and specific detectivity ( D *) of 1.4 × 10 13 and 1.1 × 10 12 Jones, respectively, comparable to silicon‐based inorganic photodetectors. As application demonstrations, OPDs with rigid and flexible substrates are employed for NIR imaging and biosensing, respectively. Notably, the flexible semitransparent OPDs are utilized as signal receivers in conjunction with semitransparent NIR organic light‐emitting diodes (OLEDs) operating as signal producers, demonstrating the feasibility of invisible optical communication. These OPDs represent the best‐performing see‐through devices with flexibility, making them promising candidates for integratable, bio‐compatible, and invisible optical‐sensing applications.

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Идентификаторы

DOI: 10.1002/adfm.202313689

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar