Enhancing Specific Detectivity and Device Stability in Vacuum-Deposited Organic Photodetectors Utilizing Nonfullerene Acceptors
學年 113
學期 1
出版（發表）日期 2024-08-31
作品名稱 Enhancing Specific Detectivity and Device Stability in Vacuum-Deposited Organic Photodetectors Utilizing Nonfullerene Acceptors
作品名稱（其他語言）
著者 M. Rivaldi Ali Septian; Richie Estrada; Chih-Chien Lee; Johan Iskandar; Nurul Ridho Al Amin; Johansah Liman; Budi Harsono; Kevin Sutanto; Ping-Chung Yeh; Chih-Hsin Chen; Shun-Wei Liu
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出版者
著錄名稱、卷期、頁數 ACS Appl. Mater. Interfaces 2024, 16, 48034−48042.
摘要 Organic photodetector (OPD) studies have undergone a revolutionary transformation by introducing nonfullerene acceptors (NFAs), which provide substantial benefits such as tunable band gaps and enhanced absorption in the visible spectrum. Vacuum-processed small-molecule-based OPD devices are presented in this study by utilizing a blend of boron subphthalocyanine (SubPc) and chlorinated subphthalocyanine (Cl6SubPc) as the active layer. Four different active layer thicknesses are further investigated to understand the intrinsic phenomena, unveiling the suppression of dark current density while maintaining photoexcitation and charge separation efficiency. Experimental results reveal that, at an applied bias of −3 V, the 50-nm-thick active layer achieves a remarkably low dark current density of 1.002 nA cm–2 alongside a high external quantum efficiency (EQE) of 52.932% and a responsivity of 0.226 A W–1. These impressive performance metrics lead to a specific detectivity of 1.263 × 1013 Jones. Furthermore, the findings offer new insights into intrinsic phenomena within the bulk heterojunction (BHJ), such as thermally generated current and exciton quenching. This integration is potentially well-heeled to revolutionize display technology by combining high-sensitivity photodetection, offering new possibilities for novel display panels with sensing applications.
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語言 zh_TW
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期刊性質 國外
收錄於 SCI
產學合作
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審稿制度 是
國別 USA
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出版型式 ,電子版
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