Vacuum-deposited organic photodetectors utilizing non-fullerene acceptors for enhanced detectivity in the green visible light spectrum
學年 112
學期 1
出版(發表)日期 2023-10-04
作品名稱 Vacuum-deposited organic photodetectors utilizing non-fullerene acceptors for enhanced detectivity in the green visible light spectrum
作品名稱(其他語言)
著者 Septian, M Rivaldi Ali; Estrada, Richie; Lee, Chih-Chien; Chen, Chih-Hsin; Iskandar, Johan; Amin, Nurul Ridho Al; Akbar, Abdul Khalik; Uma, Kasimayan; Liu, Shun-Wei
單位
出版者
著錄名稱、卷期、頁數 Journal of Materials Chemistry C 11(48), p.16972–16981
摘要 Boron subphthalocyanine (SubPc) is a small molecule active material that absorbs visible light efficiently at wavelengths ranging from 500 to 600 nm. Recent studies have demonstrated that blending SubPc and C60 (fullerene) as the active layer in organic photodetectors (OPDs) results in a high dark current and decreases detectivity. Moreover, N,N′-bis(naphthalen-1-yl)-N,N′-bis(phenyl)benzidine (NPB) can be employed as a blocking layer and as a donor on the active layer. In this study, the performance of OPDs is investigated using non-fullerene (NPB : SubPc) and fullerene (SubPc : C60) active layers. The OPD utilizing a non-fullerene-based device (NPB : SubPc) with a ratio of 1 : 3 exhibits high performance across various parameters. It demonstrated a low dark current density of 1.32 × 10−9 A cm−2, an external quantum efficiency (EQE) of 51.85%, a responsivity of 0.22 A W−1, and a high detectivity of 1.07 × 1013 Jones at a wavelength of 530 nm. Moreover, the device showed a linear dynamic range (LDR) of 109.29 dB, a frequency cut-off of 263.04 kHz, and a transient photovoltage in formed rise and fall times of 2.74 μs and 1.51 μs, respectively. These findings suggest that the developed device could be suitable for future fingerprint recognition, owing to its ability to detect visible green light.
關鍵字
語言 en
ISSN 2050-7534
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 GBR
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/125615 )