High sensitivity and fast response sol-gel ZnO electrode buffer layer based organic photodetectors with large linear dynamic range at low operating voltage

2018 ◽  
Vol 56 ◽  
pp. 51-58 ◽  
Author(s):  
Tiening Wang ◽  
Yue Wang ◽  
Lijie Zhu ◽  
Longfeng Lv ◽  
Yufeng Hu ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Dynamic Range ◽  
Sol Gel ◽  
High Sensitivity ◽  
Fast Response ◽  
Operating Voltage ◽  
Linear Dynamic Range ◽  
Linear Dynamic ◽  
Organic Photodetectors

scholarly journals High sensitivity, fast response and low operating voltage organic photodetectors by incorporating a water/alcohol soluble conjugated polymer anode buffer layer

RSC Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1743-1748 ◽  
Author(s):  
Tiening Wang ◽  
Yufeng Hu ◽  
Zhenbo Deng ◽  
Yue Wang ◽  
Longfeng Lv ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Conjugated Polymer ◽  
High Sensitivity ◽  
Fast Response ◽  
Operating Voltage ◽  
Anode Buffer Layer ◽  
Organic Photodetectors ◽  
Water Alcohol

We demonstrate the high sensitivity, fast response and low operating voltage organic photodetectors by incorporating an anode buffer layer.

Highly Sensitive and Broadband Organic Photodetectors with Fast Speed Gain and Large Linear Dynamic Range at Low Forward Bias

Small ◽  
2017 ◽  
Vol 13 (24) ◽  
pp. 1603260 ◽  
Author(s):  
Riming Nie ◽  
Xianyu Deng ◽  
Lei Feng ◽  
Guiguang Hu ◽  
Yangyang Wang ◽  
...  
Keyword(s):  
Dynamic Range ◽  
Forward Bias ◽  
Linear Dynamic Range ◽  
Linear Dynamic ◽  
Fast Speed ◽  
Highly Sensitive ◽  
Organic Photodetectors

scholarly journals Doubly resonant sub-ppt photoacoustic gas detection with eight decades dynamic range

2021 ◽  
Author(s):  
Zhen Wang ◽  
Hui Zhang ◽  
Qiang Wang ◽  
Simone Borri ◽  
Iacopo Galli ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Near Infrared ◽  
Dynamic Range ◽  
High Sensitivity ◽  
Fast Response ◽  
Wide Dynamic Range ◽  
Acoustic Resonators ◽  
Light Waves ◽  
Energy Environment ◽  
Small Footprint

Abstract Gas sensors with high sensitivity, wide dynamic range, high selectivity, fast response, and small footprint are desirable across a broad range of applications in energy, environment, safety, and public health. However, designing a compact gas sensor with ultra-high sensitivity and ultra-wide dynamic range remains a challenge. Laser-based photoacoustic spectroscopy (PAS) is a promising candidate to fill this gap. Herein, we report a novel method to simultaneously enhance the acoustic and light waves for PAS using integrated optical and acoustic resonators. This increases sensitivity by more than two orders of magnitude and extends the dynamic range by more than three orders of magnitude, compared with the state-of-the-art photoacoustic gas sensors. We demonstrate the concept by exploiting a near-infrared absorption line of acetylene (C2H2) at 1531.59 nm, achieving a detection limit of 0.5 parts-per-trillion (ppt), a noise equivalent absorption (NEA) of 5.7×10-13 cm-1 and a linear dynamic range of eight orders of magnitude. This study enables the realization of compact ultra-sensitive and ultra-wide-dynamic-range gas sensors in a number of different fields.

Convenient Fiber-Optic-Based Sample Cell for Shpol'skii and Low-Temperature Phosphorescence Spectrometry

1989 ◽  
Vol 43 (3) ◽  
pp. 422-425 ◽  
Author(s):  
Richard T. Madison ◽  
Mary K. Carroll ◽  
Gary M. Hieftje
Keyword(s):  
Low Temperature ◽  
Fiber Optic ◽  
Dynamic Range ◽  
Detection Limits ◽  
Linear Dynamic Range ◽  
Sample Cell ◽  
Linear Dynamic ◽  
Light Guides

A sample cell for observing the Shpol'skii effect at 77 K is described and analytically assessed. The cell employs fiber-optic light guides to transport excitation and emission radiation. The system is compact, inexpensive, and simple to construct from commercially available laboratory components, and it alleviates several problems inherent in conventional refrigerated-cell designs. Detection limits for anthracene, coronene, and pyrene obtained with the sample cell are 8.8 × 10−8 M, 8.4 × 10−7 M, and 3.5 × 10−7 M, respectively. The linear dynamic range for each compound is 2 to 3 orders of magnitude.

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