Spray-Coated Organic Photodetectors and Image Sensors with Silicon-Like Performance

2018 ◽  
Vol 4 (1) ◽  
pp. 1800158 ◽  
Author(s):  
Markus Biele ◽  
Cindy Montenegro Benavides ◽  
Judith Hürdler ◽  
Sandro F. Tedde ◽  
Christoph J. Brabec ◽  
...  
Keyword(s):  
Image Sensors ◽  
Organic Photodetectors

scholarly journals Organic Photodetectors and their Application in Large Area and Flexible Image Sensors: The Role of Dark Current

2019 ◽  
Vol 30 (20) ◽  
pp. 1904205 ◽  
Author(s):  
Giulio Simone ◽  
Matthew J. Dyson ◽  
Stefan C. J. Meskers ◽  
René A. J. Janssen ◽  
Gerwin H. Gelinck
Keyword(s):  
Dark Current ◽  
Image Sensors ◽  
Large Area ◽  
Organic Photodetectors

scholarly journals Carrier Blocking Layer Materials and Application in Organic Photodetectors

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1404
Author(s):  
Yi Li ◽  
Hu Chen ◽  
Jianhua Zhang
Keyword(s):  
High Performance ◽  
Spectral Response ◽  
Critical Role ◽  
Cost Effective ◽  
Image Sensors ◽  
Large Area ◽  
Solution Processes ◽  
Response Range ◽  
Long Time ◽  
Organic Photodetectors

As a promising candidate for next-generation photodetectors, organic photodetectors (OPDs) have gained increasing interest as they offer cost-effective fabrication methods using solution processes and a tunable spectral response range, making them particularly attractive for large area image sensors on lightweight flexible substrates. Carrier blocking layers engineering is very important to the high performance of OPDs that can select a certain charge carriers (holes or electrons) to be collected and suppress another carrier. Carrier blocking layers of OPDs play a critical role in reducing dark current, boosting their efficiency and long-time stability. This Review summarizes various materials for carrier blocking layers and some of the latest progress in OPDs. This provides the reader with guidelines to improve the OPD performance via carrier blocking layers engineering.

Object Detection Using an Ideal Observer Model

2020 ◽  
Vol 2020 (16) ◽  
pp. 41-1-41-7
Author(s):  
Orit Skorka ◽  
Paul J. Kane
Keyword(s):  
Object Detection ◽  
Matched Filter ◽  
Image Sensors ◽  
Ideal Observer ◽  
Noise Power ◽  
Relative Evaluation ◽  
Detection And Identification ◽  
Cross Correlation Analysis ◽  
Observer Model ◽  
The Ideal

Many of the metrics developed for informational imaging are useful in automotive imaging, since many of the tasks – for example, object detection and identification – are similar. This work discusses sensor characterization parameters for the Ideal Observer SNR model, and elaborates on the noise power spectrum. It presents cross-correlation analysis results for matched-filter detection of a tribar pattern in sets of resolution target images that were captured with three image sensors over a range of illumination levels. Lastly, the work compares the crosscorrelation data to predictions made by the Ideal Observer Model and demonstrates good agreement between the two methods on relative evaluation of detection capabilities.

Panchromatic organic photodetectors with SubPc as a non-fullerene acceptor

2019 ◽  
Vol 6 (10) ◽  
pp. 105103 ◽  
Author(s):  
Dasheng Su ◽  
Jinjin Dong ◽  
Lidan Wang ◽  
Zisheng Su
Keyword(s):  
Organic Photodetectors

scholarly journals 1/f Noise Modelling and Characterization for CMOS Quanta Image Sensors

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5459
Author(s):  
Wei Deng ◽  
Eric R. Fossum
Keyword(s):  
Analog Circuits ◽  
Image Sensor ◽  
Image Sensors ◽  
Correlated Double Sampling ◽  
Cmos Image Sensors ◽  
Source Follower ◽  
Cmos Analog Circuits ◽  
Different Origins ◽  
Noise Models ◽  
Fitting Model

This work fits the measured in-pixel source-follower noise in a CMOS Quanta Image Sensor (QIS) prototype chip using physics-based 1/f noise models, rather than the widely-used fitting model for analog designers. This paper discusses the different origins of 1/f noise in QIS devices and includes correlated double sampling (CDS). The modelling results based on the Hooge mobility fluctuation, which uses one adjustable parameter, match the experimental measurements, including the variation in noise from room temperature to –70 °C. This work provides useful information for the implementation of QIS in scientific applications and suggests that even lower read noise is attainable by further cooling and may be applicable to other CMOS analog circuits and CMOS image sensors.

Strong dark current suppression in flexible organic photodetectors by carbon nanotube transparent electrodes

Nano Today ◽  
2021 ◽  
Vol 37 ◽  
pp. 101081
Author(s):  
Woongsik Jang ◽  
Byung Gi Kim ◽  
Seungju Seo ◽  
Ahmed Shawky ◽  
Min Soo Kim ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Dark Current ◽  
Transparent Electrodes ◽  
Organic Photodetectors
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