Organic-based tristimuli colorimeter

Antognazza, Maria Rosa; Scherf, Ullrich; Monti, P.; Lanzani, Guglielmo

doi:10.1063/1.2723653

Cited by 36 publications

(35 citation statements)

References 23 publications

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“…5b), have also been implemented based on organic semiconductors [103][104][105][106] or CQDs. 44 This approach, which results in increased sensor resolution, requires a careful design in order to avoid vertical colour-crossover arising from incomplete absorption.…”

Section: Selective Photodetection and Charge Collection Narrowing (Ccn)mentioning

confidence: 99%

Solution-processed semiconductors for next-generation photodetectors

et al. 2017

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Section: Selective Photodetection and Charge Collection Narrowing (Ccn)mentioning

confidence: 99%

Solution-processed semiconductors for next-generation photodetectors

et al. 2017

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“…Some of the major challenges associated with this technology are related to improving the sensitivity as up to two thirds of the incident light is typically absorbed by the color fi lters, [ 47 ] which limits the quantum effi ciency and spatial resolution of the individual pixel sensors, and puts a constraint on reduction of the pixel size. [ 47,48 ] Furthermore, the demosaicing processes associated with the reconstruction of the fi nal image can result in degradation of the color quality [ 47,48 ] and "color constancy" (the perceived color of objects remaining constant under varying illumination conditions) [49][50][51] of the fi nal image. The second method involves taking three sequential exposures, each with a different optical fi lter (RGB) mounted in a color wheel, before combining the three separate images to form the fi nal picture (Figure 2 b).…”

Section: Reviewmentioning

confidence: 99%

Organic Photodiodes: The Future of Full Color Detection and Image Sensing

et al. 2016

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Major growth in the image sensor market is largely as a result of the expansion of digital imaging into cameras, whether stand-alone or integrated within smart cellular phones or automotive vehicles. Applications in biomedicine, education, environmental monitoring, optical communications, pharmaceutics and machine vision are also driving the development of imaging technologies. Organic photodiodes (OPDs) are now being investigated for existing imaging technologies, as their properties make them interesting candidates for these applications. OPDs offer cheaper processing methods, devices that are light, flexible and compatible with large (or small) areas, and the ability to tune the photophysical and optoelectronic properties - both at a material and device level. Although the concept of OPDs has been around for some time, it is only relatively recently that significant progress has been made, with their performance now reaching the point that they are beginning to rival their inorganic counterparts in a number of performance criteria including the linear dynamic range, detectivity, and color selectivity. This review covers the progress made in the OPD field, describing their development as well as the challenges and opportunities.

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“…Red light photodetectors are useful for short-distance optical communications 11 and they also form a critical component in three-and-four-colour photosensors 9,12 .…”

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confidence: 99%

Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes

et al. 2015

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Spectrally selective light detection is vital for full-colour and near-infrared (NIR) imaging and machine vision. This is not possible with traditional broadband-absorbing inorganic semiconductors without input filtering, and is yet to be achieved for narrowband absorbing organic semiconductors. We demonstrate the first sub-100 nm full-width-at-half-maximum visible-blind red and NIR photodetectors with state-of-the-art performance across critical response metrics. These devices are based on organic photodiodes with optically thick junctions. Paradoxically, we use broadband-absorbing organic semiconductors and utilize the electro-optical properties of the junction to create the narrowest NIR-band photoresponses yet demonstrated. In this context, these photodiodes outperform the encumbent technology (input filtered inorganic semiconductor diodes) and emerging technologies such as narrow absorber organic semiconductors or quantum nanocrystals. The design concept allows for response tuning and is generic for other spectral windows. Furthermore, it is materialagnostic and applicable to other disordered and polycrystalline semiconductors.

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Organic-based tristimuli colorimeter

Cited by 36 publications

References 23 publications

Solution-processed semiconductors for next-generation photodetectors

Solution-processed semiconductors for next-generation photodetectors

Organic Photodiodes: The Future of Full Color Detection and Image Sensing

Narrowband light detection via internal quantum efficiency manipulation of organic photodiodes

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