A 128×96 Pixel Stack-Type Color Image Sensor: Stack of Individual Blue-, Green-, and Red-Sensitive Organic Photoconductive Films Integrated with a ZnO Thin Film Transistor Readout Circuit

Seo, Hokuto; Aihara, Satoshi; Watabe, Toshihisa; Ohtake, Hiroshi; Sakai, Takeyasu; Kubota, Minoru; Egami, Norifumi; Hiramatsu, Takeshi; Matsuda, Tokiyoshi; Furuta, Mamoru; Hirao, Takashi

doi:10.7567/jjap.50.024103

Cited by 29 publications

(21 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…44 This approach, which results in increased sensor resolution, requires a careful design in order to avoid vertical colour-crossover arising from incomplete absorption. Their implementation into top-surface photodetection or back-surface-illuminated architectures demands for the use of transparent thin-film-transistors 105 that take advantage of the 100% fill-factor.…”

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

confidence: 99%

See 1 more Smart Citation

Solution-processed semiconductors for next-generation photodetectors

et al. 2017

View full text Add to dashboard Cite

show abstract

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

confidence: 99%

“…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

View full text Add to dashboard Cite

show abstract

“…[ 260 ] The stacked image sensor consisted of the following OPDs: bluesensitive [coumarin 30 ( N40 ):C 60 ( N19 )], green-sensitive [DMQA ( N15 )/Py-PTC ( N38 )] and red-sensitive [ZnPc ( N35 )/ TiOPc ( N28 )] pixels. Despite variable EQEs for each of the OPDs (7.6% at −10 V, 7.0% at −3 V and 18% at −15 V, respectively), and relatively large pixels, the image sensor was able to produce a color image at 10 frames per second (fps), with a resolution corresponding to the pixel number.…”

Section: Reviewmentioning

confidence: 99%

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

et al. 2016

View full text Add to dashboard Cite

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.

show abstract

“…Small-molecule semiconductors with narrowband absorption properties have played a key role in the development of organic narrowband photodetectors (see section 5.1). A significant number of them are drawn or derived from compounds originally developed as industrial colourants, laser dyes, or fluorescent probese.g., blue-absorbing coumarins [22,[44][45][46][47], green-absorbing rhodamines [44,45,[48][49][50][51] and quinacridones [11,47,[52][53][54][55][56][57][58][59][60][61][62][63], green-and red-absorbing phthalocyanine metal/metalloid complexes and derivatives [11, 44, 45, 47, 49, 54-56, 58, 61, 64-70], and green-, red-, and NIR-absorbing squaraines [23,[71][72][73] ( figure 4(b)). It is noteworthy that some narrowband-absorbing small molecules are able to form aggregates (Jand H-aggregates) featuring particularly narrow and intense absorption bands (FWHM α <20 nm, α up to 10 6 cm −1 ), a property that is very attractive for narrowband photodetection [24,[74][75][76][77][78][79].…”

Section: Organic Semiconductorsmentioning

confidence: 99%

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Pecunia

2019

J. Phys. Mater.

View full text Add to dashboard Cite

The capability of detecting visible and near infrared light within a narrow wavelength range is in high demand for numerous emerging application areas, including wearable electronics, the Internet of Things, computer vision, artificial vision and biosensing. Organic and perovskite semiconductors possess a set of properties that make them particularly suitable for narrowband photodetection. This has led to rising interest in their use towards such functionality, and has driven remarkable progress in recent years. Through a comparative analysis across an extensive body of literature, this review provides an up-to-date assessment of this rapidly growing research area. The transversal approach adopted here focuses on the identification of: (a) the unifying aspects underlying organic and perovskite narrowband photodetection in the visible and in the near infrared range; and (b) the trends relevant to photoconversion efficiency and spectral width in relation to material, device and processing strategies. A cross-sectional view of organic and perovskite narrowband photodetection is thus delineated, giving fresh insight into the status and prospects of this research area.

show abstract

A 128×96 Pixel Stack-Type Color Image Sensor: Stack of Individual Blue-, Green-, and Red-Sensitive Organic Photoconductive Films Integrated with a ZnO Thin Film Transistor Readout Circuit

Cited by 29 publications

References 20 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

Efficiency and spectral performance of narrowband organic and perovskite photodetectors: a cross-sectional review

Contact Info

Product

Resources

About