Bi-layered metal-oxide thin films processed at low-temperature for the encapsulation of highly stable organic photo-diode

Satoh, Ryu−ichi; Ro, Takkyun; Heo, Chul‐Joon; Lee, Gae Hwang; Xianyu, Wenxu; Park, Yongyoung; Park, Jongbong; Lim, Seon-Jeong; Leem, Dong‐Seok; Bulliard, Xavier; Kim, Yeon-Hee; Bae, Kideok; Yang, Woo-Yong; Park, Kyung-Bae; Jin, Yong; Lee, Sang Yoon

doi:10.1016/j.orgel.2016.11.013

Cited by 11 publications

(6 citation statements)

References 23 publications

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“…The reasons for this are manifold: (a) the ease and attractiveness of the NBA approach to achieve narrowband photodetection (section 5.1); (b) the later development of CCN and microcavity approaches; (c) the limited edge of the input-filtered strategy (in view of its overlap with conventional narrowband photodetection, with which it shares similar challenges). In primary photocurrent mode, the NBA strategy has led to the highest EQE figures of all narrowband approaches (up to 60%-80%), as exemplified by figure 6(a) [46,57,58,61,70,95,128,129]. This can be rationalised in terms of its straightforward operation, which does not require filtering and/or the introduction of deliberate loss mechanisms.…”

Section: Impact Of Narrowband Strategiesmentioning

confidence: 86%

“…Chloroboron subphthalocyanine (SubPc) is another small molecule that has delivered high phototransduction efficiency in a number of works, giving an EQE p of 62.6% in combination with DCV3T [58], and 60.1% in combination with quinacridone [58,61] (figure 7(b)). Newly synthesised small-molecule donors featuring a D-A structure approaching the cyanine limit have also yielded EQE values in the ≈50%-70% range in combination with fullerenes ( figure 7(b)) [120,126,128,129]. Finally, Li et al demonstrated the potential of a singlecomponent squaraine photoactive layer, achieving an EQE p as high as 66% [72].…”

Section: Green-selective Photodetectors (500-600 Nm)mentioning

confidence: 99%

“…A considerable number of NBA-type devices feature a FWHM EQE greater than 100 nm. A recurrent feature of many of them is the use of fullerenes, which generally broaden the spectral width and/or reduce the spectral rejection ratio (e.g., with respect to the blue, see figure 7(b)) [120,125,126,128,129]. A number of fullerene-free strategies have thus been considered to overcome this challenge and achieve FWHM EQE values around or below 100 nm.…”

Section: Green-selective Photodetectors (500-600 Nm)mentioning

confidence: 99%

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

Pecunia

2019

J. Phys. Mater.

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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.

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Section: Impact Of Narrowband Strategiesmentioning

confidence: 86%

Section: Green-selective Photodetectors (500-600 Nm)mentioning

confidence: 99%

Section: Green-selective Photodetectors (500-600 Nm)mentioning

confidence: 99%

See 1 more Smart Citation

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

Pecunia

2019

J. Phys. Mater.

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“…On the other hand, SiN x O y film deposited at a higher temperature has higher performance, and its defects are less, however, the high-temperature treatment should be avoided in some devices, and the deposited SiN x O y film has poor barrier performance under low temperature, which is not conducive to the protection of the device. Therefore, Satoh et al [123] developed a AlO x /SiON composite bilayer structure deposited at a relatively low temperature (<160 °C), in which the AlO x layer is used as a barrier layer, and the SiN x O y layer ensured the chemical and thermal stability of the film to protect the device from damage during processing. The test results indicated that the device did not show any degradation at 85 °C, and 85% relative humidity (RH) is obtained.…”

Section: Applications Of Sinxoy Filmmentioning

confidence: 99%

A Review: Preparation, Performance, and Applications of Silicon Oxynitride Film

Shi

Guang

et al. 2019

Micromachines

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Silicon oxynitride (SiNxOy) is a highly promising functional material for its luminescence performance and tunable refractive index, which has wide applications in optical devices, non-volatile memory, barrier layer, and scratch-resistant coatings. This review presents recent developments, and discusses the preparation methods, performance, and applications of SiNxOy film. In particular, the preparation of SiNxOy film by chemical vapor deposition, physical vapor deposition, and oxynitridation is elaborated in details.

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“…In this paper, we used the green image sensor which has been applied in the organic-on-Si hybrid CIS developed in Samsung advanced institute of technology (SAIT) 2 . In the organic-on-Si CIS, the effective light detection area per pixel is doubled by stacking a G-light selective organic photodetector (OPD) on a Si-based CMOS circuit containing B and R color filters 2,3 .…”

Section: Introductionmentioning

confidence: 99%

The role of defects in organic image sensors for green photodiode

Kim

Lee

Cho

et al. 2019

Sci Rep

Self Cite

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Controlling defect states in a buffer layer for organic photo devices is one of the vital factors which have great influence on the device performance. Defect states in silicon oxynitride (SiOxNy) buffer layer for organic photo devices can be controlled by introducing appropriate dopant materials. We performed ab initio simulations to identify the effect on doping SiOxNy with carbon (C), boron (B), and phosphorous (P) atoms. The results unveil that hole defects in the SiOxNy layer diminish with the phosphorous doping. Based on the simulation results, we fabricate the small molecule organic photodetector (OPD) including the phosphorous-doped SiOxNy buffer layer and the active film of blended naphthalene-based donor and C60 acceptor molecules, which shows excellent enhancement in the external quantum efficiency (EQE). The results of our charge-based deep level transient spectroscopy (Q-DLTS) measurements confirmed that the EQE enhancement originates from the decrease of the hole traps induced by the reduced hole defects. The method of controlling the defect states in SiOxNy buffer layers by the doping can be used to improve the performance in various organic photo devices.

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Bi-layered metal-oxide thin films processed at low-temperature for the encapsulation of highly stable organic photo-diode

Cited by 11 publications

References 23 publications

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

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

A Review: Preparation, Performance, and Applications of Silicon Oxynitride Film

The role of defects in organic image sensors for green photodiode

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