Challenges and recent advances in photodiodes-based organic photodetectors

Liu, Junwei; Gao, Mengyuan; Kim, Juhee; Zhou, Zhi‐Hua; Chung, Dae Sung; Yin, Hang; Ye, Long

doi:10.1016/j.mattod.2021.08.004

Cited by 120 publications

(144 citation statements)

References 146 publications

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“…Linear Dynamic Range Linear dynamic range (LDR) presents the operational range of intensity of the incident light, which forms a linear relationship with the photoresponse in PDs. LDR is calculated by LDR ¼ 20 Â log P max P min (10) where P max and P min are the maximum and minimum limits of the light intensity range where the photocurrent of PDs follows a linear dependence on the light intensity. [26,32]…”

Section: Specific Detectivitymentioning

confidence: 99%

“…Great efforts have been made in material synthesis, morphologic control, and device engineering to improve the performance of OPDs, leading to impressive improvements in the performance of the solution-processable OPDs. [10,11] Fabrication of the conventional inorganic semiconductorbased PDs requires the high manufacturing cost and stringent conditions, e.g., a high processing temperature, a high vacuum environment, a complex epitaxial growth, and a sophisticated lithography procedure. OPDs can be fabricated via various methods, including vacuum deposition, spin coating, and solutionbased printing fabrication processes.…”

Section: Introductionmentioning

confidence: 99%

“…[13] The summaries on the properties of organic semiconductor materials, [13][14][15] efficiency, and device physics of OPDs [16,17] were reported by different groups. The developments of photodiodes, [10,18] phototransistors, [19] and photomultiplication (PM)-type OPDs [20,21] First, the fundamentals and the critical figures of merit of OPDs are introduced. Following that, the recent advances of OPDs are addressed: 1) improving the performance of OPDs via suppressing noise current; 2) achieving filter-free spectral selectivity in OPDs, which is particularly important in future flexible and curved devices; and 3) developing flexible OPDs with flexible electrodes and substrates.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Solution‐Processable Organic Photodetectors and Applications in Flexible Electronics

Lan

Lee

Zhu

2021

Advanced Intelligent Systems

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Organic photodetectors (OPDs) are promising for applications in flexible electronics due to their advantages of excellent photodetection performance, cost-effective solution-fabrication capability, flexible device design, and adaptivity to manufacturability. This review outlines the recent advances in the development of high-performance OPDs and their applications in flexible electronics. The approaches to developing different noise reduction methods, filter-free spectral selective detection, flexible OPDs, and scale-up production of flexible OPDs through solution-fabrication processes are discussed. Applications of the OPD technology ultimately result in the materialization of wearable units, flexible and compact information sensors at commercially viable costs, including wearable health self-monitoring devices, flexible optical communication systems, and flexible large-area image sensors.

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Section: Specific Detectivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Recent Advances in Solution‐Processable Organic Photodetectors and Applications in Flexible Electronics

Lan

Lee

Zhu

2021

Advanced Intelligent Systems

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“…A key criterion for the applications 80 of organic conjugated materials is their ability to mix with other substances. The interplay between the three χ parameters, that is, χ (polymer donor:solvent), χ (polymer acceptor:solvent), and χ (polymer donor:polymer acceptor), can induce different polymer donor‐polymer acceptor affinities in blend solution before film deposition, which can subsequently affect the final solid‐state morphology of thin‐films.…”

Section: All‐pscs Fabricated From Eco‐friendly Solventsmentioning

confidence: 99%

Eco‐friendly solution processing of all‐polymer solar cells: Recent advances and future perspective

Xiong

Zhang

2021

Journal of Polymer Science

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All-polymer solar cells (all-PSCs) exhibit great potentials in commercial applications. All-PSCs have observed steady performance gains with power conversion efficiency now reaching over 17% in the open literature. However, the current processing of all-PSCs relies predominantly on toxic, chlorinated solvents in moisture-free environments, representing a significant barrier for their commercialization due to the added costs to handle and dispose of such solvents. There is thus an urgent need for safe, environmentally benign, and sustainable ink-based processing methods to produce all-PSC devices reliably and reproducibly in ambient air. In this perspective, fundamental insights on the interplay between all-polymer blend morphologies and eco-friendly solvents are provided. Also, we discuss the recent successes of the green processing methods to manipulate the photoactive morphologies for high-efficiency all-PSCs. In the end, we provide an outlook on future challenges and opportunities of eco-friendly solvents processed all-PSCs for large-scale manufacturing.

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Near Infrared Self‐Powered Organic Photodetectors with a Record Responsivity Enabled by Low Trap Density

Liu

Jia

Song

et al. 2023

Adv Funct Materials

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High‐performance IR organic photodetectors (OPDs) are of great significance for wireless optical communication, light detection and ranging (LiDAR) technology, and wearable electronics. However, high dark current and low responsivity (R) hinder their future commercial application. Herein, fullerene and non‐fullerene acceptors‐based OPDs are fabricated to understand the relationship between the trap density and photo‐responsivity. Impressively, the non‐fullerene system (Poly([2,6′‐4,8‐di(5‐ethylhexylthienyl)benzo[1,2‐b;3,3‐b]dithiophene]{3‐fluoro‐2[(2‐ethylhexyl)carbonyl]thieno[3,4‐b]thiophenediyl}) (PCE10):BTPV‐4F‐eC9) based OPDs exhibits a record R‐value of 0.56 A W−1 at 900 nm in no gain photodiode‐type OPDs, which results in a high detectivity over 1013 Jones in 400–1030 nm at room temperature. Mechanistic studies show that the low trap density plays critical role in reducing the trap‐assisted recombination and density of thermally generated carriers, thus improving the responsivity and reducing the dark current of the device. These findings provide new insights into the mechanism of high‐performance self‐powered near‐infrared OPDs.

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Challenges and recent advances in photodiodes-based organic photodetectors

Cited by 120 publications

References 146 publications

Recent Advances in Solution‐Processable Organic Photodetectors and Applications in Flexible Electronics

Recent Advances in Solution‐Processable Organic Photodetectors and Applications in Flexible Electronics

Eco‐friendly solution processing of all‐polymer solar cells: Recent advances and future perspective

Near Infrared Self‐Powered Organic Photodetectors with a Record Responsivity Enabled by Low Trap Density

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