High-performance n-type organic thin-film phototransistors based on a core-expanded naphthalene diimide

Qi, Zhihua; Liao, Xian; Zheng, Jin‐Cheng; Di, Chong‐an; Gao, Xike; Wang, Jizheng

doi:10.1063/1.4817267

Cited by 27 publications

(21 citation statements)

References 28 publications

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“…As can be seen from Figure c, the device displays reproducible photosensing behavior. In every photoresponse cycle, the persistent photoconductivity (PPC) was observed . The PPC phenomenon signifies that the I DS declines very slowly and maintains a high current value for a long time even after the light is off.…”

Section: Resultsmentioning

confidence: 99%

“…Under illumination, the photogenerated holes transport to the drain electrode quickly, but the photogenerated electrons will fill in the electron traps of the p‐type material resulting in prolonged lifetime of photogenerated electrons. To keep the neutrality of the semiconductor, each hole reaching the drain is replenished by another entering from the source . This is the gain mechanism due to the increased lifetime of photogenerated electrons.…”

Section: Resultsmentioning

confidence: 99%

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High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection

Cao

et al. 2015

Adv Funct Materials

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection

Cao

et al. 2015

Adv Funct Materials

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“…3d–f ). NDI-based materials have been introduced as photoactive materials in phototransistors 39 . However, to the best of our knowledge, there is rare report on photoresponsivity using NDI-based SBCPs.…”

Section: Resultsmentioning

confidence: 99%

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

et al. 2018

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Chiral supramolecules have great potential for use in chiral recognition, sensing, and catalysis. Particularly, chiral supramolecular biocoordination polymers (SBCPs) provide a versatile platform for characterizing biorelated processes such as chirality transcription. Here, we selectively synthesize homochiral and heterochiral SBCPs, composed of chiral naphthalene diimide ligands and Zn ions, from enantiomeric and mixed R-ligands and S-ligands, respectively. Notably, we find that the chiral self-sorted SBCPs exhibit multifunctional properties, including photochromic, photoluminescent, photoconductive, and chemiresistive characteristics, thus can be used for various sensors. Specifically, these materials can be used for detecting hazardous amine materials due to the electron transfer from the amine to the SBCP surface and for enantioselectively sensing a chiral species naproxen due to the different binding energies with regard to their chirality. These results provide guidelines for the synthesis of chiral SBCPs and demonstrate their versatility and feasibility for use in various sensors covering photoactive, chemiresistive, and chiral sensors.

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“…Besides these systems related to P3HT:PCBM, there are also some other n/p‐type materials being studied. Qi et al fabricated phototransistors by using an n‐type small molecule: a core‐expanded naphthalene diimide named NDI(2OD)(4tBuPh)‐DTYM2, and the highest R of the device reached 27 000 A W −1 . Zhang et al investigated the photoresponse of another kind of fullerene derivative, PCBDR, which has a disperse‐red dyad with absorption peak of 480 nm (see Figure a,b) .…”

Section: Performance Improvement Strategiesmentioning

confidence: 99%

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

Lin

Wang

2019

Advanced Materials

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Since the device performance mainly depends on the active materials and device architectures, they are the subject of extensive work, and there have been many achievements. Dispersible inorganic materials vastly simplify the preparation of films while maintaining good electrical conductivity; [1][2][3][4][5] organic small-molecule materials and polymer materials have wide wavelength response, especially in visible region, and can be adjusted easily by changing the functional groups; [6][7][8][9][10] organic-inorganic hybrid material systems are also a promising development direction, combining good electrical and optical properties; [11][12][13][14][15] in addition, the perovskite series of organic-inorganic hybrid materials has become a new research direction due to their excellent optoelectronic properties. [16][17][18][19][20] In addition, varieties of microstructures including nanoparticles, nanowires, nanosheets etc., have been widely investigated, and they have a wide range of applications in devices benefiting from their peculiar characteristics, like quantum size effect and anisotropy. [21][22][23][24][25] Besides working on active materials, constructing diverse device architectures is also a convenient and effective approach. [26][27][28][29][30] The fabrication of blend, bilayer, and multilayer architectures would be conducive to increasing responsivity, extending detection range, and accelerating response speed.Here, from active materials to device architectures, we systematically introduce and discuss the strategies for improving the device performance of solution-processed lateral PDs. To begin with, we briefly expound the working mechanism of the lateral PDs and clarify the key device figures-of-merit. Then, based on the active materials, we divide the devices into four categories: inorganic, organic, hybrid, and perovskite, and their corresponding improvement methods are summarized respectively. To close, we conduct a physical generalization and propose detailed suggestions for the further development of the field. Device Working PrincipleThe structures of lateral PDs are quite simple: an active layer between two parallel electrodes or using three electrodes (source, drain, and gate) for better control; and the detection of light mainly originates from the change of conductivity, which is caused by the increase of the carrier concentration under illumination.Due to their low cost and ease of integration, solution-processed lateral photodetectors (PDs) are becoming an important device type among the PD family. In recent years, enormous effort has been devoted to improving their performances, and great achievements have been made. A summary of the core progress, especially from the perspective of design principles and device physics, is necessary to further the development of the field, but is currently lacking. Here, to address this need, first, the working mechanism of PDs and the device figures-of-merit are introduced. Second, by classifying the active materials into four categories, including in...

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High-performance n-type organic thin-film phototransistors based on a core-expanded naphthalene diimide

Cited by 27 publications

References 28 publications

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

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High-performance n-type organic thin-film phototransistors based on a core-expanded naphthalene diimide

Cited by 27 publications

References 28 publications

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC61BM for Visible and Ultraviolet Photodetection

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC61BM for Visible and Ultraviolet Photodetection

Chiral self-sorted multifunctional supramolecular biocoordination polymers and their applications in sensors

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

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Product

Resources

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High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection

High‐Performance Thermally Stable Organic Phototransistors Based on PSeTPTI/PC₆₁BM for Visible and Ultraviolet Photodetection