Enhanced performance of PbPc photosensitive organic field effect transistors by inserting different-thickness pentacene inducing layers

Li, Yao; Lv, Wenli; Luo, Xiao; Sun, Lei; Zhao, Feiyu; Zhang, Jianping; Zhong, Junkang; Huang, Fobao; Peng, Yingquan

doi:10.1016/j.orgel.2015.07.042

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…And at V d = −50 V, a P max of 5.3 × 10 3 of Dev-B is achieved, which is 570 times greater than that of Dev-A, and an EQE of 20.29% is acquired and bigger than that of Dev-A (see Table 1). The far superior performance of Dev-B to Dev-A is mainly ascribed to the higher NIR absorption and carrier mobility of Dev-B than Dev-A (see Figure 2 and Table 1), and the higher NIR absorption and carrier mobility of Dev-B benefit from the increased triclinic phase content and crystallinity of the PbPc films owing to template inducing of the pentacene layer [31]. In Figure 4c,d, we illustrate the output and transfer characteristics of Dev-C with a structure of Si/SiO 2 /C 60 (30 nm)/PbPc (20 nm)/Au, which show that Dev-C has n-channel operation characteristics.…”

Section: Bilayer Planar Heterojunctionmentioning

confidence: 99%

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Air-Stable Near-Infrared Sensitive Organic Phototransistors Realized via Tri-Layer Planar Heterojunction

Hu,

Wang,

et al. 2023

Applied Sciences

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Near-infrared (NIR) light has many applications in agriculture, transportation, medicine, the military, and other fields. Lead phthalocyanine (PbPc) exhibits excellent near-infrared (NIR) light absorption characteristics and is widely used in NIR-sensitive organic photodetectors. In this work, PbPc-based NIR organic phototransistors (OPTs) with different active layer structures were designed and fabricated. The photo-absorption characteristics of organic films, photosensitive properties, and air stability of the devices were investigated. The results suggested that (i) the bilayer planar heterojunction (PHJ) devices exhibit far better photosensitive performance than the single layer ones due to higher mobility of the formers than the latters; (ii) the bilayer PHJ ones with p-type channel have equivalent photosensitive performance to those with n-type channel owing to equivalent mobility, higher NIR absorption and lower exciton dissociation efficiency of the formers than the latters; (iii) the bilayer PHJ ones with p-type channel possess superior air stability to those with n-type channel thanks to better air stability of pentacene channel layer than C60 channel layer; (iv) the tri-layer PHJ ones perform better than the bilayer PHJ ones with p-type channel and exhibit a high photoresponsivity of 1415 mA/W and a maximum photo-to-dark current ratio of 1.2 × 104, and such an outstanding performance benefits from the virtues of tri-layer PHJ structure including high light absorption, carrier mobility and exciton dissociation efficiency; and (v) the air stability of the tri-layer PHJ ones is better than that of the bilayer PHJ ones with p-type channel, which can be attributed to the passivation of the top-level C60 layer.

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Section: Bilayer Planar Heterojunctionmentioning

confidence: 99%

“…In summary, the overall performance of Dev-D, featuring a tri-layer PHJ structure, is better than that of Dev-A or Dev-B and surpasses that of the NIR OPTs reported in Refs. [26,27,31,38,39] (see Table 2). The air stability of Dev-D was measured and shown in Figure 5.…”

Section: Tri-layer Planar Heterojunctionmentioning

confidence: 99%

Air-Stable Near-Infrared Sensitive Organic Phototransistors Realized via Tri-Layer Planar Heterojunction

Hu,

Wang,

et al. 2023

Applied Sciences

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Thickness-Dependent Performance of Photosensitive Organic Field-Effect Transistors Based on Palladium Phthalocyanine

Zhou

et al. 2019

Lecture Notes in Electrical Engineering

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Realizing high-responsive superlattice organic photodiodes by C60 and zinc phthalocyanine

Ding

Zheng

et al. 2018

J Mater Sci

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Enhanced performance of PbPc photosensitive organic field effect transistors by inserting different-thickness pentacene inducing layers

Cited by 12 publications

References 32 publications

Air-Stable Near-Infrared Sensitive Organic Phototransistors Realized via Tri-Layer Planar Heterojunction

Air-Stable Near-Infrared Sensitive Organic Phototransistors Realized via Tri-Layer Planar Heterojunction

Thickness-Dependent Performance of Photosensitive Organic Field-Effect Transistors Based on Palladium Phthalocyanine

Realizing high-responsive superlattice organic photodiodes by C60 and zinc phthalocyanine

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