Flexible lead sulfide colloidal quantum dot photodetector using pencil graphite electrodes on paper substrates

He, Jungang; Luo, Miao; Hu, Long; Zhou, Yongli; Jiang, Shenglin; Song, Haisheng; Rui, Yong; Chen, Jie; Gao, Liang; Tang, Jiang

doi:10.1016/j.jallcom.2014.01.194

Cited by 61 publications

(46 citation statements)

References 39 publications

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“…0D nanostructures are good candidates for flexible photodetectors for their tunable optical/optoelectrical properties, excellent mechanical flexibility and good stability. Examples of 0D nanostructures that have been explored in the field of flexible photodetectors include HgSe NC, CuInSe 2 NCs, CdTe NCs, ZnO NCs, SnO 2 NCs, PbS QDs, PbSe QDs, and CdSe QDs, etc. Min et al demonstrated that In 2 Se 3 NCs synthesized in an aqueous solution without using any surfactant can be chemically transformed into CuInSe 2 NCs with a high production yield in mild reaction conditions .…”

Section: D Nanostructures‐based Flexible Photodetectorsmentioning

confidence: 99%

Flexible Photodetectors Based on Novel Functional Materials

Xie

Yan

2017

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Flexible photodetectors have attracted a great deal of research interest in recent years due to their great possibilities for application in a variety of emerging areas such as flexible, stretchable, implantable, portable, wearable and printed electronics and optoelectronics. Novel functional materials, including materials with zero-dimensional (0D) and one-dimensional (1D) inorganic nanostructures, two-dimensional (2D) layered materials, organic semiconductors and perovskite materials, exhibit appealing electrical and optoelectrical properties, as well as outstanding mechanical flexibility, and have been widely studied as building blocks in cost-effective flexible photodetection. Here, we comprehensively review the outstanding performance of flexible photodetectors made from these novel functional materials reported in recent years. The photoresponse characteristics and flexibility of the devices will be discussed systematically. Summaries and challenges are provided to guide future directions of this vital research field.

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Section: D Nanostructures‐based Flexible Photodetectorsmentioning

confidence: 99%

Flexible Photodetectors Based on Novel Functional Materials

Xie

Yan

2017

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“…Xu et al [9] have studied physical properties of PbS thin films that prepared at different reaction temperatures. Physical properties of lead sulfide colloidal quantum dot photodetector have been investigated by He et al [10]. New effects can appear in the film states that are not observed in the bulk samples.…”

Section: Introductionmentioning

confidence: 99%

Effect of annealing temperature on optical and electrical properties of lead sulfide thin films

Motlagh

Araghi

2015

Materials Science in Semiconductor Processing

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“…However, the introduction of ligands is inevitable in the preparation of QDs; therefore, how to deal with those ligands is a question worth studying. He et al fabricated PbS QDs PDs using paper as substrate and the electrodes were drawn using graphite pencil (see Figure a,b) . In their research, three different organic ligands were used to study the effects of ligands on the device performance.…”

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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Flexible lead sulfide colloidal quantum dot photodetector using pencil graphite electrodes on paper substrates

Cited by 61 publications

References 39 publications

Flexible Photodetectors Based on Novel Functional Materials

Flexible Photodetectors Based on Novel Functional Materials

Effect of annealing temperature on optical and electrical properties of lead sulfide thin films

Strategies toward High‐Performance Solution‐Processed Lateral Photodetectors

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