Nanochannel-Assisted Perovskite Nanowires: From Growth Mechanisms to Photodetector Applications

Zhou, Qitao; Park, June; Nie, Riming; Thokchom, Ashish Kumar; Ha, Dogyeong; Pan, Jing; Seok, Sang Il; Kim, Tae Sung

doi:10.1021/acsnano.8b03826

Cited by 57 publications

(56 citation statements)

References 40 publications

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“…E, Time‐dependent photoresponse of the flexible photodetector based on MAPbI 3 nanowires under different bending conditions at ‐5 V voltage. Reproduced with permission . Copyright 2018, American Chemical Society.…”

Section: Metal Halide Perovskitementioning

confidence: 99%

Recent developments in flexible photodetectors based on metal halide perovskite

Hao

Zou

Huang

2019

InfoMat

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Flexible photodetectors (FPDs) have been receiving increasing attention in recent years because of their potential applications in electronic eyes, bioinspired sensing, smart textiles, and wearable devices. Moreover, metal halide perovskites (MHPs) with outstanding optical and electrical properties, good mechanical flexibility, lowcost and low-temperature solution-processed fabrication have become promising candidates as light harvesting materials in FPDs. Herein, we comprehensively review the developments of FPDs based on MHPs reported recently. This review firstly provides an introduction with respect to the performance parameters and device configurations of perovskite photodetectors, followed by the specific requirements of FPDs including substrate and electrode materials. Next, chemical compositions, structures and preparation methods of MHPs are presented. Then, the FPDs on the basis of single-component perovskite and hybrid structure perovskite are discussed, subsequently, self-powered flexible perovskite photodetectors were presented. In the end, conclusions and challenges are put forward in the field of FPDs based on perovskites. K E Y W O R D S metal halide perovskites, flexible photodetectors, self-powered

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Section: Metal Halide Perovskitementioning

confidence: 99%

Recent developments in flexible photodetectors based on metal halide perovskite

Hao

Zou

Huang

2019

InfoMat

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“…The disadvantage of the continuous flow synthesis is the limited control of the number or length of structures and their rupture when exposed to shear forces. Solutions for creating (perovskite) nanowires with improved growth control were recently reported by Mao et al by using nanostructured molds and Zhou et al by implementing nanochannels in a microfluidic device …”

Section: Introductionmentioning

confidence: 99%

Formation of Single Micro‐ and Nanowires with Extreme Aspect Ratios in Microfluidic Channels

Lenz

Sebastian

Dittrich

2019

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Shown here is the site‐specific formation of single extraordinarily long metal–organic micro‐ and nanowires using a microfluidic device made of poly(dimethylsiloxane) (PDMS). This approach exploits two concepts, i) the diffusion of organic precursor molecules through PDMS and ii) the use of microfluidic channels as a growth template. To initiate wire formation, metal and organic precursor solutions are filled into different supply channels that are separated by PDMS. As the precursor diffuses through PDMS, and thereby infiltrates the adjacent channel, the growth of micro‐ and nanowires starts at the side walls of this adjacent channel. The formation yields single wires with sizes ranging from several hundreds of micrometers to millimeters at diameters of 0.5–2 µm. The principles of this formation pathway are demonstrated with the reaction of tetrathiafulvalene (TTF) and gold(III) ions that yields Au‐TTF wires. The influence of various reaction parameters including the choice of solvents and the chip fabrication protocol on the reaction are evaluated. Based on these findings, a further microfluidic device design with orthogonally arranged channels is developed, and the formation of single wires in a channel‐defined pattern is demonstrated. Moreover, the possibility of pulsed precursor supply allows for advanced control over the growth of the wires.

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“…Especially, nanowires, 1D nanostructures with controlled diameters and lengths, are the basic building blocks for creating miniaturized devices. Techniques to fabricate perovskite nanowires mainly rely on i) vapor‐phase deposition or ii) solution‐mediated crystallization . The former offers an excellent crystal quality but lacks the ability to precisely position individual nanowires.…”

mentioning

confidence: 99%

“…The former offers an excellent crystal quality but lacks the ability to precisely position individual nanowires. In the latter that is based on supersaturation of solutes, there have been several remarkable attempts to fabricate and align individual nanowires by confinement of solution inside templates, nanoimprint molds, or nanofluidic channels under evaporation of solvent.…”

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confidence: 99%

3D Nanoprinting of Perovskites

et al. 2019

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Organic-inorganic metal halide perovskites, particularly CH 3 NH 3 PbX 3 (X = Cl, Br, and I), have recently emerged as a promising optoelectronic material [1] because of their excellent properties such as large optical absorption, long carrier diffusion length, high carrier mobility, and low-cost solution production process. [2][3][4][5][6] Over the past decade, there have been conducted substantial research to utilize perovskites for diverse applications as solar cells, [2,7,8] photodetectors, [9,10] light emitting diodes, [11,12] and lasers. [13,14] Most of the research has focused on the control over crystallinity or chemical composition in a thin film form, in result, making great advances in material performance. [15][16][17][18][19] Continuous demands on optoelectronic devices with high integration density and new functions have raised the need for nanostructured perovskites. [20] Especially, nanowires, 1D nanostructures with controlled diameters and lengths, are the basic building blocks for creating miniaturized devices. Techniques to fabricate perovskite nanowires mainly rely on i) vapor-phase deposition [21,22] or ii) solution-mediated crystallization. [14,[23][24][25][26] The former offers an excellent crystal quality but lacks the ability to precisely position individual nanowires. In the latter that is based on supersaturation of solutes, there have been several remarkable attempts to fabricate and align individual nanowires by confinement of solution inside templates, [23,24] nanoimprint molds, [25] or nanofluidic channels [26] under evaporation of solvent.Recently, some clever methods based on inkjet printing have been devised for patterning perovskite micro/nanostructures. [27,28] These attempts have enhanced the freedom of nanostructures design beyond straight nanowires, potentially enabling a high-level integration of perovskite circuitries and devices. However, the developed patterning techniques for perovskites are still limited to in-plane fabrication and alignment.Since its invention in the 1980s, 3D printing, known as additive manufacturing, has attracted great attention as a facile method to produce tangible freeform structures. Beyond simple prototyping, there have recently been enormous efforts to improve or diversify the properties of 3D printed objects-for their practical use-by engineering materials' crystallinity [29,30] or molecular orientation. [31][32][33] In this context, owing to their As competing with the established silicon technology, organic-inorganic metal halide perovskites are continually gaining ground in optoelectronics due to their excellent material properties and low-cost production. The ability to have control over their shape, as well as composition and crystallinity, is indispensable for practical materialization. Many sophisticated nanofabrication methods have been devised to shape perovskites; however, they are still limited to in-plane, low-aspect-ratio, and simple forms. This is in stark contrast with the demands of modern optoelectronics with freeform circui...

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Nanochannel-Assisted Perovskite Nanowires: From Growth Mechanisms to Photodetector Applications

Cited by 57 publications

References 40 publications

Recent developments in flexible photodetectors based on metal halide perovskite

Recent developments in flexible photodetectors based on metal halide perovskite

Formation of Single Micro‐ and Nanowires with Extreme Aspect Ratios in Microfluidic Channels

3D Nanoprinting of Perovskites

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