Efficient and Stable Perovskite Photodetectors Based on Thiocyanate-Assisted Film Formation

Chen, Yantao; Zhou, Jiachen; Zhou, Bilei; Huang, Jia

doi:10.1021/acsami.9b01715

Cited by 16 publications

(11 citation statements)

References 30 publications

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“…Furthermore, inorganic perovskite QDs may be produced using low-cost solution processing, allowing for the development of stretchable and flexible integrated transistors, which is a benefit compared to crystalline Si and group III-V semiconductors [13]. In addition, most research on inorganic perovskite QDs has focused on LEDs, solar cells, and photodetectors, while QD electronics are still in their infancy [149][150][151]. Hence, there remains lots of room for perovskite QDs to develop into next-generation transistor materials.…”

Section: Inorganic Perovskite Qds Based and Qds-containing Transistorsmentioning

confidence: 99%

Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications

Huang

et al. 2022

Nano-Micro Lett.

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Metal halide perovskites have generated significant attention in recent years because of their extraordinary physical properties and photovoltaic performance. Among these, inorganic perovskite quantum dots (QDs) stand out for their prominent merits, such as quantum confinement effects, high photoluminescence quantum yield, and defect-tolerant structures. Additionally, ligand engineering and an all-inorganic composition lead to a robust platform for ambient-stable QD devices. This review presents the state-of-the-art research progress on inorganic perovskite QDs, emphasizing their electronic applications. In detail, the physical properties of inorganic perovskite QDs will be introduced first, followed by a discussion of synthesis methods and growth control. Afterwards, the emerging applications of inorganic perovskite QDs in electronics, including transistors and memories, will be presented. Finally, this review will provide an outlook on potential strategies for advancing inorganic perovskite QD technologies.

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Section: Inorganic Perovskite Qds Based and Qds-containing Transistorsmentioning

confidence: 99%

Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications

Huang

et al. 2022

Nano-Micro Lett.

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“…[109][110][111][112][113] Chu et al reported the photodetectors based on pseudo-halide perovskite films and compared their stability with conventional CH 3 NH 3 PbI 3 -based devices. [114] The stability of photodetectors was investigated under ambient conditions (20 °C, relative humidity >50%). The photocurrent of CH 3 NH 3 PbI 3 -based photodetectors decreased to 10% of its initial value after 10 days.…”

Section: Photodetectormentioning

confidence: 99%

“…[127] It was found that addition of SCN − resulted in Reproduced with permission. [114] Copyright 2019, American Chemical Society. Responses of pseudo-halide perovskite based gas sensors upon exposure to b) acetone vapor and c) NO 2 gas, respectively.…”

Section: Light Emission From Pseudo-halide Perovskitesmentioning

confidence: 99%

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Pseudo‐Halide Perovskite Solar Cells

Lin

Loganathan

Raifuku

et al. 2021

Advanced Energy Materials

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class of solar absorber material. These halide perovskite materials have been known since 1970s, and their optical and electrical properties had been investigated by several groups. [1][2][3][4][5][6] Toward their application in solar cells, Kojima et al. first employed CH 3 NH 3 PbI 3 and CH 3 NH 3 PbBr 3 as the light absorber using dye-sensitized solar cell configuration. [7] M. Grätzel and co-workers reported the first all-solid-state perovskite-based mesoscopic solar cells. [8] These class of perovskites material offers unique opto-electronic traits namely ambipolar charge transport, high absorption coefficient, and long electron/hole diffusion length, making them highly desired for PV application. Moreover, the ease of synthesis and low temperature crystallization makes them a good choice for low cost PV devices with high efficiencies. Being aware of these aforementioned remarkable optoelectronic properties and solution processability of halide perovskites, perovskite solar cells (PSCs) have attracted immense research attention worldwide. [9][10][11][12][13][14] They demonstrate a certified PCE of 25.5%, which is higher than that of organic solar cells and most of inorganic solar cells such as multi-crystalline silicon and copper indium gallium diselenide based solar cells. [15] In addition to their application in solar cells, owing to their intrinsic properties the halide perovskites have been employed in a wide range of optoelectronic devices, such as light-emitting diode (LED), lasers, photodetectors, and Perovskite solar cells (PSCs) have achieved certified power conversion efficiency (PCE) over 25%. Though their high PCE can be achieved by optimizing absorber layer and device interfaces, the intrinsic instability of perovskite materials is still a key issue to be resolved. Mixed-halide perovskites using multiple halogen constituents have been proved to improve robustness; however, the anion at the X site in the ABX 3 formula is not limited to halogens. Other negative monovalent ions with similar properties to halogens, such as pseudo-halogens, have the opportunity to form perovskites with ABX 3 stoichiometry. Recently, thiocyanates and formates have been utilized to synthesize stable perovskite materials. This review presents the evolution of pseudo-halide perovskite solar cells in the past few years. The intrinsic properties, their effects on crystal structure, and bandgap engineering of the pseudo-halide perovskites are summarized. Various thiocyanate compounds applied in the fabrication of perovskite solar cells are discussed. The fabrication process, film formation mechanism, and crystallinity of pseudo-halide perovskites are elucidated to understand their effects on the photovoltaic performance and device stability. Other applications of pseudo-halide perovskites are summarized in the final section. Lastly, this review concludes with suggestions and outlooks for further research directions.

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“…have been extensively studied for the application in FPDs . Especially, metal halide perovskites (MHPs) exhibit outstanding performances including remarkable optical and electrical properties, low‐cost, low‐temperature solution‐processed fabrication, and compatibility with flexible substrates . Thus, they have become promising light‐harvesting materials for high performance FPDs and have been utilized to fabricate FPDs with different structures including vertical (photodiodes and photoconductors) or lateral (photoconductors and phototransistors) devices.…”

Section: Introductionmentioning

confidence: 99%

Recent developments in flexible photodetectors based on metal halide perovskite

Hao

Zou

Huang

2019

InfoMat

Self Cite

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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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Efficient and Stable Perovskite Photodetectors Based on Thiocyanate-Assisted Film Formation

Cited by 16 publications

References 30 publications

Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications

Inorganic Halide Perovskite Quantum Dots: A Versatile Nanomaterial Platform for Electronic Applications

Pseudo‐Halide Perovskite Solar Cells

Recent developments in flexible photodetectors based on metal halide perovskite

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