CsPbBr3/Reduced Graphene Oxide nanocomposites and their enhanced photoelectric detection application

Tang, Xiaosheng; Zu, Zhiqiang; Zang, Zhigang; Hu, Zhiping; Hu, Wei; Yao, Zhiqiang; Chen, Weiwei; Li, Shiqi; Han, Shuai; Zhou, Miao

doi:10.1016/j.snb.2017.01.168

Cited by 64 publications

(73 citation statements)

References 43 publications

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“…The narrow size distribution of the nanocrystals was indicated from the narrow PL full-width half maximum (FWHM). Furthermore, when the nanocrystals were anchored on GO, the peak was blue shifted for only 4 nm, but the intensity was decreased significantly (Figure 3d, red curve), which was also observed in similar nanoconjugates synthesized chemically [15,16,28]. Both solutions have strong and narrow absorption peaks at 311-315 nm and an absorption onset at 512 nm ( Figure S3).…”

Section: Resultssupporting

confidence: 64%

“…In recent years, the plethora of synthesis pathways for the fabrication of lead halide perovskite nanocrystals has given rise to their conjugation with 2D counterparts, in order to explore new synergetic phenomena [14][15][16][17][18][19]. The metal halide perovskite nanocrystals are a new class of nanomaterials; their properties can be modified by tuning the halide component [20], or by altering their dimensionality or morphology [21,22].…”

Section: Introductionmentioning

confidence: 99%

“…Different morphologies of metal halide perovskite nanocrystals, such as nanospheres [15], nanocubes [1,[16][17][18]27] or nanowires [14] have been grown on 2D materials and utilized for applications in light harvesting [14], for photocatalytic CO 2 reduction [15,17], for visible-light photocatalyst for H 2 evolution in aqueous HI solution [28] and in photoelectric detection [16]. The multiple applications of the perovskite-2D nanoconjugates lead the way to find easy, fast, solution-processable and controllable methods to fabricate such complex structures with attractive properties.…”

Section: Introductionmentioning

confidence: 99%

“…The multiple applications of the perovskite-2D nanoconjugates lead the way to find easy, fast, solution-processable and controllable methods to fabricate such complex structures with attractive properties. It is important to note here that the above nanoconjugates are synthesized by hot-injection or re-precipitation chemical methods at high [15,16] or mild [17] temperatures in which the 2D materials are presented during the perovskite nanocrystal synthesis. These syntheses need complex apparatus such as Schleck line and give uncontrollable density and non-uniform nanocrystals on the 2D-materials.…”

Section: Introductionmentioning

confidence: 99%

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Laser-Assisted Fabrication for Metal Halide Perovskite-2D Nanoconjugates: Control on the Nanocrystal Density and Morphology

et al. 2020

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We report on a facile and rapid photo-induced process to conjugate graphene-based materials with metal-halide perovskite nanocrystals. We show that a small number of laser pulses is sufficient to decorate the 2-dimensional (2D) flakes with metal-halide nanocrystals without affecting their primary morphology. At the same time, the density of anchored nanocrystals could be finely tuned by the number of irradiation pulses. This facile and rapid room temperature method provides unique opportunities for the design and development of perovskite-2D nanoconjugates, exhibiting synergetic functionality by combining nanocrystals of different morphologies and chemical phases with various 2D materials.

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Section: Resultssupporting

confidence: 64%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laser-Assisted Fabrication for Metal Halide Perovskite-2D Nanoconjugates: Control on the Nanocrystal Density and Morphology

et al. 2020

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“…Previously, it was reported that the specific surface functional groups including OH, O, and F of MXenes should interact with oleic acid and/or oleylamine through forming nucleation sites for PbBr 2 precursors, and hence guiding the subsequent crystallization of perovskites. [ 84,85 ] According to this growth mechanism, Liu and co‐workers in 2019 reported X‐ray photodetectors based on nanocomposites composed of CsPbBr 3 perovskites grown on Ti 3 C 2 T x MXenes. [ 86 ]…”

Section: Photodetectors Based On 2d Mxenesmentioning

confidence: 99%

Recent Advances in 2D MXenes for Photodetection

Ren

et al. 2020

Adv Funct Materials

147

110

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A new class of 2D transition metal carbides, carbonitrides and nitrides, termed MXenes, has emerged as a new candidate for many applications in electronics, optoelectronics, and energy storage. Since their first discovery in 2011, MXenes have gathered increasingly more interest owing to their unique physical, chemical, and mechanical properties that can be tuned by different surface terminations and transition metals. In particular, the intriguing optical and electrical properties, including transparency, saturable absorption, and high conductivity, grant MXenes various roles in photodetectors, such as transparent electrodes, Schottky contacts, photoabsorbers, and plasmonic materials. Given the solution‐processability, MXenes also hold great potential for large‐scale synthesis, and thus are favored for a number of electronic and photonic device applications. In this review, recent advances in photodetectors based on 2D MXenes are summarized. Despite the fact that such applications have only recently been explored compared with other 2D materials, MXenes have shown promise in low‐cost and high‐performance photodetection.

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Energy and Charge Dual Transfer Engineering for High‐Performance Green Perovskite Light‐Emitting Diodes

Baek

Kim

et al. 2022

Adv Funct Materials

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Perovskite light-emitting diodes (PeLEDs) have garnered considerable interest in recent years owing to their unique optoelectronic properties. However, the performance of PeLEDs is limited by their low quantum efficiency and unbalanced charge injection. In this study, to address these issues, a novel co-hole transport layer (HTL) of 4,4′-bis(N-carbazolyl)-1,1′-biphenyl (CBP) and poly(9-vinylcarbazole) (PVK) is introduced into PeLEDs. By optimizing the composition ratio of CBP and PVK, the performance of CsPbBr 3 -based PeLEDs is significantly improved via efficient Förster resonant energy transfer and an enhanced charge transfer owing to the well-aligned energy levels of the HTLs with the emission layers. The PeLED with an optimized composition ratio of the PVK 0.5 -CBP 0.5 HTL exhibits the best device performance with a luminance of 31641 cd•m −2 , current efficiency of 39.2 cd•A −1 , and external quantum efficiency of 15.4%. Thus, the proposed strategy engineering dual transfer of energy and charge is expected to be revolutionary in the field of PeLED research.

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CsPbBr3/Reduced Graphene Oxide nanocomposites and their enhanced photoelectric detection application

Cited by 64 publications

References 43 publications

Laser-Assisted Fabrication for Metal Halide Perovskite-2D Nanoconjugates: Control on the Nanocrystal Density and Morphology

Laser-Assisted Fabrication for Metal Halide Perovskite-2D Nanoconjugates: Control on the Nanocrystal Density and Morphology

Recent Advances in 2D MXenes for Photodetection

Energy and Charge Dual Transfer Engineering for High‐Performance Green Perovskite Light‐Emitting Diodes

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