Large-scale aligned crystalline CH3NH3PbI3 perovskite array films

Li, Yitan; Wang, Xiao; Wu, Shiting; Ci, Haina; Xu, Henglu; Li, Xuemei; Sun, Hao; Zhang, Zeyao; Cao, Anyuan; Guo, Xuefeng; Li, Yudong

doi:10.1039/c5ta04936a

Cited by 19 publications

(21 citation statements)

References 35 publications

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“…Additionally, only a few of them have demonstrated broad wavelength tunability. These shortages are possibly solved by the recently discovered perovskites, which are directly synthesized from solution at room temperature . The emission and absorption wavelengths of hybrid lead halide CH 3 NH 3 PbX 3 (MAPbX 3 , X = Cl, Br, I) can be widely tuned from blue light to near infrared by changing their stoichiometric composition in solution.…”

Section: Introductionmentioning

confidence: 99%

Solution‐Phase Synthesis of Cesium Lead Halide Perovskite Microrods for High‐Quality Microlasers and Photodetectors

Wang

et al. 2017

Advanced Optical Materials

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Recently, due to broad wavelength tunability and high material stability, cesium lead halide perovskite nanorods have been intensively studied as potential candidates for microlasers and photodetectors. However, the current CsPbX3 perovskite nanorods can only support low quality (Q) Fabry–Perot lasers and the response time of CsPbX3 nanorod photodetector is extremely long. Here, CsPbBr3 microrods with larger cross‐sectional sizes and almost uniform aspect ratio are successfully synthesized with a solution processed one‐step precipitation method and their applications in microlasers and photodetectors are reported. Due to the larger cross‐sectional size, whispering‐gallery‐mode lasers can be formed in the transverse plane of CsPbBr3 microrod under both of one‐photon and two‐photon excitation. The highest Q factor can reach around 7000. Besides, the synthesized CsPbBr3 perovskite lasers have shown much better photostability and thermal stability. The single‐crystalline CsPbBr3 microrods also provide a stable platform for photodetectors. The rise and decay time of CsPbBr3 microrod based photodetectors are around 8 ms, which are almost two orders of magnitude smaller than the previously reported CsPbX3 microrod photodetector. Such findings can pave new route on all‐inorganic CsPbX3 based optoelectronic devices.

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Section: Introductionmentioning

confidence: 99%

Solution‐Phase Synthesis of Cesium Lead Halide Perovskite Microrods for High‐Quality Microlasers and Photodetectors

Wang

et al. 2017

Advanced Optical Materials

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“…In a previous study, we reported the crystal structure match of the (010) plane of CH 3 NH 3 PbI 3 to the surface lattice of ST-cut quartz [35]. Both the lattice spacings of (001) and (101) planes of CH 3 NH 3 PbI 3 and the crystal face angle fit the structural periodicity of ST-cut quartz.…”

Section: Introductionmentioning

confidence: 73%

Epitaxial growth of horizontally aligned single-crystal arrays of perovskite

Chen

Han

et al. 2018

Sci. China Mater.

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“…Even without a precisely prepared substrate, an aligned NWA can still be formed. [74][75][76] For instance, Deng et al fabricated a highly crystalline compact microwire array by blade coating MAPbI 3 solution (Figure 3f ). [74] In this process, the speed of the blade and precursor concentration is found to have critical effects on the final NW, and with suitable parameters, the obtained NW was verified as single crystalline (Figure 3g).…”

Section: Oriented-force-induced Growthmentioning

confidence: 99%

“…[42] However, the use of these templates not only leads to increased cost but also makes it difficult to scale up. Therefore, many other preparation methods, including blade coating, [115] slip coating, [75] and roll-to-roll microgravure printing, [79] have been studied to address this dilemma. These perovskite microwires can reach up to a centimeter in length, and the corresponding device can realize a specific detectivity of 10 12 Jones.…”

Section: Single-functional Nmws-based Photodetectorsmentioning

confidence: 99%