J. Semicond. > 2021, Volume 42 > Issue 8 > 082901
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Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures

Zeguo Song1, Yunkun Wang1, Yunke Zhu1, Peng Bai1, An Hu1 and Yunan Gao1, 2, 3,

+ Author Affiliations

 Corresponding author: Yunan Gao, gyn@pku.edu.cn

DOI: 10.1088/1674-4926/42/8/082901

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Abstract: Colloidal CdSe nanoplatelets are thin semiconductor materials with atomic flatness surfaces and one-dimensional strong quantum confinement, and hence they own very narrow and anisotropic emission. Here, we present a polydimethylsiloxane (PDMS) assisted transferring method that can pick up single layer CdSe nanoplatelet films self-assembled on a liquid surface and then precisely transfer to a target. By layer-by-layer picking up and transferring, multiple layers of CdSe films can be built up to form CdSe stacks with each single layer having dominant in-plane transition dipole distribution, which both material and energic structures are analogous to traditional multiple quantum wells grown by molecular-beam epitaxy. Additionally, with the great flexibility of colloidal nanoplatelets and this transferring method, CdSe nanoplatelets films can be combined with other materials to form hybrid heterostructures. We transferred a single-layer CdSe film onto WS2 flakes, and precisely studied the fast energy transfer rate with controlled CdSe nanoplatelet orientation and by using a streak camera with a ps time resolution.

Key words: CdSe nanoplatelets, self-assembly, transfer, energy transfer, hybrid heterostructures, WS2



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[8]
Giovanella U, Pasini M, Lorenzon M, et al. Efficient solution-processed nanoplatelet-based light-emitting diodes with high operational stability in air. Nano Lett, 2018, 18, 3441 doi: 10.1021/acs.nanolett.8b00456
[9]
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Li X, Lu Z L, Wang T. Self-assembly of semiconductor nanoparticles toward emergent behaviors on fluorescence. Nano Res, 2021, 14, 1233 doi: 10.1007/s12274-020-3140-y
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[28]
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[29]
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[30]
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[31]
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Fig. 1.  (Color online) (a) Absorption and photoluminescence spectra of the CdSe nanoplatelets. (b) Transmission electron microscopy (TEM) image of the nanoplatelets. (c) Schematic of PDMS assisted transferring method. (d) A bright-field microscopy image of a single layer of the CdSe nanoplatelet film on a SiO2/Si substrate with WS2 flakes. (e) Photoluminescence microscopy image of CdSe films with one, two and three layers of nanoplatelets.

DownLoad: Full-Size Img PowerPoint
Fig. 2.  (Color online) (a) Photoluminescence microscopy image of a layer CdSe film transferred on a cover glass. (b, c) TEM images of a film on a SiN substrate: (b) panel (lower magnification) shows the homogeneity, and several voids are pointed out by dashed circles; (c) panel (higher magnification) shows that nanoplatelets have dominant in-plane orientation of about 90%, and the inset displayed a zoomed-in portion with nanoplatelets in edge-up (circled in dashed lines) and face-down orientations.

DownLoad: Full-Size Img PowerPoint
Fig. 3.  (Color online) (a) AFM image of a CdSe nanoplatelet monolayer film transferred on a cover glass. (b) Height histography of panel a, two peaks correspond to the bare glass and the height of the film. (c) Back focal plane image of the film. (d) Comparison between simulation and experimental BFP results along the dashed crossline in panel c.

DownLoad: Full-Size Img PowerPoint
Fig. 4.  (Color online) (a) Up-left panel is an optical microscopy image of WS2 flakes on SiO2/Si, and down-right panel is an AFM image of single-layer CdSe nanoplatelets transferred on the WS2 flakes. (b) Wide field photoluminescence image of the CdSe film on/off the WS2 flakes, and the insets show the intensity change along the dashed white lines. (c) Time- and wavelength-resolved photoluminescence images measured by a streak camera. (d) Integrated intensity decay traces over the emission band in panel c, and biexponential functions are used to fit the decay traces. (e) Similar measurements as in panel c but with a shorter detection window and higher time resolution. (f) Comparison of photoluminescence decay of CdSe nanoplatelets on monolayer and trilayer WS2.

DownLoad: Full-Size Img PowerPoint
[1]
Kovalenko M V, Manna L, Cabot A, et al. Prospects of nanoscience with nanocrystals. ACS Nano, 2015, 9, 1012 doi: 10.1021/nn506223h
[2]
Gao Y N, Weidman M C, Tisdale W A. CdSe nanoplatelet films with controlled orientation of their transition dipole moment. Nano Lett, 2017, 17, 3837 doi: 10.1021/acs.nanolett.7b01237
[3]
Ithurria S, Tessier M D, Mahler B, et al. Colloidal nanoplatelets with two-dimensional electronic structure. Nat Mater, 2011, 10, 936 doi: 10.1038/nmat3145
[4]
Scott R, Heckmann J, Prudnikau A V, et al. Directed emission of CdSe nanoplatelets originating from strongly anisotropic 2D electronic structure. Nat Nanotechnol, 2017, 12, 1155 doi: 10.1038/nnano.2017.177
[5]
Kim W D, Kim D, Yoon D E, et al. Pushing the efficiency envelope for semiconductor nanocrystal-based electroluminescence devices using anisotropic nanocrystals. Chem Mater, 2019, 31, 3066 doi: 10.1021/acs.chemmater.8b05366
[6]
Yang Z, Pelton M, Fedin I, et al. A room temperature continuous-wave nanolaser using colloidal quantum wells. Nat Commun, 2017, 8, 143 doi: 10.1038/s41467-017-00198-z
[7]
Grim J Q, Christodoulou S, Di Stasio F, et al. Continuous-wave biexciton lasing at room temperature using solution-processed quantum wells. Nat Nanotechnol, 2014, 9, 891 doi: 10.1038/nnano.2014.213
[8]
Giovanella U, Pasini M, Lorenzon M, et al. Efficient solution-processed nanoplatelet-based light-emitting diodes with high operational stability in air. Nano Lett, 2018, 18, 3441 doi: 10.1021/acs.nanolett.8b00456
[9]
Zhang F J, Wang S J, Wang L, et al. Super color purity green quantum dot light-emitting diodes fabricated by using CdSe/CdS nanoplatelets. Nanoscale, 2016, 8, 12182 doi: 10.1039/C6NR02922A
[10]
Boles M A, Engel M, Talapin D V. Self-assembly of colloidal nanocrystals: From intricate structures to functional materials. Chem Rev, 2016, 116, 11220 doi: 10.1021/acs.chemrev.6b00196
[11]
Li X, Lu Z L, Wang T. Self-assembly of semiconductor nanoparticles toward emergent behaviors on fluorescence. Nano Res, 2021, 14, 1233 doi: 10.1007/s12274-020-3140-y
[12]
Vanmaekelbergh D. Self-assembly of colloidal nanocrystals as route to novel classes of nanostructured materials. Nano Today, 2011, 6, 419 doi: 10.1016/j.nantod.2011.06.005
[13]
Dong A, Chen J, Vora P M, et al. Binary nanocrystal superlattice membranes self-assembled at the liquid-air interface. Nature, 2010, 466, 474 doi: 10.1038/nature09188
[14]
Abécassis B, Tessier M D, Davidson P, et al. Self-assembly of CdSe nanoplatelets into giant micrometer-scale needles emitting polarized light. Nano Lett, 2014, 14, 710 doi: 10.1021/nl4039746
[15]
Erdem O, Foroutan S, Gheshlaghi N, et al. Thickness-tunable self-assembled colloidal nanoplatelet films enable ultrathin optical gain media. Nano Lett, 2020, 20, 6459 doi: 10.1021/acs.nanolett.0c02153
[16]
Momper R, Zhang H, Chen S, et al. Kinetic control over self-assembly of semiconductor nanoplatelets. Nano Lett, 2020, 20, 4102 doi: 10.1021/acs.nanolett.9b05270
[17]
Erdem O, Gungor K, Guzelturk B, et al. Orientation-controlled nonradiative energy transfer to colloidal nanoplatelets: Engineering dipole orientation factor. Nano Lett, 2019, 19, 4297 doi: 10.1021/acs.nanolett.9b00681
[18]
Bai P, Hu A, Liu Y, et al. Printing and in situ assembly of CdSe/CdS nanoplatelets as uniform films with unity in-plane transition dipole moment. J Phys Chem Lett, 2020, 11, 4524 doi: 10.1021/acs.jpclett.0c00748
[19]
Özdemir O, Ramiro I, Gupta S, et al. High sensitivity hybrid PbS CQD-TMDC photodetectors up to 2 μm. ACS Photonics, 2019, 6, 2381 doi: 10.1021/acsphotonics.9b00870
[20]
Prins F, Kim D K, Cui J, et al. Direct patterning of colloidal quantum-dot thin films for enhanced and spectrally selective out-coupling of emission. Nano Lett, 2017, 17, 1319 doi: 10.1021/acs.nanolett.6b03212
[21]
He Z, Chen B, Hua Y, et al. CMOS compatible high-performance nanolasing based on perovskite-SiN hybrid integration. Adv Opt Mater, 2020, 8, 2000453 doi: 10.1002/adom.202000453
[22]
Prasai D, Klots A R, Newaz A, et al. Electrical control of near-field energy transfer between quantum dots and two-dimensional semiconductors. Nano Lett, 2015, 15, 4374 doi: 10.1021/acs.nanolett.5b00514
[23]
Dutta A, Medda A, Bera R, et al. Hybrid nanostructures of 2D CdSe nanoplatelets for high-performance photodetector using charge transfer process. ACS Appl Nano Mater, 2020, 3, 4717 doi: 10.1021/acsanm.0c00728
[24]
Rowland C E, Fedin I, Zhang H, et al. Picosecond energy transfer and multiexciton transfer outpaces Auger recombination in binary CdSe nanoplatelet solids. Nat Mater, 2015, 14, 484 doi: 10.1038/nmat4231
[25]
She C X, Fedin I, Dolzhnikov D S, et al. Low-threshold stimulated emission using colloidal quantum wells. Nano Lett, 2014, 14, 2772 doi: 10.1021/nl500775p
[26]
Paik T, Ko D K, Gordon T R, et al. Studies of liquid crystalline self-assembly of GdF3 nanoplates by in-plane, out-of-plane SAXS. ACS Nano, 2011, 5, 8322 doi: 10.1021/nn203049t
[27]
Schuller J A, Karaveli S, Schiros T, et al. Orientation of luminescent excitons in layered nanomaterials. Nat Nanotechnol, 2013, 8, 271 doi: 10.1038/nnano.2013.20
[28]
Taghipour N, Hernandez Martinez P L, Ozden A, et al. Near-unity efficiency energy transfer from colloidal semiconductor quantum wells of CdSe/CdS nanoplatelets to a monolayer of MoS2. ACS Nano, 2018, 12, 8547 doi: 10.1021/acsnano.8b04119
[29]
Prins F, Goodman A J, Tisdale W A. Reduced dielectric screening and enhanced energy transfer in single- and few-layer MoS2. Nano Lett, 2014, 14, 6087 doi: 10.1021/nl5019386
[30]
Raja A, Montoya−Castillo A, Zultak J, et al. Energy transfer from quantum dots to graphene and MoS2: The role of absorption and screening in two-dimensional materials. Nano Lett, 2016, 16, 2328 doi: 10.1021/acs.nanolett.5b05012
[31]
Liu H, Wang T, Wang C, et al. Exciton radiative recombination dynamics and nonradiative energy transfer in two-dimensional transition-metal dichalcogenides. J Phys Chem C, 2019, 123, 10087 doi: 10.1021/acs.jpcc.8b12179

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    Received: 28 February 2021 Revised: 29 March 2021 Online: Accepted Manuscript: 27 April 2021Uncorrected proof: 14 May 2021Published: 01 August 2021

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      Article Navigation >  Journal of Semiconductors  > 2021  >  42(8): 082901
      Zeguo Song, Yunkun Wang, Yunke Zhu, Peng Bai, An Hu, Yunan Gao. Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures[J]. Journal of Semiconductors, 2021, 42(8): 082901. doi: 10.1088/1674-4926/42/8/082901 ****Z G Song, Y K Wang, Y K Zhu, P Bai, A Hu, Y N Gao, Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures[J]. J. Semicond., 2021, 42(8): 082901. doi: 10.1088/1674-4926/42/8/082901.
      Citation:
      Zeguo Song, Yunkun Wang, Yunke Zhu, Peng Bai, An Hu, Yunan Gao. Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures[J]. Journal of Semiconductors, 2021, 42(8): 082901. doi: 10.1088/1674-4926/42/8/082901 ****
      Z G Song, Y K Wang, Y K Zhu, P Bai, A Hu, Y N Gao, Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures[J]. J. Semicond., 2021, 42(8): 082901. doi: 10.1088/1674-4926/42/8/082901.
      shu

      Targeted transfer of self-assembled CdSe nanoplatelet film onto WS2 flakes to construct hybrid heterostructures

      DOI: 10.1088/1674-4926/42/8/082901
      • 1.

        State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China

      • 2.

        Frontiers Science Center for Nano-optoelectronics, Beijing 100871, China

      • 3.

        Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China

      More Information
      • Zeguo Song：received his B.S. degree in Physics (2018) at Shanghai University. He is currently pursuing his M.S. degree at School of Physics, Peking University. His current work focuses on study of optical properties of CdSe nanoplatelets
      • Yunan Gao：received his PhD from Delft University of Technology at 2012. In 2017 he joined School of Physics Peking University as an assistant professor. His research focuses on synthesis, self-assembly and optical property studies of colloidal semiconductor nanocrystals
      • Corresponding author: gyn@pku.edu.cn
      • Received Date: 2021-02-28
      • Revised Date: 2021-03-29
      • Published Date: 2021-08-10

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