Holographic assembly of semiconductor CdSe quantum dots in polymer for volume Bragg grating structures with diffraction efficiency near 100

We report on the fabrication of centimeter-size transmission Bragg gratings in semiconductor CdSe quantum dots dispersed 50 μm thick photopolymer films. This was done by holographic assembly of CdSe quantum dots in a photopolymerizable monomer blend. Periodic patterning of CdSe quantum dots in polymer was confirmed by a fluorescence microscope and confocal Raman imaging. The diffraction efficiency from the grating of 1 μm spacing was near 100% in the green with 0.34 vol % CdSe quantum dots, giving the refractive index modulation as large as 5.1×10−3.

[1]  E. Kumacheva,et al.  Patterning Semiconductor Nanocrystals in Polymer Films , 2007 .

[2]  Vittorio Degiorgio,et al.  Nonlinear optical properties of semiconductor nanocrystals , 1998 .

[3]  T. Kawai,et al.  Highly Luminescent CdTe Nanocrystal–Polymer Composites Based on Ionic Liquid , 2005 .

[4]  Yasuo Tomita,et al.  Highly transparent ZrO(2) nanoparticle-dispersed acrylate photopolymers for volume holographic recording. , 2006, Optics express.

[5]  Yasuo Tomita,et al.  Improved thermal stability of volume holograms recorded in nanoparticle--polymer composite films. , 2008, Optics letters.

[6]  T. Fujimori,et al.  Lithium ion solvation in room-temperature ionic liquids involving bis(trifluoromethanesulfonyl) imide anion studied by Raman spectroscopy and DFT calculations. , 2007, The journal of physical chemistry. B.

[7]  Yasuo Tomita,et al.  Three-dimensional confocal Raman imaging of volume holograms formed in ZrO2 nanoparticle-photopolymer composite materials , 2008 .

[8]  Lalgudi V. Natarajan,et al.  One‐Step, Micrometer‐Scale Organization of Nano‐ and Mesoparticles Using Holographic Photopolymerization: A Generic Technique , 2001 .

[9]  Tatiana N. Smirnova,et al.  Effective volume holographic structures based on organic–inorganic photopolymer nanocomposites , 2009 .

[10]  Klavs F. Jensen,et al.  Full Color Emission from II–VI Semiconductor Quantum Dot–Polymer Composites , 2000 .

[11]  Yeshaiahu Fainman,et al.  PMMA quantum dots composites fabricated via use of pre-polymerization. , 2005, Optics express.

[12]  Yasuo Tomita,et al.  Holographic manipulation of nanoparticle distribution morphology in nanoparticle-dispersed photopolymers. , 2005, Optics letters.