Tunable photoluminescence

Copolymers containing alternating l,4-bis(phenylethenyl)benzene, l,4-bis(phenylethenyl)-2,5-dimethoxybenzene or l,5-bis(phenylethenyl)naphthalene chromophores, and dibenzo-24-crown-8 spacers within the polymer backbone, best represented by 87, showed blue light emission in solution, and tunable photoluminescence and electroluminescence depending on the structure of the chromophore. Blends of these copolymers with a small amount of poly(ethylene oxide), and lithium salt as active layers, form efficient light-emitting electrochemical cells <2003JMC800>. 

S. Chattopadhyay, X. L. Li, and P. W. Bohn, In-plane control of morphology and tunable photoluminescence in porous silicon produced by metal-assisted electroless chemical etching, J. Appl. Phys. 91, 6134-6140 (2002). 

Redistribution of the space-charge of the excited carriers is presented in Fig. 1. Therewith at low temperatures, as seen in Fig. 2, the tunable photoluminescence band maximum coincides with the difference of the quasi-Fermi levels AF, which in turn is close to the effective energy gap Eg of the doped superlattice. At... 

Wang, C.-W. and Moffltt, M. G. (2004) Surface-Tunable Photoluminescence from Block-Copolymer Stabilized Cadmium Sulfide Quantum Dots. Langm., 20,11784-96. 

S.-J. Park, S.-G. Kang, M. Fryd, J. G. Saven, S.-J. Park, Highly Tunable Photoluminescent Properties of Amphiphilic Conjugated Block Copolymers. J. Am. Chem. Soc. 2010,132, 9931-9933. 

Wang C, Yan E, Li G, Sun Z, Wang S, Tong Y, et al. Tunable photoluminescence of polyCphenylene vinylene) nanofibers by doping of semiconductor quantum dots and polymer. Synth Met 2010 160(13-14) 1382-6. 

Chattopadhyay S, Bohn PW (2004) Direct-write patterning of microstructured porous silicon arrays by focused-ion-beam Pt deposition and metal-assisted electroless etching. J Appl Phys 96 6888 Chattopadhyay S, Bohn PW (2006) Surfactant-induced modulation of light emission in porous silicon produced by metal-assisted electroless etching. Anal Chem 78(17) 6058-6064 Chattopadhyay S, Li X, Bohn PW (2002) In-plane control of morphology and tunable photoluminescence in porous silicon produced by metal-assisted electroless chemical etching. J Appl Phys 91 6134-6140... 

A. Bouhelier et al.. Surface plasmon characteristics of tunable photoluminescence in single gold nanorods, Physical Review Letters, 95(26), 267405 (2005). 

Tunable Photoluminescence of Poly(quinoline)s in Polymer Blend Films and Silica... 

Large quantities of CuInSe2 nanocrystals were synthesised by the reaction of copper iodide, indium acetate and tert-butylphosphine selenide in a mixture of dodecanethiol, octadecene, oleic acid at 200 °C. The nanocrystals produced showed tunable photoluminescence spectra ranging from 600 to 850nm. Two-dimensional photoluminescence spectra are also reported with the synthesis of Type-I heterostructured CuInSe2/ZnS nanocrystals. 

Liu K, You H, Zhoig Y et al (2010) Facile and rapid fabrication of metal-organic framework nanobelts and colm-tunable photoluminescence properties. J Mater Chem 20 3272... 

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