Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates Export

@article{citeulike:4945404, abstract = {PMID: 19548672 We report narrow-band absorption enhancement of semiconductor nanocrystals via Förster resonance energy transfer from cyanine J-aggregates. These J-aggregated dyes associate electrostatically with short quantum-dot (QD) surface ligands in solution. Energy transfer efficiencies approach unity for this light sensitization and result in a 5-fold enhancement in the QD excitation near the J-aggregate absorption maximum. Because a thin layer of J-aggregates attenuates the same amount of light (at peak absorbance) as a far thicker film of monomer dye, these absorption-enhanced materials may have applications in light-sensitizing applications such as photodetection and optical down-conversion.}, author = {Walker, Brian J. and Nair, Gautham P. and Marshall, Lisa F. and Bulović, Vladimir and Bawendi, Moungi G.}, citeulike-article-id = {4945404}, citeulike-linkout-0 = {http://dx.doi.org/10.1021/ja902813q}, citeulike-linkout-1 = {http://pubs.acs.org/doi/abs/10.1021/ja902813q}, day = {22}, doi = {10.1021/ja902813q}, journal = {Journal of the American Chemical Society}, keywords = {dimers-aggregates, qd}, month = {July}, number = {28}, pages = {9624--9625}, posted-at = {2009-06-24 16:47:14}, priority = {2}, title = {Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates}, url = {http://dx.doi.org/10.1021/ja902813q}, volume = {131}, year = {2009} }

TY - JOUR ID - citeulike:4945404 L3 - citeulike-article-id:4945404 N2 - PMID: 19548672 We report narrow-band absorption enhancement of semiconductor nanocrystals via Förster resonance energy transfer from cyanine J-aggregates. These J-aggregated dyes associate electrostatically with short quantum-dot (QD) surface ligands in solution. Energy transfer efficiencies approach unity for this light sensitization and result in a 5-fold enhancement in the QD excitation near the J-aggregate absorption maximum. Because a thin layer of J-aggregates attenuates the same amount of light (at peak absorbance) as a far thicker film of monomer dye, these absorption-enhanced materials may have applications in light-sensitizing applications such as photodetection and optical down-conversion. IS - 28 JF - Journal of the American Chemical Society EP - 9625 TI - Narrow-Band Absorption-Enhanced Quantum Dot/J-Aggregate Conjugates VL - 131 SP - 9624 KW - dimers-aggregates KW - qd AU - Walker, Brian AU - Nair, Gautham AU - Marshall, Lisa AU - Bulović, Vladimir AU - Bawendi, Moungi PY - 2009/07/22/ UR - http://dx.doi.org/10.1021/ja902813q ER -