Colloidal quantum dot photodetectors

Konstantatos, Gerasimos; Sargent, Edward H.

doi:10.1016/j.infrared.2010.12.029

Cited by 124 publications

(74 citation statements)

References 60 publications

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“…40 Shot noise is sought to be the lower noise limit achievable in such detectors but our study shows when 1/f noise may be limiting. The shot noise limit is given by S I /I 2 ¼ 2 eDf/I.…”

Section: Resultsmentioning

confidence: 99%

1/f noise in semiconductor and metal nanocrystal solids

Liu

Lhuillier

Guyot‐Sionnest

2014

Journal of Applied Physics

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Articles you may be interested inPrecise control of photoluminescence enhancement and quenching of semiconductor quantum dots using localized surface plasmons in metal nanoparticles Enhanced photorefractive effect in liquid crystal structures co-doped with semiconductor quantum dots and metallic nanoparticles Appl. Phys. Lett. 99, 191109 (2011); 10.1063/1.3659485 Photoluminescence spectroscopy and lifetime measurements from self-assembled semiconductor-metal nanoparticle hybrid arrays Appl. Phys. Lett. 97, 083307 (2010); 10.1063/1.3483162Optical coupling of core-shell quantum dots to size-selected gold clusters J. Appl. Phys.

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“…40 Shot noise is sought to be the lower noise limit achievable in such detectors but our study shows when 1/f noise may be limiting. The shot noise limit is given by S I /I 2 ¼ 2 eDf/I.…”

Section: Resultsmentioning

confidence: 99%

1/f noise in semiconductor and metal nanocrystal solids

Liu

Lhuillier

Guyot‐Sionnest

2014

Journal of Applied Physics

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“…Also, ZnO QDs in comparison with their bulk counterparts are receiving a great deal of attention in optoelectronic device because of their exceptionally optical and electrical properties arising from quantum confinement of excitons [4]. Up to now, several attempts have been carried out on the synthesis of ZnO QDs based on solution methods, but they cause abundant surface defects and it is clear that surface states of QDs have a significant role on the efficiency of them for optoelectronic devices [2,5].…”

Section: Introductionmentioning

confidence: 99%

Photoluminescence investigation of ZnO quantum dots surface modified with silane coupling agent as a capping agent

Moghaddam

Youzbashi

Kazemzadeh

et al. 2015

Journal of Luminescence

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“…Colloidal quantum dots (CQDs), semiconductor particles with dimensions on the nanometer scale stabilized in a solvent through anchoring ligands, have emerged in the last decades as a useful material in diverse applications such as light-emission [1][2][3][4][5], photodetection [6][7][8][9], biosensing [10][11][12][13][14] and photovoltaics [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Advancing colloidal quantum dot photovoltaic technology

et al. 2016

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Colloidal quantum dots (CQDs) are attractive materials for solar cells due to their low cost, ease of fabrication and spectral tunability. Progress in CQD photovoltaic technology over the past decade has resulted in power conversion efficiencies approaching 10%. In this review, we give an overview of this progress, and discuss limiting mechanisms and paths for future improvement in CQD solar cell technology. We briefly summarize nanoparticle synthesis and film processing methods and evaluate the optoelectronic properties of CQD films, including the crucial role that surface ligands play in materials performance. We give an overview of device architecture engineering in CQD solar cells. The compromise between carrier extraction and photon absorption in CQD photovoltaics is analyzed along with different strategies for overcoming this trade-off. We then focus on recent advances in absorption enhancement through innovative device design and the use of nanophotonics. Several light-trapping schemes, which have resulted in large increases in cell photocurrent, are described in detail. In particular, integrating plasmonic elements into CQD devices has emerged as a promising approach to enhance photon absorption through both near-field coupling and far-field scattering effects. We also discuss strategies for overcoming the single junction efficiency limits in CQD solar cells, including tandem architectures, multiple exciton generation and hybrid materials schemes. Finally, we offer a perspective on future directions for the field and the most promising paths for achieving higher device efficiencies.

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Colloidal quantum dot photodetectors

Cited by 124 publications

References 60 publications

1/f noise in semiconductor and metal nanocrystal solids

1/f noise in semiconductor and metal nanocrystal solids

Photoluminescence investigation of ZnO quantum dots surface modified with silane coupling agent as a capping agent

Advancing colloidal quantum dot photovoltaic technology

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