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Showing 1 to 12 of 423 entries
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Fourth world issues and beyond.

Supervisor nurse

Sargent AG.
PMID: 4489579
Superv Nurse. 1973 Aug;4(8):16-7 passim. doi: 10.1097/00006247-197308000-00009.

No abstract available.

Atomistic description of thiostannate-capped CdSe nanocrystals: retention of four-coordinate SnS4 motif and preservation of Cd-rich stoichiometry.

Journal of the American Chemical Society

Protesescu L, Nachtegaal M, Voznyy O, Borovinskaya O, Rossini AJ, Emsley L, Copéret C, Günther D, Sargent EH, Kovalenko MV.
PMID: 25597625
J Am Chem Soc. 2015 Feb 11;137(5):1862-74. doi: 10.1021/ja510862c. Epub 2015 Jan 29.

Colloidal semiconductor nanocrystals (NCs) are widely studied as building blocks for novel solid-state materials. Inorganic surface functionalization, used to displace native organic capping ligands from NC surfaces, has been a major enabler of electronic solid-state devices based on colloidal...

Renewables need a grand-challenge strategy.

Nature

Bernstein A, Sargent EH, Aspuru-Guzik A, Cogdell R, Fleming GR, Van Grondelle R, Molina M.
PMID: 27708325
Nature. 2016 Oct 06;538(7623):27-29. doi: 10.1038/538030a.

No abstract available.

Heterovalent Dopant Incorporation for Bandgap and Type Engineering of Perovskite Crystals.

The journal of physical chemistry letters

Abdelhady AL, Saidaminov MI, Murali B, Adinolfi V, Voznyy O, Katsiev K, Alarousu E, Comin R, Dursun I, Sinatra L, Sargent EH, Mohammed OF, Bakr OM.
PMID: 26727130
J Phys Chem Lett. 2016 Jan 21;7(2):295-301. doi: 10.1021/acs.jpclett.5b02681. Epub 2016 Jan 07.

Controllable doping of semiconductors is a fundamental technological requirement for electronic and optoelectronic devices. As intrinsic semiconductors, hybrid perovskites have so far been a phenomenal success in photovoltaics. The inability to dope these materials heterovalently (or aliovalently) has greatly...

Fast and Sensitive Solution-Processed Visible-Blind Perovskite UV Photodetectors.

Advanced materials (Deerfield Beach, Fla.)

Adinolfi V, Ouellette O, Saidaminov MI, Walters G, Abdelhady AL, Bakr OM, Sargent EH.
PMID: 27300753
Adv Mater. 2016 Sep;28(33):7264-8. doi: 10.1002/adma.201601196. Epub 2016 Jun 14.

The first visible-blind UV photodetector based on MAPbCl3 integrated on a substrate exhibits excellent performance, with responsivities reaching 18 A W(-1) below 400 nm and imaging-compatible response times of 1 ms. This is achieved by using substrate-integrated single crystals,...

Ultrafast Carrier Trapping in Thick-Shell Colloidal Quantum Dots.

The journal of physical chemistry letters

Jain A, Voznyy O, Korkusinski M, Hawrylak P, Sargent EH.
PMID: 28636398
J Phys Chem Lett. 2017 Jul 20;8(14):3179-3184. doi: 10.1021/acs.jpclett.7b01503. Epub 2017 Jun 28.

It has previously been found that Auger processes can lead to femtosecond carrier trapping in quantum dots, limiting their performance in optoelectronic applications that rely on radiative recombination. Using atomistic simulations, we investigate whether a shell can protect carriers...

Passivation Using Molecular Halides Increases Quantum Dot Solar Cell Performance.

Advanced materials (Deerfield Beach, Fla.)

Lan X, Voznyy O, Kiani A, García de Arquer FP, Abbas AS, Kim GH, Liu M, Yang Z, Walters G, Xu J, Yuan M, Ning Z, Fan F, Kanjanaboos P, Kramer I, Zhitomirsky D, Lee P, Perelgut A, Hoogland S, Sargent EH.
PMID: 26576685
Adv Mater. 2016 Jan 13;28(2):299-304. doi: 10.1002/adma.201503657. Epub 2015 Nov 18.

A solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be...

The Tat Protein Export Pathway.

EcoSal Plus

Palmer T, Sargent F, Berks BC.
PMID: 26443788
EcoSal Plus. 2010 Sep;4(1). doi: 10.1128/ecosalplus.4.3.2.

Proteins that reside partially or completely outside the bacterial cytoplasm require specialized pathways to facilitate their localization. Globular proteins that function in the periplasm must be translocated across the hydrophobic barrier of the inner membrane. While the Sec pathway...

Design and synthesis of 4-heteroaryl 1,2,3,4-tetrahydroisoquinolines as triple reuptake inhibitors.

ACS medicinal chemistry letters

Liu S, Zha C, Nacro K, Hu M, Cui W, Yang YL, Bhatt U, Sambandam A, Isherwood M, Yet L, Herr MT, Ebeltoft S, Hassler C, Fleming L, Pechulis AD, Payen-Fornicola A, Holman N, Milanowski D, Cotterill I, Mozhaev V, Khmelnitsky Y, Guzzo PR, Sargent BJ, Molino BF, Olson R, King D, Lelas S, Li YW, Johnson K, Molski T, Orie A, Ng A, Haskell R, Clarke W, Bertekap R, O'Connell J, Lodge N, Sinz M, Adams S, Zaczek R, Macor JE.
PMID: 25050161
ACS Med Chem Lett. 2014 May 13;5(7):760-5. doi: 10.1021/ml500053b. eCollection 2014 Jul 10.

A series of 4-bicyclic heteroaryl 1,2,3,4-tetrahydroisoquinoline inhibitors of the serotonin transporter (SERT), norepinephrine transporter (NET), and dopamine transporter (DAT) was discovered. The synthesis and structure-activity relationship (SAR) of these triple reuptake inhibitors (TRIs) will be discussed. Compound 10i (AMR-2),...

Cleavable Ligands Enable Uniform Close Packing in Colloidal Quantum Dot Solids.

ACS applied materials & interfaces

Carey GH, Yuan M, Comin R, Voznyy O, Sargent EH.
PMID: 26378717
ACS Appl Mater Interfaces. 2015 Oct 07;7(39):21995-2000. doi: 10.1021/acsami.5b06890. Epub 2015 Sep 28.

Uniform close packing in colloidal quantum dot solids is critical for high-optical density, high-mobility optoelectronic devices. A hybrid-ligand strategy is developed, combining the advantages of solid state and solution-phase ligand exchanges. This strategy uses a medium length thioamide ligand...

Hybrid tandem quantum dot/organic photovoltaic cells with complementary near infrared absorption.

Applied physics letters

Kim T, Palmiano E, Liang RZ, Hu H, Murali B, Kirmani AR, Firdaus Y, Gao Y, Sheikh A, Yuan M, Mohammed OF, Hoogland S, Beaujuge PM, Sargent EH, Amassian A.
PMID: 28652643
Appl Phys Lett. 2017 May 29;110(22):223903. doi: 10.1063/1.4984023. Epub 2017 Jun 01.

Monolithically integrated hybrid tandem solar cells that effectively combine solution-processed colloidal quantum dot (CQD) and organic bulk heterojunction subcells to achieve tandem performance that surpasses the individual subcell efficiencies have not been demonstrated to date. In this work, we...

High-Efficiency Colloidal Quantum Dot Photovoltaics via Robust Self-Assembled Monolayers.

Nano letters

Kim GH, García de Arquer FP, Yoon YJ, Lan X, Liu M, Voznyy O, Jagadamma LK, Abbas AS, Yang Z, Fan F, Ip AH, Kanjanaboos P, Hoogland S, Kim JY, Sargent EH.
PMID: 26509283
Nano Lett. 2015 Nov 11;15(11):7691-6. doi: 10.1021/acs.nanolett.5b03677. Epub 2015 Nov 02.

The optoelectronic tunability offered by colloidal quantum dots (CQDs) is attractive for photovoltaic applications but demands proper band alignment at electrodes for efficient charge extraction at minimal cost to voltage. With this goal in mind, self-assembled monolayers (SAMs) can...

Showing 1 to 12 of 423 entries