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GET TO KNOW YOUR NEIGHBOR ; SDEE 2015 Year End Social on Dec 8th in San Diego ; Must Attend 5-Day Event in San Diego Starting Tomorrow! -- CDW on Cells, Sensors, and Sysems, with Updates on Stem Cells ; SDEE October 2015 Event - Financings: Tales from the Tranches ; Allele Biotech Takes Major Step into Nano Antibody Leadership Position
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Immune systems, T cell Therapy, stem cell therapy
 
Broadband, Polarization-Sensitive Photodetector Based on Optically-Thick Films of Macroscopically Long, Dense, and Aligned Carbon Nanotubes
Wednesday, 02.27.2013, 12:13pm
Increasing performance demands on photodetectors and solar cells require the development of entirely new materials and technological approaches. We report on the fabrication and optoelectronic characterization of a photodetector based on optically-thick films of dense, aligned, and macroscopically long single-wall carbon nanotubes. The photodetector exhibits broadband response from the visible to the mid-infrared under global illumination, with a response time less than 32 μs. Scanning photocurrent microscopy indicates that the signal originates at the contact edges, with an amplitude and width that can be tailored by choosing different contact metals. A theoretical model demonstrates the photothermoelectric origin of the photoresponse due to gradients in the nanotube Seebeck coefficient near the contacts. The experimental and theoretical results open a new path for the realization of optoelectronic devices based on three-dimensionally organized nanotubes.
[Report] InP Nanowire Array Solar Cells Achieving 13.8% Efficiency by Exceeding the Ray Optics Limit
Wednesday, 01.23.2013, 10:29am
Nanowire solar cells were fabricated that exhibit high photocurrents and low surface recombination.
Enhanced power-conversion efficiency in polymer solar cells using an inverted device structure
Tuesday, 08.21.2012, 10:16am
Polymer solar cells are lightweight and may represent a low-cost source of energy, although efficiency still prohibits many practical applications. Here researchers demonstrate polymer solar cells with a certified efficiency of 9.2%. This is achieved by employing an inverted structure that aids photogenerated charge-carrier collection and photon harvesting.


 
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::| Hot News
Stem cells in the limelight
The genomic landscape of adult T cell leukemia/lymphoma
Reversed-polarity Treg cell TCRs provide a shock
Reversed-polarity Treg cell TCRs provide a shock
Subversion of anticancer immunosurveillance by radiotherapy
[Report] Genomic correlates of response to CTLA4 blockade in metastatic melanoma
CD47 blockade triggers T cell–mediated destruction of immunogenic tumors
CD8+ T cell diversification by asymmetric cell division
CD47 blockade triggers T cell–mediated destruction of immunogenic tumors
DPP4 in anti-tumor immunity: going beyond the enzyme