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Wrong Vladimir Bulovic?

Prof. Vladimir Bulovic

Professor of Electrical Engineering

Massachusetts Institute of Technology

Direct Phone: (617) ***-****       

Email: b***@***.edu

Massachusetts Institute of Technology

77 Massachusetts Avenue

Cambridge, Massachusetts 02139

United States

Company Description

The mission of MIT is to advance knowledge and educate students in science, technology, and other areas of scholarship that will best serve the nation and the world in the 21st century. MIT is dedicated to providing its students with an education that com... more

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Background Information

Employment History

Research Associate
Princeton University

Graduate Researcher
Princeton University

Member, Microelectronics Sciences Laboratory
Columbia University


Co-Founder and Scientific Advisor
Kateeva Inc

Scientific Advisor,Co-Founder
QD Vision Inc

Kateeva Inc

Advisory Board Member
Nuelight Corp


electrical engineering
Princeton University

Electrical Engineering
Princeton University

electrical engineering
Princeton University

electrical engineering M.S.

Columbia University

Web References (198 Total References)

To create its ultra-lightweight solar ...

www.osa-opn.org [cached]

To create its ultra-lightweight solar cells, the first research team-led by Vladimir Bulovic of the Massachusetts Institute of Technology (MIT), USA-focused particularly on slimming down the solar-cell substrate. At present, the most common substrate for photovoltaics is glass, which-while exceptionally smooth and strong-adds substantial weight and rigidity to the solar cell built on top of it. As a lighter and more flexible replacement, the scientists zeroed in on a substrate candidate called parylene-C, an organic chemical that is known to form thin, smooth films, and that is already used commercially as a protective coating in biomedical and electronic components.

The key to the ultrathin cells, however, lies, according to Bulovic, not in the specific material but in the method. That method begins with spin-coating a glass foundation with a solvent that acts as a "release" layer to allow for removal of the solar cell. Then, using vapor deposition in vacuum conditions, a base layer of parylene is laid down on the glass, followed by organic solar-cell components, which are finally overtopped by an additional protective coating of parylene. The ultrathin component is then peeled off of the glass.
The fabrication method allows the entire device to be created in a single room-temperature process, without handling the fragile device or breaking the vacuum, minimizing the risks of damage. "The innovative step," according to Bulovic, "is the realization that you can grow the substrate at the same time you grow the device."

"It could be so light that ...

ecourbanlab.com [cached]

"It could be so light that you don't even know it's there, on your shirt or on your notebook," MIT professor Vladimir Bulovic says. "These cells could simply be an add-on to existing structures."

This lightweight solar cell is just one-fiftieth of the thickness of a human hair
Bulovic, research scientist Annie Wang, and doctoral student Joel Jean reveal that this innovation is realized by combining the manufacturing of the solar cell and its two components in one procedure.
"It could be so light that you don't even know it's there, on your shirt or on your notebook," Vladimir Bulovic says.
"We have a proof-of-concept that works," Bulovic says.
"It could be so light that you don't even know it's there, on your shirt or on your notebook," Bulovic says.

The new process is described in ...

www.rdmag.com [cached]

The new process is described in a paper by MIT professor Vladimir Bulovic, research scientist Annie Wang, and doctoral student Joel Jean, in the journal Organic Electronics.

Bulovic, MIT's associate dean for innovation and the Fariborz Maseeh (1990) Professor of Emerging Technology, says the key to the new approach is to make the solar cell, the substrate that supports it, and a protective overcoating to shield it from the environment, all in one process. The substrate is made in place and never needs to be handled, cleaned, or removed from the vacuum during fabrication, thus minimizing exposure to dust or other contaminants that could degrade the cell's performance.
"The innovative step is the realization that you can grow the substrate at the same time as you grow the device," Bulovic says.
Bulovic says that like most new inventions, it all sounds very simple -- once it's been done.
"It could be so light that you don't even know it's there, on your shirt or on your notebook," Bulovic says. "These cells could simply be an add-on to existing structures."
Still, this is early, laboratory-scale work, and developing it into a manufacturable product will take time, the team says. Yet while commercial success in the short term may be uncertain, this work could open up new applications for solar power in the long term. "We have a proof-of-concept that works," Bulovic says.

Company Stories Q-R

www.carl-nelson.com [cached]

QD Vision (Watertown, MA; $900K SBIR) got an Army Phase 2 SBIR to continue the development of micro-displays based on the company's quantum dot light emitting diode (QLED) technology. ... part of the firms VC backing comes from CIA's In-Q-Tel. .... t echnology is based on the work of Vladimir Bulovic, an associate professor of electrical engineering and computer science at MIT, and Moungi Bawendi, a professor of chemistry at MIT focused on the synthesis of nanomaterials [Mass High Tech, Jun 9, 09]

Blog | Peak to Peak LED, Inc.

www.peaktopeakled.com [cached]

"The main benefit of the quantum dot is you're able to get a really efficient lightbulb with a high-quality color rendering index," says Vladimir Bulovic, a professor of electrical engineering and leader of the Organic and Nanostructured Electronics Laboratory at MIT. He says the QD Vision optic represents the first practical optoelectronic device based on this technology.

Bulovic and other researchers are working on creating quantum-dot LEDs that are electrically pumped, thus eliminating the need for a gallium-nitride LED as a photon source. But the electroluminescent LEDs produced so far in laboratories are still in their early stages. To make such devices, researchers closely pack the quantum dots in an organic thin film that acts as a transport layer for electrons. But doing so reduces the luminescent efficiency of the dots from more than 90 percent to about 15 percent.
The first practical use of electrically pumped quantum-dot LEDs will likely be in displays, such as computer monitors, where Bulovic says they'll provide more saturated color than organic LEDs do but still retain that technology's ease of manufacturing and flexibility. Electrically pumped quantum-dot solid-state lighting will take longer, because reaching the brightness required for general illumination requires driving the LEDs at higher currents, which reduces their lifetime. But Bulovic is sure that researchers will eventually reach that goal.

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