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Olive Crostini Recipe

Prep time: 15 minutes Cook time: 2 minutes Yield: Makes approximately 24 toasts.

Ingredients 1/2 cup black olives 1/2 cup green olives with pimientos 2 medium cloves garlic 1/2 cup fresh grated Parmesan cheese 4 Tbsp butter 2 Tbsp olive oil 1/2 cup Monterey jack cheese, grated 1/4 cup fresh parsley, chopped 1 baguette

Method

Chop olives in a food processor. Transfer to medium bowl. With machine running, drop garlic through the feed tube of the food processor and mince. Add Parmesan, butter, and olive oil, and process into a paste. Add butter mixture to bowl with olives. Fold in jack cheese and parsley. Cut baguette into thin slices and spread each slice generously with olive mixture. Cook under broiler until bubbly and lightly browned – about 2 minutes.

Serve right out of oven. Helps to make olive mixture in advance and spread right before you put in the oven.

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The technique inserts platinum atoms inside the polymer interchain of an organic semiconductor, with different spacings allowing it to produce different colors of light. Their hope is to create a polymer with various spacings of platinum atoms, allowing them together to create white light from a single material.

Z. Valy Vardeny, University of Utah physicist, uses a glove box to handle light-emitting polymers under cleanroom conditions.
SOURCE: University of Utah

“We put the platinum atoms inside a polymer interchain using a synthetic process,” said University of Utah Professor Z. Valy Vardeny in a telephone interview with EE Times. “And we change the spacing between the platinum atoms to tune the color emitted.”

In addition, the platinum-rich polymers not only fluoresce, like R-G-B LEDs, but also phosphoresce like phosphor-coated LEDs, potentially making them much more energy efficient than traditional OLEDs.

“OLEDs today fluoresce, converting only about 25 percent of their energy into light, but our platinum-rich polymer is phosphorescent too, allowing us to recover come of the remaining 75 percent of electrical energy,” said Vardeny.

The next step for the researchers is to experiment with different spacings between the platinum atoms in the polymer interchain, as well as to experiment with other heavy molecules besides platinum. To date, the researchers have produced two materials — one with a platinum atoms between every link in the interchain — resulting in violet and yellow light, the other inserted a platinum atom between every third link, resulting in blue and orange light. The hope is that a polymer with various spacings between platinum atoms can produce all the wavelengths in white light.

“The ultimate goal is to create white light. Unfortunately, white light is very not well defined, but essentially we want to emit all colors,” said Vardeny.

The platinum-rich polymer today must be stimulated by light to work, but once the formula for a white-light polymer is defined, the researchers will fashion an OLED material out of it that emits in response to electrical stimulation. The researchers estimate about a year will be needed to perfect the white-light emitting polymer and another two to convert it into an OLED.

The researchers also plan to apply the technique to creating a new type of solar cell. And because platinum-rich polymers allow information to be stored on the spin of electrons, the material has the potential to create a new type of memory chip.

Get all the details in the free downloadfrom Scientific Reports.

Funding was provided by the US Department of Energy and the National Science Foundation, the National Natural Science Foundation of China, and China’s Fundamental Research Funds for the Central Universities. The research was conducted in cooperation with Los Alamos National Laboratory scientist Sergei Tretiak, University of Utah postdoctoral researcher Chuanxiang Sheng (now at Nanjing University of Science and Technology in China), and with University of Utah doctoral candidates Sanjeev Singh, Alessio Gambetta, Tomer Drori, and Minghong Tong. Chemist Leonard Wojcik synthesized the platinum-rich polymers.

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