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국내에서 개발한 최고 효율의 투명 태양전지

Better ways to harness the power of the sun.
That’s among the hottest green energy research that’s ongoing around the world.
A team in Korea has developed a breakthrough technology
Lee Ji-won introduces to us what could be the next level in solar energy.
When people think of solar panels… what might come to mind is a dark, inflexible object installed on a roof.
But the solar panels of today are more transparent with more applications than ever.
Now, a Korean team of researchers says it’s developed new solar cells that are more transparent and efficient than their predecessors, potentially allowing households to save energy and money.
They could even be used to charge your phone.

The team was aiming to narrow the gap between transparency and efficiency, while also addressing a major obstacle — uneven application of the material used to coat the cells.
Their method of coating the cells allows for even application, resulting in greater transparency, better conductivity and longer life.

“By coating a piece of glass or transparent plastic with nickel oxide and zinc oxide, we found a way for the solar cell to efficiently absorb and convert UV rays into solar energy while letting the visible light pass through.”

The panels they developed are over 80-percent transparent and convert 8-percent of the light they take in, which is extremely high compared to existing solar cells that are either 20-percent transparent or are much less efficient.

“The transparent solar cell is also two-sided, meaning that light can enter from both sides… so when it’s attached to a window, it will generate energy from the sunlight in the morning.. and from the artificial light inside the room at night.

The team is now working to vary the cell’s shape, thickness and flexibility… so it can be attached to any object, including cars, phones and windows… and still function when needed.
With the global transparent solar cell market expected to grow over 17-billion U.S. dollars by 2020, the team says its goal is to commercialize the solar cell in two years,… offering consumers an environmentally and economically friendly energy source… as well as a convenient way to charge everyday devices.
Lee Ji-won, Arirang News.

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Moving into a new house is exciting, and exploring all the nooks and crannies is part of the fun. But sometimes you might stumble across something a lot more interesting than a spider. These people were just minding their own business on their new property when they found strange things in their own backyard.

10. $175,000 Worth of Weed
A man’s idea to install solar panels led to the discovery of $175,000 worth of pot. Digging around in his backyard, Mack Reed stumbled across an open vault hidden underneath a hot tub. Reed called in a technician to take a look, and it was then that he spied a bag stuffed inside. In the bag was the mother lode of weed. There were about sixty little bottles containing weed, and sealed bags with other kinds of drugs.

9. Alligator
Sharon Bente took it upon herself to investigate. She was taken aback to see an eight foot alligator swimming in the pool. She immediately called her husband and he saw that the reptile had clawed a hole right through their patio screen. While the two watched, the alligator tried to lift itself out of the pool but failed, so he just continued to swim around. Finally an alligator trapper came and was able to remove the reptile.

8. A Ferrari
In 1978 a car in good condition was discovered buried in a Los Angeles yard. This sparked a police investigation, where it was found that the car had been reported stolen in 1974.

7. Ancient Stone
An ancient stone that was recorded in legal papers dating back to 1170 was discovered by an amateur historian after he researched the history of his own home. Stephen Davis read up on the history of the house he owned and came across a reference to an ancient stone that was thought to have marked a burial plot from the Bronze Age dating back to about 2,500 B.C.

6. Metal Door to the Past
What would you do if you discovered a metal door hidden in your backyard? The Zwick family was faced with this decision and they hesitated for ten years before they decided to get the door open and have a peek at what was inside. When the door swung open they found a metal bunker in the ground. A ladder was fastened to the side and the family saw that the bunker was flooded with water. They had found a war shelter dating back to the Cold War.

5. Mystery Object
Digging for worms in their backyard led two Kitchener sisters to something mysterious. They dug up what appeared to be a shiny rock. The object almost glowed in a blue color and was as big as the sisters’ heads. At first they thought that the object was part of a meteorite that fell in the region the month before. However, earth sciences professor Phil McCausland disagreed, saying that the visible layer of the object should have been much darker if it really was part of a meteorite.

4. Human Remains
The residents of a brand new home in Yuba City, California got a little spooked when their family dog scratched a pot out of the ground that contained human remains. Police and anthropologists descended upon the house to investigate the find, and decided that the discovery may the remains of a religious ritual. After a routine search of the property, other artifacts such as doll fragments and unexplained objects were also discovered that tie in with the remains.

3. Woolly Mammoth Bones
John from Iowa and his two boys were picking blackberries in the thickly wooded area on their property in 2010 when one of the boys thought he spotted a ball in the distance. Upon getting closer to the object John saw that it was no ball, but was in fact a bone sticking out of the ground. He started digging and eventually produced a four foot femur. He took the bone to the University of Iowa, where it was identified as belonging to a woolly mammoth that lived during the Ice Age. Fossil experts undertook two digs on John’s property and discovered foot bones as well as rib bones.

2. Mastodon Bones
Renovations to a backyard pond in Hyde Park, New York turned into a full scale excavation after the owner discovered a large bone at the bottom. Larry Lozier was dredging the pond so he could make it deeper when he came across the bone buried in mud. Thinking it might be a bone from a cow or horse, he loaded it onto his truck and drove around with it for a few days. He even took it to a barbeque and his friends took a look at it. No one believed it could be from a mastodon until Lozier called Dr. Christopher R. Lindner, who took a drive to his Hyde Park home to take a look.

1. Aboriginal Skeleton
It’s not everyday that the discovery of an 400 year old skeleton costs a family $5,000. Ken Sauve discovered bones in the yard while trying to create holes deep enough for fence posts. Thinking the bones belong to an animal, Ken quickly forgot about them. When his wife Nicole pressed the issue, they kept digging and eventually unearthed the skeleton of an aboriginal woman.

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