[과학]Installed on a glass window to produce electricity…Development of a’transparent solar cell’

[앵커]

A transparent solar cell that can be installed on a glass window to generate electricity has been developed.

In addition, a smart glass window that automatically turns dark when exposed to sunlight was introduced.

Reporter Kim Jin-du reports on a new technology that shows energy when dealing with light.

[기자]

Black panels are densely lined up in the mountains.

It is a photovoltaic power generation facility that produces energy, but the problem of environmental damage is being raised.

A new solar cell has been developed that can solve this problem.

It is a transparent solar cell.

It allows more than 10% of the incoming light to pass through and power generation on both sides, increasing the efficiency up to 15%.

[신민정 / 에너지기술연구원 태양광연구단 : 빛을 양면으로 받을 수 있고 오는 태양 빛의 반사를 줄이고 넓게 퍼지게 하는 기능 층을 도입했습니다.]

Although it is lower than the current solar cell efficiency, which is about 23%, it is thin and has light-transmitting properties, so it can be used in various ways such as windows and automobiles.

[조준식 / 에너지기술연구원 태양광연구단 : 이번에 저희가 개발한 투명 태양전지는 전면으로 10%, 양면으로 15% 정도의 효율을 만들고 있습니다. 투광성을 가지면서도 이 정도의 효율을 나타내는 태양전지는 저희가 세계 최고 수준에 도달했다고….]

When a light is shining on a transparent film, the lighted area turns dark.

Applying the same technology to glass, it becomes a’smart window’ that darkens during the day and automatically brightens at night.

The researchers confirmed that when lithium ions were injected into the film and glass, they were transported by light and this property appeared.

[홍성준 / 에너지기술연구원 태양광연구단 : 짙어지는 시간은 3분 정도, 원상태로 돌아오는 데는 30분 정도를 달성하고 있습니다. 어떤 제품을 개발하느냐에 따라 원래로 돌아오는 시간은 결정될 것 같습니다.]

Glass windows and films that are sensitive to light cannot generate energy on their own.

However, it is expected to play a role in reducing cooling energy consumption as it has the effect of hitting the blinds in the summer and midday.

This is YTN Kim Jin-du.

[저작권자(c) YTN & YTN plus 무단전재 및 재배포 금지]