Skip to main content

Ultra-thin organic solar cell with high conversion efficiency

An international research team announced has developed an "ultra-thin organic solar cell" that works well in high heat and high energy conversion efficiency. They say the newly developed device can be applied to clothing to harvest sunlight and directly to fill the gadget.

Researchers from Riken, Toray Industries Inc., the University of Tokyo, the Santa Barbara campus of the University of California, Waseda University, etc announced the development of solar cells that can be directly attached to clothing by using a hot-melted adhesive bonding process.

Tinuku Ultra-thin organic solar cell with high conversion efficiency

The thickness of ultra-thin organic solar cells developed today includes everything from substrate to 3μm sealing film. However the maximum energy conversion efficiency is only 10% and the element breaks even at 100C. Also, after being stored for 80 days in the atmosphere causes performance to deteriorate by 20%.

This time, the research group developed "PBDTTT-OFT" is a new semiconductor polymer featuring high energy conversion efficiency and high heat resistance. Its structure is similar to "PBDTTT-EFT or PTB7-Th" which has been widely used as organic solar cell material.

The team found that the chains made it possible to form films with high crystallinity and that the decrease in conductivity caused by heat was less than in the case of conventional materials.


Popular posts

Norwegian Coastal Administration prepare Stad Ship Tunnel construction to cut shipping lanes Stad peninsula

Tinuku ~ Norwegian Coastal Administration has begun Stad Ship Tunnel construction as the world's first ship tunnel to navigation bypass at Norway windy sea. A design made 1,700 meters long tunnel through the hills on the Stad peninsula which allows the ship to escape from one of the most dangerous region in the world.

PayPal acquired Sweden's for $2.2 billion

PayPal Holdings Inc. said on Thursday it had agreed to acquire Sweden's for US$2.2 billion. Startup headquartered in Stockholm is one of the most renowned financial technology companies in Europe where the deal will allow PayPal to expand the market globally and will mark the largest acquisitions ever made by a company based in San Jose, California.

iZettle offers a mini credit card device for small businesses that can turn smartphones and tablets into payment registers. The company has been present in 11 countries and offers other services for small businesses including loans. iZettle also has plans to go public.

The deal will also help PayPal provide a more comprehensive suite of services to its merchants, while PayPal that operates in the next 200 countries allows iZettle to accelerate its international expansion including the US. Similar services and major competitors in the US are Square Inc founded by Twitter CEO Jack Dorsey.

Since separating from eBay in 2015, P…

Foxconn unit to raise $4.2 billion IPO in Shanghai

Foxconn unit to collect US$4.2 billion in an IPO on the Shanghai stock exchange. Taiwan's Foxconn Industrial Internet as one of Foxconn's electronics manufacturing giant units that makes cloud services and industrial robot equipment will float 10% of total shares in an initial public offering in China on Thursday aiming to raise 27.1 billion yuan as China's biggest mainland debut for three year.

Taipei-based Foxconn, also known as Hon Hai Precision Industry Co. is the world's largest electronics contract manufacturer, a major supplier of components and assembler products by international brands including Apple and Sony. Foxconn Industrial Internet will launch 1.97 billion new shares at 13.77 yuan per share to raise 27.1 billion yuan (US$4.2 billion).

The IPO will be the largest in mainland China since 2015. Foxconn said it will use the funds raised to improve smart manufacturing, build an internet platform to connect factories, invest in cloud computing and fifth gener…