New organic solar cell offers high voltage to recharge a lithium-ion battery directly
October 12, 2012 // Paul Buckley
University of Warwick researchers in collaboration with spin-out company Molecular Solar, have created an organic solar cell that generates a sufficiently high voltage to recharge a lithium-ion battery directly, without the need to connect multiple individual cells in series.
Modules of the high voltage cells perform well in different light conditions including partial shade making them well matched to consumer electronic devices such as e-book readers, cameras and some mobile phones.
Organic photovoltaic (OPV) cells offer new opportunities thanks to the potential for cheap manufacture, lightweight, low profile photovoltaics compatible with flexible substrates, which means they are ideally matched to portable electronic device applications.
The new OPV technology is a breakthrough as scientists have addressed the problem of low out-put voltage when the module is in low light levels or partial shading taking an important step towards rolling out cheap OPV cells in low-power portable electronics.
The scientists, from the Universitys Department of Chemistry, have demonstrated a cell with an open circuit voltage of more than 7 V which delivers maximum power at more than the 4.2 V needed to power a standard lithium ion battery.
The scientists claim it is the first time these features have been demonstrated using ultra high voltage OPV cells.
Professor Tim Jones, one of the lead researchers at University of Warwick, along with Dr Ross Hatton and Professor Mike Shipman, said: We have taken a big step towards cheap-to-make solar chargers which can top up your devices whenever they are being used both indoors and out.
A small light-weight solar charger no bigger than a credit card can be fitted to the battery of an e-book reader for example, and constantly top it up with power while you are reading it - even if you are sitting inside on the sofa.All news
Plessey expands GaN-on-Si LED distribution network into Iberia
March 17, 2014
Plessey Semiconductors has entered into a distribution agreement with Matrix Electrónica S.L. for the Iberian market for ...
See a robot solve Rubik's Cube in 3s
Nissan, Renault combine engineering activities
Acoustic invisibility cloak tricks sound waves and sonars
Philips lighting JV focuses on Middle East expansion
MIMO test environment targets satellite RF links
March 17, 2014
During a multi-year study with the European Space Agency (ESA), Finnish electronics and software group Elektrobit (EB) has ...
Metallization innovation lowers solar module costs, boost efficiency
Reference design cuts costs of lithium e-bike batteries
The slope of the line is key to ESD protection
- DSM presents: Select the best plastic for DDR4
- Wireless Sensor Network Challenges and Solutions
- Putting FPGAs to Work in Software Radio Systems Handbook
- Real-Time Spectrum Analysis for Troubleshooting 802.11n/ac WLAN Devices
InterviewCEO Interview: Doluca preps Maxim for IoT era
Tunc Doluca, CEO of Maxim Integrated Products Inc. (Sunnyvale, Calif.) since Jan. 1, 2007, discusses his company's building block and application specific approach to the electronics market.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Freescale is giving away ten RIoTboards, worth 74 dollars each, for EETimes Europe's readers to win.
Designed to run Android operating systems efficiently or to run under Linux, the board is based on the Freescale i.MX 6Solo processor; using the ARM Cortex-A9 architecture.
And the winner is...
In our previous reader offer, Crystal Display was giving...Read more
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.