News / Science & Technology

Study: Solar Panels Rock Out to Pop Music

Lady Gaga performs on stage at the Roundhouse in Camden, north London, as part of the iTunes Festival, Sept 1, 2013, the first of 30 nights of live free music in the capital.
Lady Gaga performs on stage at the Roundhouse in Camden, north London, as part of the iTunes Festival, Sept 1, 2013, the first of 30 nights of live free music in the capital.

Related Articles

Nigeria Pioneers Clean Fuels for Domestic Use

Nigerians experiment with simple and high technologies to meet increasing demands for light and fuel
VOA News
Pop stars Justin Bieber and Lady Gaga can get an arena full of teens rocking, but scientists say pop music can also cause vibrations in solar cells that increase their efficiency by up to 40 percent.

Scientists at Queen Mary University of London and Imperial College London say the high frequencies and pitch found in pop and rock music work better than classical music.

The researchers grew billions of tiny rods, or nanorods, made from zinc oxide, then covered them with an active polymer to form a device that converts sunlight into electricity.

Using the properties of the zinc oxide material, the team was able to show that sound levels as low as 75 decibels - equivalent to a typical roadside noise or a printer in an office - could significantly improve the solar cell performance.

Scientists had previously shown that applying pressure or strain to zinc oxide materials could result in higher voltage outputs, known as the piezoelectric effect. However, the effect of these piezoelectric voltages on solar cell efficiency had not received significant attention before.

"We thought the soundwaves, which produce random fluctuations, would cancel each other out and so didn't expect to see any significant overall effect on the power output," said James Durrant, Professor of Photochemistry at Imperial College London, who co-led the study.

"The key for us was that not only that the random fluctuations from the sound didn’t cancel each other out, but also that some frequencies of sound seemed really to amplify the solar cell output - so that the increase in power was a remarkably big effect considering how little sound energy we put in," he added.

Practical uses for this discovery could include solar powered air conditioning units, laptop computers or electronic components on buses, trains and other vehicles.

You May Like

British Fighters On Frontline of ISIS Information War

It’s estimated that several hundred British citizens are fighting for Islamic State alongside other foreign Jihadists More

Audio Hit Song Delivers Ebola Message in Liberia

'Ebola in Town' has danceable beat, while also delivering serious message about avoiding infection More

Video New Technology Gives Surgeons Unprecedented Views of Patients’ Bodies

Technology offers real-time, interactive, medical visualization and is multi-dimensional More

This forum has been closed.
Comment Sorting
Comments
     
by: Kitagawa Keikoh from: Daikanyama
November 09, 2013 6:44 PM
Some vibrations increase the efficiency of the solar panels ?
It means just inputting some energy in order to get some output increase.
Does it make sense from the view point of the law of the conservation of energy?

Featured Videos

Your JavaScript is turned off or you have an old version of Adobe's Flash Player. Get the latest Flash player.
Native Bees May Help Save Cropsi
X
Deborah Block
August 22, 2014 12:23 AM
U.S. President Barack Obama has called for a federal strategy to promote the health of bees that have been declining. The honeybee has been waning due to parasites, disease and pesticides. Wild bees may be used to take over their role as crop pollinators. Scientists first need to learn a lot more about wild bees, says biologist Sam Droege, who is pioneering the first national inventory on native bees. VOA’s Deborah Block went to his research laboratory in Beltsville, Maryland, to bring you more.
Video

Video Native Bees May Help Save Crops

U.S. President Barack Obama has called for a federal strategy to promote the health of bees that have been declining. The honeybee has been waning due to parasites, disease and pesticides. Wild bees may be used to take over their role as crop pollinators. Scientists first need to learn a lot more about wild bees, says biologist Sam Droege, who is pioneering the first national inventory on native bees. VOA’s Deborah Block went to his research laboratory in Beltsville, Maryland, to bring you more.
Video

Video US Defense Officials Plan for Long-Term Strategy to Contain Islamic State

U.S. defense officials say American air strikes in Iraq have helped deter Islamic State militants for the time being, but that a broad international effort is needed to defeat the extremists permanently. Defense Secretary Chuck Hagel warned Thursday that the group formerly known as the Islamic State in Iraq and the Levant, or ISIL, is better organized, and financially and militarily stronger than any other known terrorist group. Zlatica Hoke has more.
Video

Video Drug-Resistant Malaria Spreads in Southeast Asia

On Thailand’s border with Myanmar, also known as Burma, a malaria research and treatment clinic is stepping up efforts to eliminate a drug-resistant form of the parasite - before it spreads abroad. Steve Sandford reports from Mae Sot, Thailand.
Video

Video Gaza Conflict, Hamas Popularity Challenge Abbas

The Palestinian unity government of Mahmoud Abbas has failed to convince Hamas to agree to Egyptian-negotiated terms with Israel on a Gaza cease-fire. VOA State Department Correspondent Scott Stearns reports on what the Gaza conflict means for President Abbas, with whom U.S. officials have worked for years on a two-state solution to the Israeli-Palestinian conflict.
Video

Video Nigeria's 'Nollywood' Movie Industry Rolls in High Gear

Twenty years after its birth in a video shop in Lagos, Nigeria's "Nollywood" is one of the most prolific film industries on earth. Despite low budgets and whirlwind production schedules, Nigerian films are wildly popular in Africa and industry professionals say they hope, in the future, their films will be as great in quality as they are in quantity. Heather Murdock has more for VOA from Lagos.
Video

Video UN Launches 'Biggest Aid Operation in 30 Years' in Iraq

The United Nations has launched what it describes as one of the biggest aid operations in 30 years in northern Iraq, as hundreds of thousands of refugees flee the extremist Sunni militant group calling itself the Islamic State. As Kurdish and Iraqi forces battle the Sunni insurgents, the fighting has forced more people to flee their homes. Kurdish authorities say the international community must act now to avert a humanitarian catastrophe. Henry Ridgwell reports for VOA from London.
Video

Video Cambodian American Hip Hop Artist Sings of Personal Struggles

A growing underground movement of Cambodian American hip hop artists is rapping about the struggles of living in urban America. Most, if not all of them, are refugees or children of refugees who came to the United States from Cambodia to escape the Khmer Rouge genocide of the 1970s. Through their music, the artists hope to give voice to immigrants who have been struggling quietly for years. Elizabeth Lee reports from Long Beach, California.
Video

Video African Media Tries to Educate Public About Ebola

While the Ebola epidemic continues to claim lives in West Africa, information technology specialists, together with radio and TV reporters, are battling misinformation and prejudice about the disease - using social media to educate the public about the deadly virus. VOA’s George Putic has more.

AppleAndroid