Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > A giant leap to commercialization of polymer solar cell

This shows: (a) Device structures, (b) J−V characteristics, and (c) EQE of PTB7:PC70BM-based PSCs with type I and type II architectures.

Credit: UNIST
This shows: (a) Device structures, (b) J−V characteristics, and (c) EQE of PTB7:PC70BM-based PSCs with type I and type II architectures.

Credit: UNIST

Abstract:
A polymer solar cell is a type of thin film solar cells made with polymers that produce electricity from sunlight by the photovoltaic effect. Most current commercial solar cells are made from a highly purified silicon crystal. The high cost of these silicon solar cells and their complex production process has generated interest in developing alternative photovoltaic technologies.

A giant leap to commercialization of polymer solar cell

Ulsan, Republic of Korea | Posted on May 7th, 2013

Compared to silicon-based devices, PSCs are lightweight (which is important for small autonomous sensors), solution processability (potentially disposable), inexpensive to fabricate (sometimes using printed electronics), flexible, and customizable on the molecular level, and they have lower potential for negative environmental impact. Polymer solar cells have attracted a lot of interest due to these many advantages.

Although these many advantages, PSCs currently suffer from a lack of enough efficiency for large scale applications and stability problems but their promise of extremely cheap production and eventually high efficiency values has led them to be one of the most popular fields in solar cell research.

To maximize PCE, light absorption in the active layer has to be increased using thick bulk heterojunction (BHJ) films. However, the thickness of the active layer is limited by the low carrier mobilities of BHJ materials. Therefore, it is necessary to find the ways to minimize the thickness of BHJ films while maximizing the light absorption capability in the active layer.

The research team employed the surface plasmon resonance (SPR) effect via multi-positional silica-coated silver NPs to increase light absorption. The silica shell in preserves the SPR effect of the Ag NPs by preventing oxidation of the Ag core under ambient conditions and also eliminates the concern about exciton quenching by avoiding direct contact between Ag cores and the active layer. The multi-positional property refers to the ability of NPs to be introduced at both ITO/PEDOT:PSS (type I) and PEDOT:PSS/active layer (type II) interfaces in polymer: fullerene-based BHJ PSCs due to the silica shells.

Because PSCs have many advantages, including low cost, solution processability, and mechanical flexibility, PSCs can be adopted in various applications. However, we should break the efficiency barrier of 10% for commercialization of PSCs.

Jin Young Kim and Soojin Park, both, Associate Professors of the Interdisciplinary School of Green Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan, South Korea, led this work.

Prof. Kim said, "This is the first report introducing metal NPs between the hole transport layer and active layer for enhancing device performance. The multipositional and solutions-processable properties of our surface plasmon resonance (SPR) materials offer the possibility to use multiple plasmonic effects by introducing various metal nanoparticles into different spatial location for high-performance optoelectronic device via mass production techniques."

"Our work is meaningful to develop novel metal nanoparticles and almost reach 10% efficiency by using these materials. If we continuously focus on optimizing this work, commercialization of PSCs will be a realization but not dream," added Prof. Park.

This research was supported by WCU (World Class University) program through the Korea Science and Engineering Foundation funded the Ministry of Education, Science and Technology (Minister Lee Ju-Ho) and the National Research Foundation of Korea (President Seung Jong Lee). It has published in Nano Letters (Title: Multipositional Silica-Coated Silver Nanoparticles for High-Performance Polymer Solar Cells ).

####

For more information, please click here

Contacts:
Eunhee Song

Copyright © UNIST

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Ulsan National Institute of Science and Technology:

The original research article is available at:

Homepage of Prof. Jin Young Kim:

Homepage of Prof. Soojin Park:

Related News Press

News and information

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

The Translational Research Center at the University Hospital of Erlangen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles such as exosomes April 28th, 2016

Thin films

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

Thin-film solar cells: How defects appear and disappear in CIGSe cells: Concentration of copper plays a crucial role April 23rd, 2016

Making electronics out of coal: Instead of burning up this complex hydrocarbon, let's make devices from it April 20th, 2016

Atomically thin sensor detects harmful air pollution in the home April 18th, 2016

Govt.-Legislation/Regulation/Funding/Policy

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Nanoparticles hold promise as double-edged sword against genital herpes April 28th, 2016

Discoveries

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

Superfast light source made from artificial atom April 28th, 2016

Announcements

Cooling graphene-based film close to pilot-scale production April 30th, 2016

Personal cooling units on the horizon April 29th, 2016

Exploring phosphorene, a promising new material April 29th, 2016

The Translational Research Center at the University Hospital of Erlangen in Germany uses the ZetaView from Particle Metrix to quantify extracellular vesicles such as exosomes April 28th, 2016

Energy

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Researchers create artificial protein to control assembly of buckyballs April 27th, 2016

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

New spin Seebeck thermoelectric device with higher conversion efficiency created April 26th, 2016

Solar/Photovoltaic

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Flipping a chemical switch helps perovskite solar cells beat the heat April 26th, 2016

Manipulating light inside opaque layers April 24th, 2016

Thin-film solar cells: How defects appear and disappear in CIGSe cells: Concentration of copper plays a crucial role April 23rd, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic