Abstract
A simple device structure of bulk hetero-junction polymer solar cells (PSCs) with poly(3-hexylthiophene) and phenyl-C61-butyric acid methyl ester (P3HT:PCBM) is demonstrated without poly(3,4-ethylenedioxythiophene): poly(styrene-sulfonate) (PEDOT:PSS). Ultraviolet (UV)-ozone treatment alters the surface atomic compositions making it oxygen rich and carbon deficient. These chemical changes increase the workfunction of indium tin oxide (ITO) by 0.2 eV. The ITO anode with high workfunction results in efficient hole collection at ITO/P3HT interface. This method makes it possible to eliminate PEDOT:PSS with high efficiency of 3.35%, identical to the device with PEDOT:PSS (3.35%). In addition, the PSC with UV-ozone treated ITO anode shows 3.6 times longer life-time than that with PEDOT:PSS.
| Original language | English |
|---|---|
| Pages (from-to) | 240-245 |
| Number of pages | 6 |
| Journal | Solar Energy Materials and Solar Cells |
| Volume | 109 |
| DOIs | |
| Publication status | Published - 2013 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 7 Affordable and Clean Energy
Keywords
- Hole extraction layer
- Interface
- PEDOT:PSS
- Polymer solar cells
- UV-ozone
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Renewable Energy, Sustainability and the Environment
- Surfaces, Coatings and Films
Fingerprint
Dive into the research topics of 'Effect of ultraviolet-ozone on ITO/P3HT interface for PEDOT:PSS-free polymer solar cells'. Together they form a unique fingerprint.Cite this
- APA
- Standard
- Harvard
- Vancouver
- Author
- BIBTEX
- RIS