Dual use of tantalum disulfides as hole and electron extraction layers in organic photovoltaic cells
- Authors
- Le, Quyet Van; Nguyen, Thang Phan; Choi, Kyoung Soon; Cho, Yoon-Ho; Hong, Young Joon; Kim, Soo Young
- Issue Date
- Dec-2014
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.16, no.46, pp 25468 - 25472
- Pages
- 5
- Journal Title
- PHYSICAL CHEMISTRY CHEMICAL PHYSICS
- Volume
- 16
- Number
- 46
- Start Page
- 25468
- End Page
- 25472
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/13998
- DOI
- 10.1039/c4cp04412f
- ISSN
- 1463-9076
1463-9084
- Abstract
- UV/ozone treated (UVO-treated) TaS2 and non-treated TaS2 nanosheets are introduced into organic photovoltaic cells (OPVs) as hole extraction layers (HEL) and electron extraction layers (EEL). TaS2 nanosheets are obtained via ultrasonic vibration and size-controlled by centrifugation. Atomic force microscopy (AFM) images reveal that the thickness and lateral size of TaS2 nanosheets are approximately 1 and 70 nm, indicating that uniform and ultrathin TaS2 nanosheets are obtained. The work function of TaS2 increases from 4.4 eV to 4.9-5.1 eV after applying UVO treatment by forming Ta2O5. In addition, the power conversion efficiencies of normal OPV with UVO-treated TaS2 and inverted OPV with TaS2 are 3.06 and 2.73%, which are higher than those of OPV without TaS2 (1.56% for normal OPV and 0.22% for inverted OPV). These results indicate that TaS2 is a promising material for HEL and EEL layers in OPVs.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/13998)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.