Next Article in Journal
On the Heat Transfer Enhancement of Plate Fin Heat Exchanger
Next Article in Special Issue
A GIS-Based Method for Identification of Wide Area Rooftop Suitability for Minimum Size PV Systems Using LiDAR Data and Photogrammetry
Previous Article in Journal
Optimal Configuration of Energy Storage System Coordinating Wind Turbine to Participate Power System Primary Frequency Regulation
Open AccessArticle

Efficient Planar Hybrid n-Si/PEDOT:PSS Solar Cells with Power Conversion Efficiency up to 13.31% Achieved by Controlling the SiOx Interlayer

1
Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory, School of Microelectronics, Xidian University, Xi’an 710071, China
2
School of Electronic Engineering and Automation, Guilin University of Electronic Technology, No. 1 Jinji Road, Guilin 541004, China
*
Authors to whom correspondence should be addressed.
Energies 2018, 11(6), 1397; https://doi.org/10.3390/en11061397
Received: 25 April 2018 / Revised: 15 May 2018 / Accepted: 21 May 2018 / Published: 30 May 2018
In this work, the effects of the SiOx interface layer grown by exposure in air on the performance of planar hybrid n-Si/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) solar cells are investigated. Compared to the cell with a hydrogen-terminated Si surface, the cell with an oxygen-terminated Si surface reveals improved characteristics in power conversion efficiency, increased from 10.44% to 13.31%. By introducing the SiOx, the wettability of the Si surface can be improved, allowing an effective spread of the PEDOT:PSS solution and thus a good contact between the PEDOT:PSS film and Si. More importantly, it can change the polarity of the Si surface from a negative dipole to a positive dipole, owing to the introduction of the SiOx interface. The Si energy band will bend up and give rise to a favorable band alignment between Si and PEDOT:PSS to promote carrier separation. These results could be potentially employed to further development of this simple, low-cost heterojunction solar cell. View Full-Text
Keywords: SiOx interface; n-Si/PEDOT:PSS solar cells; surface polarity SiOx interface; n-Si/PEDOT:PSS solar cells; surface polarity
Show Figures

Figure 1

MDPI and ACS Style

Zhang, C.; Zhang, Y.; Guo, H.; Jiang, Q.; Dong, P.; Zhang, C. Efficient Planar Hybrid n-Si/PEDOT:PSS Solar Cells with Power Conversion Efficiency up to 13.31% Achieved by Controlling the SiOx Interlayer. Energies 2018, 11, 1397.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop