Advanced

Optimizing ZnO nanoparticle surface for bulk heterojunction hybrid solar cells

Shao, Shuyan; Zheng, Kaibo LU ; Zidek, Karel LU ; Chabera, Pavel LU ; Pullerits, Tönu LU and Zhang, Fengling (2013) In Solar Energy Materials and Solar Cells 118. p.43-47
Abstract
The performance of hybrid solar cells composed of polymer and ZnO is mainly hindered by the defects of ZnO. Here, we investigate the effects of ZnO nanoparticle surface modification with poly(ethylene oxide) (PEO) on the performance of bulk heterojunction hybrid solar cells based on poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) and ZnO nanoparticles. The reference device using ZnO nanoparticles as electron acceptor shows an open-circuit voltage (V-OC) of 0.83 V, a short-circuit current J(SC)) of 3.00 mA/cm(2), a fill factor (FF) of 0.46 and a power conversion efficiency (PCE) of 1.15%. After modification with very small amount of PEO, the PCE will be enhanced, which is attributed to less surface traps of ZnO... (More)
The performance of hybrid solar cells composed of polymer and ZnO is mainly hindered by the defects of ZnO. Here, we investigate the effects of ZnO nanoparticle surface modification with poly(ethylene oxide) (PEO) on the performance of bulk heterojunction hybrid solar cells based on poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) and ZnO nanoparticles. The reference device using ZnO nanoparticles as electron acceptor shows an open-circuit voltage (V-OC) of 0.83 V, a short-circuit current J(SC)) of 3.00 mA/cm(2), a fill factor (FF) of 0.46 and a power conversion efficiency (PCE) of 1.15%. After modification with very small amount of PEO, the PCE will be enhanced, which is attributed to less surface traps of ZnO nanoparticles with PEO modification. With optimized PEO (0.05%) modified ZnO nanoparticles as electron acceptors, the device typically shows a V-OC of 0.86 V, a J(SC) of 3.84 mA/cm(2), a FF of 0.51 and a PCE of 1.68% due to less recombination loss of carriers, smaller series resistance, and improved electrical coupling between ZnO nanoparticle and MEH-PPV. However, further increase of PEO content to 0.3% will deteriorate device performance. (C) 2013 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hybrid solar cells, Surface modification, Trap, ZnO
in
Solar Energy Materials and Solar Cells
volume
118
pages
43 - 47
publisher
Elsevier
external identifiers
  • wos:000325905000007
  • scopus:84883385605
ISSN
0927-0248
DOI
10.1016/j.solmat.2013.07.046
language
English
LU publication?
yes
id
01f7be49-c996-4458-9034-dd095e89de1b (old id 4158040)
date added to LUP
2013-12-04 13:27:28
date last changed
2019-04-02 02:18:40
@article{01f7be49-c996-4458-9034-dd095e89de1b,
  abstract     = {The performance of hybrid solar cells composed of polymer and ZnO is mainly hindered by the defects of ZnO. Here, we investigate the effects of ZnO nanoparticle surface modification with poly(ethylene oxide) (PEO) on the performance of bulk heterojunction hybrid solar cells based on poly[2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) and ZnO nanoparticles. The reference device using ZnO nanoparticles as electron acceptor shows an open-circuit voltage (V-OC) of 0.83 V, a short-circuit current J(SC)) of 3.00 mA/cm(2), a fill factor (FF) of 0.46 and a power conversion efficiency (PCE) of 1.15%. After modification with very small amount of PEO, the PCE will be enhanced, which is attributed to less surface traps of ZnO nanoparticles with PEO modification. With optimized PEO (0.05%) modified ZnO nanoparticles as electron acceptors, the device typically shows a V-OC of 0.86 V, a J(SC) of 3.84 mA/cm(2), a FF of 0.51 and a PCE of 1.68% due to less recombination loss of carriers, smaller series resistance, and improved electrical coupling between ZnO nanoparticle and MEH-PPV. However, further increase of PEO content to 0.3% will deteriorate device performance. (C) 2013 Elsevier B.V. All rights reserved.},
  author       = {Shao, Shuyan and Zheng, Kaibo and Zidek, Karel and Chabera, Pavel and Pullerits, Tönu and Zhang, Fengling},
  issn         = {0927-0248},
  keyword      = {Hybrid solar cells,Surface modification,Trap,ZnO},
  language     = {eng},
  pages        = {43--47},
  publisher    = {Elsevier},
  series       = {Solar Energy Materials and Solar Cells},
  title        = {Optimizing ZnO nanoparticle surface for bulk heterojunction hybrid solar cells},
  url          = {http://dx.doi.org/10.1016/j.solmat.2013.07.046},
  volume       = {118},
  year         = {2013},
}