Improved photovoltaic response by incorporating green tea modified multiwalled carbon nanotubes in organic–inorganic hybrid solar cell

2014 ◽  
Vol 92 (7/8) ◽  
pp. 849-852 ◽  
Author(s):  
Ishwor Khatri ◽  
Qiming Liu ◽  
Ryo Ishikawa ◽  
Keiji Ueno ◽  
Hajime Shirai

In this work, multiwalled carbon nanotubes (MWCNTs) are separated and cut into short pipes using a green tea solution and embedded at interface of poly(3,4-ethylenedioxythiophene):poly(stylenesulfonate) (PEDOT:PSS)/n-Si hybrid solar cells. Devices fabricated with embedding green tea modified MWCNTs show much better performance (10.02%) than that of a device without MWCNTs (9.2%) due to better hole transportation, easy exciton splitting, and suppression of charge recombination.

2018 ◽  
Vol 929 ◽  
pp. 150-157
Author(s):  
Alfian Ferdiansyah Madsuha ◽  
Nofrijon Sofyan ◽  
Akhmad Herman Yuwono ◽  
Michael Krueger

In this work, the development of solution-processed bulk heterojunction hybrid solar cells based on CdSe quantum dot (QD) and conjugated polymer poly [2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta [2,1-b;3,4-b] dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)], PCPDTBT was performed. The photoactive layer was formed by integrating CdSe QDs onto multiwalled carbon nanotubes (CNTs). A simple method of thiol functionalization in the interface CNTs and CdSe QDs has been investigated. Integration of CNTs enhances long-term performance of solar cells devices. Initial PCE values of about 1.9 % under AM1.5G illumination have been achieved for this hybrid CNT-CdSe photovoltaic device. In addition, the long-term stability of the photovoltaic performance of the devices was investigated and found superior to CdSe QD only based devices. About 84 % of the initial PCE remained after storage in a glove box for one year without any further encapsulation. It is concluded that the improvement is mainly due to a strong binding between thiol functionalized CNTs and CdSe QDs, resulting preservation of the nanomorphology of the hybrid film over time.


2013 ◽  
Vol 102 (6) ◽  
pp. 063508 ◽  
Author(s):  
Ishwor Khatri ◽  
Zeguo Tang ◽  
Qiming Liu ◽  
Ryo Ishikawa ◽  
Keiji Ueno ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55071-55078 ◽  
Author(s):  
Zhichun Yang ◽  
Waqar Ahmad ◽  
Liang Chu ◽  
Majid Raissan Al-bahrani ◽  
Fanfan Tu ◽  
...  

A novel strategy of fast solvent induced assembly is used to synthesize a three-dimensional (3D) nanocomposite of multiwalled carbon nanotubes (MWCNTs) and TiO2, as the counter electrode (CE) of dye-sensitized solar cells (DSSCs).


Nano Letters ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 2496-2505 ◽  
Author(s):  
Xiaoli Zheng ◽  
Haining Chen ◽  
Qiang Li ◽  
Yinglong Yang ◽  
Zhanhua Wei ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Shaker Ebrahim ◽  
Moataz Soliman ◽  
M. Anas ◽  
Mostafa Hafez ◽  
Tarek M. Abdel-Fattah

Sign in / Sign up

Export Citation Format

Share Document