Si Hybrid Solar Cells with 13% Efficiency via Concurrent Improvement in Optical and Electrical Properties by Employing Graphene Quantum Dots

ACS Nano ◽  
2015 ◽  
Vol 10 (1) ◽  
pp. 815-821 ◽  
Author(s):  
Meng-Lin Tsai ◽  
Wan-Rou Wei ◽  
Libin Tang ◽  
Hung-Chih Chang ◽  
Shih-Hsiang Tai ◽  
...  
2015 ◽  
Vol 3 (4) ◽  
pp. 637-644 ◽  
Author(s):  
Yuancheng Qin ◽  
Yuanyuan Cheng ◽  
Longying Jiang ◽  
Xiao Jin ◽  
Mingjun Li ◽  
...  

2021 ◽  
pp. 100853
Author(s):  
G. Nagaraj ◽  
Mustafa K.A. Mohammed ◽  
Masoud Shekargoftar ◽  
P. Sasikumar ◽  
P. Sakthivel ◽  
...  

2013 ◽  
Vol 39 (3) ◽  
pp. 2975-2980 ◽  
Author(s):  
Chongyu Zhu ◽  
Xinhua Pan ◽  
Chunli Ye ◽  
Lei Wang ◽  
Zhizhen Ye ◽  
...  

2019 ◽  

Transparent conducting oxide (TCO) thin films are materials of significance for their applications in optoelectronics and sun powered cells. Fluorine-doped tin oxide (FTO) is an elective material in the advancement of TCO films. This paper reports the impact of fluorine doping on structural, optical and electrical properties of tin oxide thin films for solar cells application. The sol-gel was prepared from anhydrous stannous chloride, SnCl2 as an originator, 2-methoxyethanol as a solvent, di-ethanolamine as a preservative and ammonium fluoride as the dopant source. FTO precursor solution was formulated to obtain 0, 5, 10, 15 and 20 % doping concentration and deposited on glass substrates by means of spin coater at the rate of 2000 rpm for 40 seconds. After pre-heated at 200 oC, the samples were annealed at 600 oC for 2 h. The structural, optical and electrical characteristics of prepared films were characterized using X-ray diffraction (XRD) analysis, UV-visible spectroscopy and electrical measurement. X-ray diffraction (XRD) investigation of the films demonstrated that the films were polycrystalline in nature with tetragonal-cassiterite structure with most extraordinary pinnacle having a grain size of 17.01 nm. Doping with fluorine decreases the crystallite size. There was increment in the absorbance of the film with increasing wavelength and the transmittance was basically reduced with increasing fluorine doping in the visible region. The energy band gaps were in the range of 4.106-4.121 eV. The sheet resistance were observed to decrease as the doping percentage of fluorine increased with exception at higher doping of 15 and 20 %. In view of these outcomes, FTO thin films prepared could have useful application in transparent conducting oxide electrode in solar cell.


RSC Advances ◽  
2015 ◽  
Vol 5 (110) ◽  
pp. 90217-90225 ◽  
Author(s):  
Xun Zhou ◽  
Weili Meng ◽  
Chao Dong ◽  
Changwen Liu ◽  
Zeliang Qiu ◽  
...  

Cu2ZnSnS4 quantum dots are synthesized by a facile solvothermal technique and used as a novel effective acceptor material for polymer-based hybrid solar cells with a broad spectral response.


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