Impact of Precursor Compositions on the Structural and Photovoltaic Properties of Spray-Deposited Cu2 ZnSnS4 Thin Films

ChemSusChem ◽  
2016 ◽  
Vol 9 (17) ◽  
pp. 2414-2420 ◽  
Author(s):  
Thi Hiep Nguyen ◽  
Shotaro Fujikawa ◽  
Takashi Harada ◽  
Jakapan Chantana ◽  
Takashi Minemoto ◽  
...  
1986 ◽  
Vol 139 (3) ◽  
pp. 221-231 ◽  
Author(s):  
S. Glenis ◽  
G. Tourillon ◽  
F. Garnier

2006 ◽  
Vol 965 ◽  
Author(s):  
Seunghyup Yoo ◽  
William J Potscavage ◽  
Benoit Domercq ◽  
Sung-Ho Han ◽  
Dean Levi ◽  
...  

ABSTRACTWe report on the photovoltaic properties of organic solar cells based on pentacene and C60 thin films. A peak external quantum efficiency (EQE) of 69 % at a wavelength of λ = 668 nm is achieved upon optimization of the exciton blocking layer (EBL) thickness. Complex optical functions of pentacene films are measured as a function of wavelength by spectroscopic ellipsometry and used to analyze the EQE spectra. Detailed analysis of the EQE spectra indicate that the pentacene layers exhibit large excitonic diffusion lengths of ∼70 nm and that the performance improvement in EQE can be attributed to the influence of the thickness of the EBL layer on the carrier collection efficiency.


CrystEngComm ◽  
2018 ◽  
Vol 20 (38) ◽  
pp. 5735-5743 ◽  
Author(s):  
Ofir Friedman ◽  
Omri Moschovitz ◽  
Yuval Golan

Chemically graded Cd(S,Se) thin film and photovoltaic cell illustration.


2021 ◽  
Vol 851 ◽  
pp. 156833
Author(s):  
Shujie Sun ◽  
Wenyan Wang ◽  
Jianqiao Chen ◽  
Zhenyu Xiao ◽  
Nian Cheng ◽  
...  

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 962 ◽  
Author(s):  
Zahoor Ul Islam ◽  
Muhammad Tahir ◽  
Waqar Adil Syed ◽  
Fakhra Aziz ◽  
Fazal Wahab ◽  
...  

Herein, we report thin films’ characterizations and photovoltaic properties of an organic semiconductor zinc phthalocyanine (ZnPc). To study the former, a 100 nm thick film of ZnPc is thermally deposited on quartz glass by using vacuum thermal evaporator at 1.5 × 10−6 mbar. Surface features of the ZnPc film are studied by using scanning electron microscope (SEM) with in situ energy dispersive x-ray spectroscopy (EDS) analysis and atomic force microscope (AFM) which reveal uniform film growth, grain sizes and shapes with slight random distribution of the grains. Ultraviolet-visible (UV-vis) and Fourier Transform Infrared (FTIR) spectroscopies are carried out of the ZnPc thin films to measure its optical bandgap (1.55 eV and 3.08 eV) as well as to study chemical composition and bond-dynamics. To explore photovoltaic properties of ZnPc, an Ag/ZnPc/PEDOT:PSS/ITO cell is fabricated by spin coating a 20 nm thick film of hole transport layer (HTL)—poly-(3,4-ethylenedioxythiophene) poly(styrene sulfonic acid) (PEDOT:PSS)—on indium tin oxide (ITO) substrate followed by thermal evaporation of a 100 nm layer of ZnPc and 50 nm silver (Ag) electrode. Current-voltage (I-V) properties of the fabricated device are measured in dark as well as under illumination at standard testing conditions (STC), i.e., 300 K, 100 mW/cm2 and 1.5 AM global by using solar simulator. The key device parameters such as ideality factor (n), barrier height ( ϕ b ), junction/interfacial resistance (Rs) and forward current rectification of the device are measured in the dark which exhibit the formation of depletion region. The Ag/ZnPc/PEDOT:PSS/ITO device demonstrates good photovoltaic characteristics by offering 0.48 fill factor (FF) and 1.28 ± 0.05% power conversion efficiency (PCE), η.


2018 ◽  
Vol 757 ◽  
pp. 124-133 ◽  
Author(s):  
S.S. Fouad ◽  
I.M. El Radaf ◽  
Pankaj Sharma ◽  
M.S. El-Bana

2018 ◽  
Vol 50 (3) ◽  
pp. 346-353 ◽  
Author(s):  
R. David Prabu ◽  
S. Valanarasu ◽  
V. Ganesh ◽  
Mohd Shkir ◽  
S. AlFaify ◽  
...  

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