Low-Cost CZTSSe Solar Cells Fabricated with Low Band Gap CZTSe Nanocrystals, Environmentally Friendly Binder, and Nonvacuum Processes

2014 ◽  
Vol 2 (4) ◽  
pp. 561-568 ◽  
Author(s):  
Chih-Liang Wang ◽  
Arumugam Manthiram
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Low Band Gap

scholarly journals Design and synthesis of low band gap non-fullerene acceptors for organic solar cells with impressively high Jsc over 21 mA cm_2

2017 ◽  
Vol 60 (9) ◽  
pp. 819-828 ◽  
Author(s):  
Huan-Huan Gao ◽  
Yanna Sun ◽  
Xiangjian Wan ◽  
Bin Kan ◽  
Xin Ke ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Low Band Gap ◽  
Design And Synthesis

High photovoltage achieved in low band gap polymer solar cells by adjusting energy levels of a polymer with the LUMOs of fullerene derivatives

2008 ◽  
Vol 18 (45) ◽  
pp. 5468 ◽  
Author(s):  
Fengling Zhang ◽  
Johan Bijleveld ◽  
Erik Perzon ◽  
Kristofer Tvingstedt ◽  
Sophie Barrau ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Low Band Gap ◽  
Fullerene Derivatives ◽  
Low Band Gap Polymer

Cd-Free Zn(O,S) as Alternative Buffer Layer for Chalcogenide and Kesterite Based Thin Films Solar Cells: A Review

2020 ◽  
Vol 20 (6) ◽  
pp. 3622-3635 ◽  
Author(s):  
Kuldeep S. Gour ◽  
Rahul Parmar ◽  
Rahul Kumar ◽  
Vidya N. Singh
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Band Gap ◽  
Buffer Layer ◽  
Low Cost ◽  
Incident Light ◽  
High Resistivity ◽  
Short Wavelength Range ◽  
Absorber Material

Cd is categorized as a toxic material with restricted use in electronics as there are inherent problems of treating waste and convincing consumers that it is properly sealed inside without any threat of precarious leaks. Apart from toxicity, band-gap of CdS is about 2.40–2.50 eV, which results significant photon loss in short-wavelength range which restricts the overall performance of solar cells. Thin film of Zn(O,S) is a favorable contender to substitute CdS thin film as buffer layer for CuInGaSe2 (CIGS), CuInGa(S,Se)2 (CIGSSe), Cu2ZnSn(S,Se)4 (CZTSSe) Cu2ZnSnSe4 (CZTSe), Cu2ZnSnS4 (CZTS) thin film absorber material based photovoltaic due to it made from earth abundant, low cost, non-toxic materials and its ability to improve the efficiency of chalcogenide and kesterite based photovoltaic due to wider band-gap which results in reduction of absorption loss compared to CdS. In this review, apart from mentioning various deposition technique for Zn(O,S) thin films, changes in various properties i.e., optical, morphological, and opto-electrical properties of Zn(O,S) thin film deposited using various methods utilized for fabricating solar cell based on CIGS, CIGSSe, CZTS, CZTSe and CZTSSe thin films, the material has been evaluated for all the properties of buffer layer (high transparency for incident light, good conduction band lineup with absorber material, low interface recombination, high resistivity and good device stability).

Fullerene (PCBM) Modulated MEH-PPV Photoactive Material for Plastic Solar Cells

2019 ◽  
Vol 969 ◽  
pp. 439-443
Author(s):  
Ishwar Naik ◽  
Rajashekhar Bhajantri ◽  
B.S. Patil ◽  
Vinayak Bhat
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Polymer Matrix ◽  
Low Cost ◽  
Spectral Response ◽  
Weight Ratio ◽  
Acid Methyl Ester ◽  
Research Problem ◽  
Energy Difference ◽  
Low Efficiency

Abstract.Plastic solar cells are promising devices in looking for low cost and flexible energy storing devices. Low efficiency is the main drawback of these cells in comparison with inorganic solar cells and hence the search for an efficient plastic solar cell has become a globally demanded research problem. In the present work we have used the modified fullerene [6,6]-Phenyl C61 butyric acid methyl ester (PCBM) as N type modulating probe on P type semiconducting polymer Poly[2-methoxy-5-(2’-ethylhexyloxy)-phenylenevinylene] (MEH-PPV). The donor MEH-PPV polymer matrix is modulated by adding PCBM in the weight ratio 1:3, 1:1 and 3:1 in Chloro-Benzene(CB) as the common solvent and glass-coated samples are prepared by solution cast method. Samples are analyzed by UV-VISIBLE spectroscopy by JASCO UV Vis NIR V 670 spectrometer. The effect of PCBM content on MEH-PPV is to broaden the spectral response of MEH-PPV. In other words the acceptor PCBM has tuned the band gap (energy difference between HOMO & LUMO) of the donor MEH-PPV. Spectral analysis revealed that 1:3 blend of MEH-PPV with PCBM has a wide spectral sensitivity for absorption. The band gap for each blend is determined using Tauc’s plot. Increased Fullerene content has decreased the band gap of the host polymer. We conclude that modified fullerene can effectively modulate the donor polymer matrix and 1:3 MEH-PPV: PCBM can act as a good photoactive material for solar cells. Absorption can be further enhanced by either dye sensitization or by metal oxide nanoparticle doping without increasing the thickness of the film. We have doped the optimized 1:3 blend with 20%, 40% & 60% of TiO2 nanoparticles wherein the absorption is enhanced with doping level. The increased absorption is attributed to the photocatalytic activity of the nanaoparticles embedded in the polymer matrix

Nanoscale crystallization of a low band gap polymer in printed titania mesopores

Nanoscale ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 4085-4093 ◽  
Author(s):  
Nian Li ◽  
Lin Song ◽  
Nuri Hohn ◽  
Nitin Saxena ◽  
Wei Cao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Crystal Orientation ◽  
Crystallization Behavior ◽  
Mesoporous Titania ◽  
Hybrid Solar Cells ◽  
Low Band Gap ◽  
Pore Sizes ◽  
Titania Films ◽  
Low Band Gap Polymer

The crystallization behavior of the low band gap polymer induced in printed mesoporous titania films with different pore sizes is studied to optimize the crystal orientation for an application in hybrid solar cells.

Highly crystalline, low band-gap semiconducting polymers based on phenanthrodithiophene-benzothiadiazole for solar cells and transistors

2016 ◽  
Vol 7 (8) ◽  
pp. 1549-1558 ◽  
Author(s):  
Hiroki Mori ◽  
Hikaru Nonobe ◽  
Yasushi Nishihara
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Hole Mobility ◽  
Semiconducting Polymers ◽  
Low Band Gap ◽  
Crystalline Films

Newly developed PDT-benzothiadiazole copolymers formed highly-crystalline films in a highly ordered edge-on manner. As a result, fabricated solar cells and transistor devices showed a moderate PCE of ∼3.8% and a high hole mobility of up to 0.18 cm2 V−1 s−1.

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