Theoretical efficiency limits of ideal coloured opaque photovoltaics

2019 ◽  
Vol 12 (4) ◽  
pp. 1274-1285 ◽  
Author(s):  
Janne Halme ◽  
Pyry Mäkinen
Keyword(s):  
Solar Cells ◽  
Theoretical Analysis ◽  
Band Gap ◽  
Single Band ◽  
Ultimate Efficiency

Theoretical analysis connecting photovoltaics and colorimetry reveals the ultimate efficiency limits of colorful single-band-gap solar cells and modules.

scholarly journals Theoretical analysis of CZTS/CZTSSe tandem solar cells.

2021 ◽  
Author(s):  
Atul Kumar
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Theoretical Analysis ◽  
Band Gap ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Alternative Technique ◽  
Tandem Solar Cells ◽  
Bottom Cell

Abstract Kesterite CZTSxSe1−x has a band gap range from 1 to 1.5eV depending upon S/Se ration. The tandem of kieserite solar cell is proposed and simulated in SCAPS-1D for device configuration and analysis of the performance. CZTS of bandgap 1.5eV as top cell and CZTSSe of bandgap 1.1eV as bottom cell are stacked in tandem for the structure. The thickness of the two layer are optimized for matching the short circuit current JSC in the tandem. This study shines light on alternative technique of thin film multijunction for enhancing the efficiency of CZTSxSe1−x solar cells.

scholarly journals Routes to develop a [S]/([S]+[Se]) gradient in wide band-gap Cu2ZnGe(S,Se)4 thin-film solar cells

2021 ◽  
Vol 868 ◽  
pp. 159253
Author(s):  
Andrea Ruiz-Perona ◽  
Galina Gurieva ◽  
Michael Sun ◽  
Tim Kodalle ◽  
Yudania Sánchez ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Band Gap ◽  
Wide Band ◽  
Thin Film Solar Cells ◽  
Wide Band Gap

scholarly journals Electronic, Structural, and Optical Structure of Mono-Doped and Co-Doped (210) TiO2 Brookite Surfaces for Application in Dye-Sensitized Solar Cells—A First Principles Study

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3918
Author(s):  
Ratshilumela S. Dima ◽  
Lutendo Phuthu ◽  
Nnditshedzeni E. Maluta ◽  
Joseph K. Kirui ◽  
Rapela R. Maphanga
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Dye Sensitized Solar Cells ◽  
Visible Region ◽  
Electromagnetic Spectrum ◽  
Doped Tio2 ◽  
Dye Sensitized ◽  
Sensitized Solar Cells ◽  
Co Doped ◽  
Optical Structure

Titanium dioxide (TiO2) polymorphs have recently gained a lot of attention in dye-sensitized solar cells (DSSCs). The brookite polymorph, among other TiO2 polymorphs, is now becoming the focus of research in DSSC applications, despite the difficulties in obtaining it as a pure phase experimentally. The current theoretical study used different nonmetals (C, S and N) and (C-S, C-N and S-N) as dopants and co-dopants, respectively, to investigate the effects of mono-doping and co-doping on the electronic, structural, and optical structure properties of (210) TiO2 brookite surfaces, which is the most exposed surface of brookite. The results show that due to the narrowing of the band gap and the presence of impurity levels in the band gap, all mono-doped and co-doped TiO2 brookite (210) surfaces exhibit some redshift. In particular, the C-doped, and C-N co-doped TiO2 brookite (210) surfaces exhibit better absorption in the visible region of the electromagnetic spectrum in comparison to the pure, S-doped, N-doped, C-S co-doped and N-S co-doped TiO2 brookite (210) surfaces.

High-Efficiency Lead-Free Wide Band Gap Perovskite Solar Cells via Guanidinium Bromide Incorporation

2021 ◽  
Author(s):  
Mengmeng Chen ◽  
Muhammad Akmal Kamarudin ◽  
Ajay K. Baranwal ◽  
Gaurav Kapil ◽  
Teresa S. Ripolles ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Wide Band ◽  
Lead Free ◽  
Wide Band Gap

scholarly journals Tin-selenide as a futuristic material: properties and applications

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6477-6503 ◽  
Author(s):  
Manoj Kumar ◽  
Sanju Rani ◽  
Yogesh Singh ◽  
Kuldeep Singh Gour ◽  
Vidya Nand Singh
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Resistive Switching ◽  
Gas Sensors ◽  
Material Properties ◽  
Topological Insulators ◽  
Memory Devices ◽  
Tin Selenide ◽  
Switching Devices

SnSe/SnSe2 has diverse applications like solar cells, photodetectors, memory devices, Li and Na-ion batteries, gas sensors, photocatalysis, supercapacitors, topological insulators, resistive switching devices due to its optimal band gap.

scholarly journals Bandgap adjustment assisted preparation of >18% CsyFA1−yPbIxBr3−x-based perovskite solar cells using a hybrid spraying process

RSC Advances ◽  
2021 ◽  
Vol 11 (29) ◽  
pp. 17595-17602
Author(s):  
Shengquan Fu ◽  
Yueyue Xiao ◽  
Xinxin Yu ◽  
Tianxing Xiang ◽  
Fei Long ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Grain Morphology ◽  
Ultrasonic Spray ◽  
Spraying Process

High-efficiency perovskite solar cells with good grain morphology and adjustable band gap were prepared by ultrasonic spray.

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