First Principles Calculations of Bonding and Charges at the Al2Interface in a c-Si/SiO2O3Interface in a c-Si/SiO2/am-Al2O3Structure Applicable for the Surface Passivation of Silicon-Based Solar Cells

2016 ◽  
Vol 63 (2) ◽  
pp. 544-550 ◽  
Author(s):  
Akansha Bansal ◽  
Himani Mishra ◽  
Sitangshu Bhattacharya ◽  
Babu Ram Singh
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
Surface Passivation ◽  
First Principles Calculations ◽  
Silicon Based

scholarly journals First-Principles Study on the Stabilities, Electronic and Optical Properties of GexSn1-xSe Alloys

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 876 ◽  
Author(s):  
Qi Qian ◽  
Lei Peng ◽  
Yu Cui ◽  
Liping Sun ◽  
Jinyan Du ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Band Gap ◽  
Electronic Properties ◽  
First Principles ◽  
Future Application ◽  
First Principles Calculations ◽  
Electronic And Optical Properties ◽  
Direct Bandgap ◽  
The Future

We systematically study, by using first-principles calculations, stabilities, electronic properties, and optical properties of GexSn1-xSe alloy made of SnSe and GeSe monolayers with different Ge concentrations x = 0.0, 0.25, 0.5, 0.75, and 1.0. Our results show that the critical solubility temperature of the alloy is around 580 K. With the increase of Ge concentration, band gap of the alloy increases nonlinearly and ranges from 0.92 to 1.13 eV at the PBE level and 1.39 to 1.59 eV at the HSE06 level. When the Ge concentration x is more than 0.5, the alloy changes into a direct bandgap semiconductor; the band gap ranges from 1.06 to 1.13 eV at the PBE level and 1.50 to 1.59 eV at the HSE06 level, which falls within the range of the optimum band gap for solar cells. Further optical calculations verify that, through alloying, the optical properties can be improved by subtle controlling the compositions. Since GexSn1-xSe alloys with different compositions have been successfully fabricated in experiments, we hope these insights will contribute to the future application in optoelectronics.

Halide perovskite materials for solar cells: a theoretical review

2015 ◽  
Vol 3 (17) ◽  
pp. 8926-8942 ◽  
Author(s):  
Wan-Jian Yin ◽  
Ji-Hui Yang ◽  
Joongoo Kang ◽  
Yanfa Yan ◽  
Su-Huai Wei
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
Perovskite Solar Cells ◽  
First Principles Calculations ◽  
Perovskite Materials ◽  
Halide Perovskite

First-principles calculations help to understand the fundamental mechanisms of the emerging perovskite solar cells and guide further developments.

Band alignment and charge transfer predictions of ZnO/ZnX (X = S, Se or Te) interfaces applied to solar cells: a PBE+U theoretical study

2018 ◽  
Vol 20 (7) ◽  
pp. 4953-4961 ◽  
Author(s):  
Efracio Mamani Flores ◽  
Rogério Almeida Gouvea ◽  
Maurício Jeomar Piotrowski ◽  
Mário Lucio Moreira
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
First Principles ◽  
Theoretical Study ◽  
Band Alignment ◽  
First Principles Calculations

We performed first-principles calculations within PBE and PBE+U approximations to study ZnO and ZnX bulk systems and ZnO/ZnX interfaces (X = S, Se or Te), to the better comprehension of charge transference through the interface.

Wavelength-dependent optical transition mechanisms for light-harvesting of perovskite MAPbI3 solar cells using first-principles calculations

2016 ◽  
Vol 4 (23) ◽  
pp. 5248-5254 ◽  
Author(s):  
Hsin-An Chen ◽  
Ming-Hsien Lee ◽  
Chun-Wei Chen
Keyword(s):  
Solar Cells ◽  
Solid State ◽  
High Power ◽  
First Principles ◽  
Light Harvesting ◽  
Optical Transition ◽  
Power Conversion ◽  
First Principles Calculations ◽  
Inorganic Perovskite ◽  
Conversion Efficiencies

The recently emerging class of solid-state hybrid organic–inorganic perovskite-based solar cells has demonstrated remarkably high power conversion efficiencies of up to ∼20%.

scholarly journals Assessing the roles of Cu- and Ag-deficient layers in chalcopyrite-based solar cells through first principles calculations

2020 ◽  
Vol 127 (6) ◽  
pp. 065303 ◽  
Author(s):  
Abhishek Sharan ◽  
Fernando P. Sabino ◽  
Anderson Janotti ◽  
Nicolas Gaillard ◽  
Tadashi Ogitsu ◽  
...  
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
First Principles Calculations

First-Principles Calculations for the Interfaces of Perovskite Solar Cells

2021 ◽  
pp. 95-158
Author(s):  
Jun-Peng An ◽  
Ying Tian ◽  
Hong-Tao Xue ◽  
Jun-Chen Li ◽  
Jun-Qiang Ren ◽  
...  
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
Perovskite Solar Cells ◽  
First Principles Calculations

Theoretical investigations on crystal crosslinking in perovskite solar cells

2018 ◽  
Vol 6 (2) ◽  
pp. 234-241 ◽  
Author(s):  
Lei Zhang ◽  
Lei Xu ◽  
Fengxi Yu ◽  
Jingfa Li
Keyword(s):  
Solar Cells ◽  
First Principles ◽  
Perovskite Solar Cells ◽  
First Principles Calculations ◽  
Theoretical Investigations ◽  
Perovskite Crystal ◽  
Halide Perovskite ◽  
Crosslinking Agents

The mechanisms of halide perovskite crystal crosslinking via molecular crosslinking agents are proposed using first principles calculations.

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