scholarly journals Reducing lead toxicity in the methylammonium lead halide MAPbI3 : Why Sn substitution should be preferred to Pb vacancy for optimum solar cell efficiency

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
Pooja Basera ◽  
Manish Kumar ◽  
Shikha Saini ◽  
Saswata Bhattacharya
Keyword(s):  
Solar Cell ◽  
Lead Toxicity ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Lead Halide ◽  
Sn Substitution

Roughness and structural modification of PbI2 thin films by isopropanol treatment to improve methylammonium lead halide formation and solar cell efficiency

2019 ◽  
Vol 30 (18) ◽  
pp. 17491-17503 ◽  
Author(s):  
Paola M. Moreno-Romero ◽  
Asiel N. Corpus-Mendoza ◽  
Mario A. Millán-Franco ◽  
Carlos A. Rodríguez-Castañeda ◽  
D. Mateus Torres-Herrera ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cell ◽  
Structural Modification ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Lead Halide

Understanding the role of Sn substitution and Pb-□ in enhancing the optical properties and solar cell efficiency of CH(NH2)2Pb1−x−ySnx□yBr3

2020 ◽  
Vol 8 (30) ◽  
pp. 10362-10368
Author(s):  
Manjari Jain ◽  
Arunima Singh ◽  
Pooja Basera ◽  
Manish Kumar ◽  
Saswata Bhattacharya
Keyword(s):  
Optical Properties ◽  
Solar Cell ◽  
Lead Concentration ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Lead Bromide ◽  
The Stability ◽  
Sn Substitution

We study the role of Sn substitution and Pb vacancies in reducing the lead concentration and enhancing the stability and solar cell efficiency of promising formamidinium lead bromide perovskites.

Experimental and Theoretical Comparable Study of Pure and Zinc Porphyrin Surface Modified ZnO Nanorod Arrays for Hybrid Solar Cell Applications

2020 ◽  
pp. 114-119
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance ◽  
Hybrid Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Annealing Effects ◽  
Vertically Aligned ◽  
Surface Modified

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.

Solar cell efficiency tables (Version 58)

2021 ◽  
Author(s):  
Martin A. Green ◽  
Ewan D. Dunlop ◽  
Jochen Hohl‐Ebinger ◽  
Masahiro Yoshita ◽  
Nikos Kopidakis ◽  
...  
Keyword(s):  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

scholarly journals CdTe-Based Thin Film Solar Cells: Past, Present and Future

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1684
Author(s):  
Alessandro Romeo ◽  
Elisa Artegiani
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Early Years ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.

Optimizing solar cell efficiency with neural networks

2021 ◽  
Author(s):  
Garner H. Fleming ◽  
Bennett T. Smith ◽  
Matthew G. Dickman ◽  
J. Shawn Addington ◽  
David L. Livingston
Keyword(s):  
Neural Networks ◽  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency

RTP process effect on multicrystalline mc-Si wafers and its impact on solar cell efficiency

2020 ◽  
Author(s):  
Yacine Kouhlane ◽  
Djoudi Bouhafs ◽  
Abdelkader Guenda ◽  
Nacer-Eddine Demagh ◽  
Assia Guessoum ◽  
...  
Keyword(s):  
Solar Cell ◽  
Solar Cell Efficiency ◽  
Cell Efficiency
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