Sunlight-activated graphene-heterostructure transparent cathodes: enabling high-performance n-graphene/p-Si Schottky junction photovoltaics

2015 ◽  
Vol 8 (7) ◽  
pp. 2085-2092 ◽  
Author(s):  
Po-Hsun Ho ◽  
Wei-Chen Lee ◽  
Yi-Ting Liou ◽  
Ya-Ping Chiu ◽  
Yi-Siang Shih ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Performance ◽  
High Efficiency ◽  
Schottky Junction ◽  
Junction Solar Cell

A record-high efficiency (>10%) was achieved for an n-graphene/p-Si Schottky junction solar cell by using the “sunlight-activated” graphene/TiOx transparent cathode.

scholarly journals Complex Investigation of High Efficiency and Reliable Heterojunction Solar Cell Based on an Improved Cu2O Absorber Layer

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4667
Author(s):  
Laurentiu Fara ◽  
Irinela Chilibon ◽  
Ørnulf Nordseth ◽  
Dan Craciunescu ◽  
Dan Savastru ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Reliability Analysis ◽  
High Performance ◽  
High Efficiency ◽  
Absorber Layer ◽  
Heterojunction Solar Cell ◽  
Complex Investigation ◽  
Heterojunction Solar Cells ◽  
Conduction Band Offset

This study is aimed at increasing the performance and reliability of silicon-based heterojunction solar cells with advanced methods. This is achieved by a numerical electro-optical modeling and reliability analysis for such solar cells correlated with experimental analysis of the Cu2O absorber layer. It yields the optimization of a silicon tandem heterojunction solar cell based on a ZnO/Cu2O subcell and a c-Si bottom subcell using electro-optical numerical modeling. The buffer layer affinity and mobility together with a low conduction band offset for the heterojunction are discussed, as well as spectral properties of the device model. Experimental research of N-doped Cu2O thin films was dedicated to two main activities: (1) fabrication of specific samples by DC magnetron sputtering and (2) detailed characterization of the analyzed samples. This last investigation was based on advanced techniques: morphological (scanning electron microscopy—SEM and atomic force microscopy—AFM), structural (X-ray diffraction—XRD), and optical (spectroscopic ellipsometry—SE and Fourier-transform infrared spectroscopy—FTIR). This approach qualified the heterojunction solar cell based on cuprous oxide with nitrogen as an attractive candidate for high-performance solar devices. A reliability analysis based on Weibull statistical distribution establishes the degradation degree and failure rate of the studied solar cells under stress and under standard conditions.

A study on the 2D simulation of Pt/InGaN/GaN/metal Schottky junction solar cell

2013 ◽  
Vol 28 (5) ◽  
pp. 055012 ◽  
Author(s):  
Pramila Mahala ◽  
Sanjay Kumar Behura ◽  
Aniruddha Singh Kushwaha ◽  
Abhijit Ray ◽  
Omkar Jani ◽  
...  
Keyword(s):  
Solar Cell ◽  
Schottky Junction ◽  
Junction Solar Cell ◽  
2D Simulation

Electronic Junction Control in a Nanotube-Semiconductor Schottky Junction Solar Cell

Nano Letters ◽  
2010 ◽  
Vol 10 (12) ◽  
pp. 5001-5005 ◽  
Author(s):  
Pooja Wadhwa ◽  
Bo Liu ◽  
Mitchell A. McCarthy ◽  
Zhuangchun Wu ◽  
Andrew G. Rinzler
Keyword(s):  
Solar Cell ◽  
Schottky Junction ◽  
Junction Solar Cell

Thermal test and simulation of alumina receiver with high efficiency multi-junction solar cell for concentrator systems

2010 ◽  
Author(s):  
Simon Chow ◽  
Christopher E. Valdivia ◽  
Jeffrey F. Wheeldon ◽  
Richard Ares ◽  
Osvaldo Jesus Arenas ◽  
...  
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Thermal Test ◽  
Junction Solar Cell

A Study of Back Electrode Stacked With Low Cost Reflective Layers For High-Efficiency Thin-Film Silicon Solar Cell

2014 ◽  
Vol 136 (3) ◽  
Author(s):  
Tsung-Wei Chang ◽  
Chao-Te Liu ◽  
Wen-Hsi Lee ◽  
Yu-Jen Hsiao
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
High Performance ◽  
Silicon Solar Cell ◽  
High Efficiency ◽  
Low Cost ◽  
Visible Region ◽  
Particle Diameter ◽  
Solid Content ◽  
Thin Film Silicon

In this study, commercially available white paint is used as a pigmented dielectric reflector (PDR) in the fabrication of a low-cost back electrode stack with an Al-doped ZnO (AZO) layer for thin-film silicon solar cell applications. An initial AZO film was deposited by the radio-frequency magnetron sputtering method. In order to obtain the highest transmittance and lowest resistivity of AZO film, process parameters such as sputtering power and substrate temperature were investigated. The optimal 100-nm-thick AZO film with low resistivity and high transmittance in the visible region are 6.4 × 10−3 Ω·cm and above 80%, respectively. Using glue-like white paint doped withTiO2 nanoparticles as the PDR enhances the external quantum efficiency (EQE) of a microcrystalline silicon absorptive layer owing to the doped white particles improving Fabry–Pérot interference (FPI), which raises reflectance and scattering ability. To realize the cost down requirement, decreasing the noble metal film thickness such as a 30-nm-thick silver reflector film, and a small doping particle diameter (D50 = 135 nm) and a high solid content (20%) lead to FPI improvement and a great EQE, which is attributed to improved scattering and reflectivity because of optimum diameter (Dopt) and thicker PDR film. The results indicate that white paint can be used as a reflector coating in low-cost back-electrode structures in high-performance electronics.

InP/Si High Efficiency Heterojunction-Junction Solar Cell Design Using PSO and the GA Algorithms

2020 ◽  
Vol 15 (3) ◽  
pp. 245
Author(s):  
Kamal Attari ◽  
Lahcen Amhaimar ◽  
Ali El Yaakoubi ◽  
Adel Asselman
Keyword(s):  
Solar Cell ◽  
High Efficiency ◽  
Cell Design ◽  
Junction Solar Cell
Sign in / Sign up

Export Citation Format

Share Document