Facile and Low-Cost Sodium-Doping Method for High-Efficiency Cu2ZnSnSe4 Thin Film Solar Cells

2015 ◽  
Vol 119 (40) ◽  
pp. 22797-22802 ◽  
Author(s):  
Yanchun Yang ◽  
Xiaojiao Kang ◽  
Lijian Huang ◽  
Song Wei ◽  
Daocheng Pan
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Thin Film Solar Cells ◽  
Sodium Doping

scholarly journals Solution-Processed CdTe Thin-Film Solar Cells Using ZnSe Nanocrystal as a Buffer Layer

2018 ◽  
Vol 8 (7) ◽  
pp. 1195 ◽  
Author(s):  
Yanru Chen ◽  
Xianglin Mei ◽  
Xiaolin Liu ◽  
Bin Wu ◽  
Junfeng Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Buffer Layer ◽  
High Efficiency ◽  
Low Cost ◽  
Buffer Layers ◽  
Thin Film Solar Cells ◽  
Solution Processed ◽  
Cdte Nanocrystal ◽  
First Time

The CdTe nanocrystal (NC) is an outstanding, low-cost photovoltaic material for highly efficient solution-processed thin-film solar cells. Currently, most CdTe NC thin-film solar cells are based on CdSe, ZnO, or CdS buffer layers. In this study, a wide bandgap and Cd-free ZnSe NC is introduced for the first time as the buffer layer for all solution-processed CdTe/ZnSe NC hetero-junction thin-film solar cells with a configuration of ITO/ZnO/ZnSe/CdTe/MoOx/Au. The dependence of the thickness of the ZnSe NC film, the annealing temperature and the chemical treatment on the performance of NC solar cells are investigated and discussed in detail. We further develop a ligand-exchanging strategy that involves 1,2-ethanedithiol (EDT) during the fabrication of ZnSe NC film. An improved power conversion efficiency (PCE) of 3.58% is obtained, which is increased by 16.6% when compared to a device without the EDT treatment. We believe that using ZnSe NC as the buffer layer holds the potential for developing high-efficiency, low cost, and stable CdTe NC-based solar cells.

CdTe Thin-Film Solar Cells

MRS Bulletin ◽  
1993 ◽  
Vol 18 (10) ◽  
pp. 45-47 ◽  
Author(s):  
T. Suntola
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Cadmium Telluride ◽  
High Efficiency ◽  
Low Cost ◽  
Thick Layer ◽  
Thin Film Solar Cells ◽  
Cdte Thin Film ◽  
Large Area ◽  
Cell Structures

Cadmium telluride is currently the most promising material for high efficiency, low-cost thin-film solar cells. Cadmium telluride is a compound semiconductor with an ideal 1.45 eV bandgap for direct light-to-electricity conversion. The light absorption coefficient of CdTe is high enough to make a one-micrometer-thick layer of material absorb over 99% of the visible light. Processing homogenous polycrystalline thin films seems to be less critical for CdTe than for many other compound semiconductors. The best small-area CdTe thin-film cells manufactured show more than 15% conversion efficiency. Large-area modules with aperture efficiencies in excess of 10% have also been demonstrated. The long-term stability of CdTe solar cell structures is not known in detail or in the necessary time span. Indication of good stability has been demonstrated. One of the concerns about CdTe solar cells is the presence of cadmium which is an environmentally hazardous material.

scholarly journals Nanowires for High-Efficiency, Low-Cost Solar Photovoltaics

Crystals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 87 ◽  
Author(s):  
Yunyan Zhang ◽  
Huiyun Liu
Keyword(s):  
Thin Film ◽  
Energy Source ◽  
Solar Cells ◽  
Solar Cell ◽  
Solar Energy ◽  
High Efficiency ◽  
Low Cost ◽  
Thin Film Solar Cells ◽  
Solar Photovoltaics ◽  
The Cost

Solar energy is abundant, clean, and renewable, making it an ideal energy source. Solar cells are a good option to harvest this energy. However, it is difficult to balance the cost and efficiency of traditional thin-film solar cells, whereas nanowires (NW) are far superior in making high-efficiency low-cost solar cells. Therefore, the NW solar cell has attracted great attention in recent years and is developing rapidly. Here, we review the great advantages, recent breakthroughs, novel designs, and remaining challenges of NW solar cells. Special attention is given to (but not limited to) the popular semiconductor NWs for solar cells, in particular, Si, GaAs(P), and InP.

Cadmium-telluride—Material for thin film solar cells

1998 ◽  
Vol 13 (10) ◽  
pp. 2740-2753 ◽  
Author(s):  
Dieter Bonnet ◽  
Peter Meyers
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Throughput ◽  
High Efficiency ◽  
Low Cost ◽  
Chemical Properties ◽  
Base Material ◽  
Thin Film Solar Cells ◽  
Industrial Enterprises ◽  
Manufacturing Techniques

Due to its basic optical, electronic, and chemical properties, CdTe can become the base material for high-efficiency, low-cost thin film solar cells using robust, high-throughput manufacturing techniques. CdTe films suited for photovoltaic energy conversion have been produced by nine different processes. Using n-type CdS as a window-partner, solar cells of up to 16% efficiency have been made in the laboratory. Presently five industrial enterprises are striving to master low cost production processes and integrated modules have been delivered in sizes up to 60 × 120 cm2, showing efficiencies up to 9%. Stability, health, and environmental issues will not limit the commercial potential of the final product. The technology shows high promise for achieving cost levels of $0.5/Wp at 15% efficiency. In order to achieve this goal, scientists will have to develop a more detailed understanding of defect chemistry and device operation of cells, and engineers will have to develop methods for high-throughput manufacturing.

Research Progresses on High Efficiency Amorphous and Microcrystalline Silicon-Based Thin Film Solar Cells

2010 ◽  
Vol 1245 ◽  
Author(s):  
Xinhua Geng ◽  
Ying Zhao ◽  
Xiandan Zhang ◽  
Guofu Hou ◽  
Huizhi Ren ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Cell Structure ◽  
Thin Film Solar Cells ◽  
Chamber System ◽  
Large Area ◽  
Solar Module ◽  
Single Chamber

AbstractThis paper reviews our research progresses of hydrogenated amorphous silicon (a-Si:H) and microcrystalline (μc-Si:H) based thin film solar cells. It coves the three areas of high efficiency, low cost process, and large-area proto-type multi-chamber system design and solar module deposition. With an innovative VHF power profiling technique, we have effectively controlled the crystalline evolution and made uniform μc-Si:H materials along the growth direction, which was used as the intrinsic layers of pin solar cells. We attained a 9.36% efficiency with a μc-Si:H single-junction cell structure. We have successfully resolved the cross-contamination issue in a single-chamber system and demonstrated the feasibility of using single-chamber process for manufacturing. We designed and built a large-area multi-chamber VHF system, which is used for depositing a-Si:H/μc-Si:H micromorph tandem modules on 0.79-m2 glass substrates. Preliminary module efficiency has exceeded 8%.

Stable, high efficiency thin film solar cells produced by electrodeposition of cadmium telluride

1991 ◽  
Vol 23 (2-4) ◽  
pp. 388-393 ◽  
Author(s):  
A.K. Turner ◽  
J.M. Woodcock ◽  
M.E. Ozsan ◽  
J.G. Summers ◽  
J. Barker ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Cadmium Telluride ◽  
High Efficiency ◽  
Thin Film Solar Cells
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