A Facile Process for Partial Ag Substitution in Kesterite Cu2ZnSn(S,Se)4 Solar Cells Enabling a Device Efficiency of over 12%

2021 ◽  
Vol 13 (3) ◽  
pp. 3959-3968
Author(s):  
Myeng Gil Gang ◽  
Vijay C. Karade ◽  
Mahesh P. Suryawanshi ◽  
Hyesun Yoo ◽  
Mingrui He ◽  
...  
Keyword(s):  
Solar Cells ◽  
Device Efficiency ◽  
Ag Substitution

Role of Surface Band Gap Widening in Cu(In, Ga)(Se, S)2 Thin-Films for the Photovoltaic Performance of ZnO/CdS/Cu(In, Ga)(Se, S)2 Heterojunction Solar Cells

2003 ◽  
Vol 763 ◽  
Author(s):  
U. Rau ◽  
M. Turcu
Keyword(s):  
Thin Films ◽  
Surface Layer ◽  
Solar Cells ◽  
Fermi Level ◽  
Band Gap ◽  
Photovoltaic Performance ◽  
Heterojunction Solar Cells ◽  
Fermi Level Pinning ◽  
Device Efficiency

AbstractNumerical simulations are used to investigate the role of the Cu-poor surface defect layer on Cu(In, Ga)Se2 thin-films for the photovoltaic performance of ZnO/CdS/Cu(In, Ga)Se2 heterojunction solar cells. We model the surface layer either as a material which is n-type doped, or as a material which is type-inverted due to Fermi-level pinning by donor-like defects at the interface with CdS. We further assume a band gap widening of this layer with respect to the Cu(In, Ga)Se2 bulk. This feature turns out to represent the key quality of the Cu(In, Ga)Se2 surface as it prevents recombination at the absorber/CdS buffer interface. Whether the type inversion results from n-type doping or from Fermi-level pinning is only of minor importance as long as the surface layer does not imply a too large number of excess defects in its bulk or at its interface with the normal absorber. With increasing number of those defects an n-type layer proofs to be less sensitive to material deterioration when compared to the type-inversion by Fermi-level pinning. For wide gap chalcopyrite solar cells the internal valence band offset between the surface layer and the chalcopyrite appears equally vital for the device efficiency. However, the unfavorable band-offsets of the ZnO/CdS/Cu(In, Ga)Se2 heterojunction limit the device efficiency because of the deterioration of the fill factor.

scholarly journals Facile integration of low-cost black phosphorus in solution-processed organic solar cells with improved fill factor and device efficiency

Nano Energy ◽  
2018 ◽  
Vol 53 ◽  
pp. 345-353 ◽  
Author(s):  
Yun Zhao ◽  
Teresa L. Chen ◽  
Liangang Xiao ◽  
Matthew A. Kolaczkowski ◽  
Liang Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Low Cost ◽  
Black Phosphorus ◽  
Solution Processed ◽  
Device Efficiency

scholarly journals RESEARCH HIGHLIGHTS: Perovskites

MRS Bulletin ◽  
2020 ◽  
Vol 45 (1) ◽  
pp. 11-12
Author(s):  
Prachi Patel ◽  
Pabitra K. Nayak
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Commercial Products ◽  
Commercial Success ◽  
Device Efficiency

Perovskite solar cells are at the edge of commercial success. Device efficiency records break at a regular pace, while stability and optimization are progressing rapidly. The first commercial products could reach the market within the next year, only a decade since perovskite photovoltaics were first discovered. MRS Bulletin presents coverage of the most recent impactful advances in the burgeoning field of perovskite research.

Effect of a Submicrometric Periodical Patterning of Photovoltaic Solar Cells on the Device Efficiency

2005 ◽  
Author(s):  
L. Rocha ◽  
C. Cocoyer ◽  
L. Sicot ◽  
B. Geffroy ◽  
R. de Bettignies ◽  
...  
Keyword(s):  
Solar Cells ◽  
Device Efficiency ◽  
Photovoltaic Solar Cells

Enhancing Open-Circuit Voltage of Solution-Processed Cu2ZnSn(S,Se)4 Solar Cells With Ag Substitution

2017 ◽  
Vol 7 (3) ◽  
pp. 874-881 ◽  
Author(s):  
Yun Zhao ◽  
Xiuxun Han ◽  
Bin Xu ◽  
Wen Li ◽  
Jian Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Solution Processed ◽  
Ag Substitution

scholarly journals RESEARCH HIGHLIGHTS: Perovskites

MRS Bulletin ◽  
2020 ◽  
Vol 45 (4) ◽  
pp. 253-254
Author(s):  
Prachi Patel ◽  
Pabitra K. Nayak
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Commercial Products ◽  
Commercial Success ◽  
Device Efficiency

Perovskite solar cells are at the edge of commercial success. Device efficiency records are being broken at a regular pace, while stability and optimization are progressing rapidly. The first commercial products could reach the market within a year. MRS Bulletin presents coverage of the most recent impactful advances in the burgeoning field of perovskite research.

A small-molecule/fullerene acceptor alloy: a powerful tool to enhance the device efficiency and thermal stability of ternary polymer solar cells

2020 ◽  
Vol 8 (32) ◽  
pp. 11223-11238 ◽  
Author(s):  
Pan Yin ◽  
Linqiao Wang ◽  
Jingtang Liang ◽  
Yufu Yu ◽  
Li Chen ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Small Molecule ◽  
Polymer Solar Cells ◽  
Device Efficiency ◽  
Ternary Polymer ◽  
Thermal Stability Of

A small-molecule/fullerene acceptor alloy improved the PCE and stability of PBDB-T/PC71BM/IDT-OT ternary PSCs.

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