2018
DOI: 10.1002/solr.201800254
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Effects of Ammonia‐Induced Surface Modification of Cu(In,Ga)Se2 on High‐Efficiency Zn(O,S)‐Based Cu(In,Ga)Se2 Solar Cells

Abstract: Post‐treatment of Cu(In,Ga)Se2 (CIGS) surfaces, as an efficient way to improve the performance of CIGS solar cells, has received increasing attention in recent years. To alleviate the limitations of the as‐grown CIGS thin films, such as oxidation, Na accumulation, and microstructure of CIGS surface, ammonia (NH3) etching solution was introduced to post‐treat the CIGS surface to improve its quality in this study. To investigate the mechanisms of NH3 etching effects on the CIGS surfaces and the resulted devices,… Show more

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Cited by 31 publications
(30 citation statements)
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“…Figure 4b–e demonstrates the evolution behaviors of the selected peaks of Ga, In, Ag, and Cu elements by Ag on the surface of the CIGS film. [ 42 ] Although there is no significant difference in binding energy for all elements, the intensity of the selected peaks has an obvious difference.…”
Section: Resultsmentioning
confidence: 99%
“…Figure 4b–e demonstrates the evolution behaviors of the selected peaks of Ga, In, Ag, and Cu elements by Ag on the surface of the CIGS film. [ 42 ] Although there is no significant difference in binding energy for all elements, the intensity of the selected peaks has an obvious difference.…”
Section: Resultsmentioning
confidence: 99%
“…Depending on the technology of CIGS thin‐film solar cells, they may include CdS film or Zn(O,S) film as the buffer layer . In this work, Zn(O,S) was used as the buffer layer, and the corresponding structure is shown in Figure a as glass/Mo (≈1 μm)/CIGS (≈2.5 μm)/Zn(O,S) (≈30 nm)/TCO (ZnMgO/Al:ZnO) (≈600 nm).…”
Section: Methodsmentioning
confidence: 99%
“…The Zn(O,S) buffer layers were deposited by chemical bath deposition method. More details can be found in previous works . For modules, three scribing steps were introduced in this work, namely, after deposition of Mo for P1, of ZnMgO for P2, and of Al:ZnO for P3.…”
Section: Methodsmentioning
confidence: 99%
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“…The superior performance of CIGS cells obtained with buffers deposited by CBD has been ascribed to the formation of buried p–n junctions, resulting from the enhanced diffusivity of the ions in the liquid phase . This is supported by the fact that postannealing treatments of the complete solar cells can lead to further performance enhancements, even with CBD‐grown ZnS and Zn(O,S) buffers …”
mentioning
confidence: 98%