Influence of the atmospheric species water, oxygen, nitrogen and carbon dioxide on the degradation of aluminum doped zinc oxide layers

Theelen, Mirjam; Dasgupta, Supratik; Vroon, Zeger; Kniknie, B.; Barreau, Nicolas; Berkum, J. van; Zeman, Miro

doi:10.1016/j.tsf.2014.07.005

Cited by 20 publications

(20 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The etch products, presumably complexes of Zn(CO 3 ) 2 form spikes on the ZnO:Al surface. This was also suggested by other authors, who degraded ZnO:Al films in liqid water purged with CO 2 . However, low CO 2 levels did not have a major influence on degradation behavior.…”

Section: Resultssupporting

confidence: 83%

Influence of atmosphere and material properties on damp heat stability of ZnO:Al

Hüpkes

2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

We report on electrical properties and corrosion of ZnO:Al thin films on glass after damp heat treatments under various atmospheric conditions. The ZnO:Al films were prepared by in-line magnetron sputtering onto glass substrates. Damp heat treatments took place at 90 8C in various humid atmospheres including air, nitrogen, and mixtures of argon and carbon dioxide. Dry heat did not affect the properties of ZnO:Al films. Humidity, however, led to a significant increase in resistivity depending on preparation conditions of the ZnO:Al and the composition of the atmosphere. Additionally, humid CO 2 levels exceeding 5% significantly etched the ZnO:Al films with resistance increase by orders of magnitude. The only exception from degradation exhibited the damp heat stable ZnO:Al that had experienced the so-called highmobility annealing under the protective layer before degradation. This unique behavior was related to bulk properties of the ZnO:Al rather than a barrier effect at the film surface.

show abstract

Section: Resultssupporting

confidence: 83%

Influence of atmosphere and material properties on damp heat stability of ZnO:Al

Hüpkes

2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…Which particular element or molecule is responsible for the degradation is still under investigation. Though, CO 2 has been suggested as probable candidate to degrade ZnO:Al in the presence of water [26,27], a recent investigation disproved the influence of small fractions of CO 2 [28]. As already pointed out, similar processes are likely to be involved in the degradation of In 2 O 3 :H as well.…”

Section: Damp Heat Degradation Of In 2 O 3 :H Filmsmentioning

confidence: 97%

Reliability aspects of hydrogen‐doped indium oxide

Jost

Hamri

Köhler

et al. 2016

Physica Status Solidi (a)

View full text Add to dashboard Cite

We demonstrate an alternative route to reliably prepare hydrogen‐doped indium oxide (In2O3:H). The common hydrogen source, water vapor, was substituted in our process by hydrogen and oxygen gas. The resulting films showed similar optical and electrical properties. Nevertheless, the process using gaseous hydrogen led to a simplification of the deposition process. By replacing the hydrogen source we increased the reproducibility of the electrical film properties significantly, thus, paving the way for a reliable device implementation of the material. Furthermore, we investigated the degradation behavior of In2O3:H under damp heat conditions as preliminary test for long‐term durability in photovoltaic devices. The results revealed a degradation of the electrical properties that differs in detail regarding the amorphous and polycrystalline material. In the amorphous material, the main degradation is caused by loss of charge carriers, whereas in the polycrystalline material a drop of the charge carrier mobility causes a significant rise of the resistivity. However, we show that the relative degradation of the In2O3:H films is similar to other transparent contacts that are implemented in solar cells. Finally, we demonstrate that the degradation of the charge carrier mobility in the polycrystalline In2O3:H films is completely reversible by vacuum annealing at 200 °C.

show abstract

“…175 Unfortunately, many ZnO-based TCOs (neat and doped) have been associated with some limited chemical stability under damp heat conditions. [176][177][178][179][180] It has been evidenced that in a moist ambient atmosphere the electrical conductivity of ZnO degrades due to the formation of -OH groups and chemisorbed oxygen. 181 Tin-oxide (SnO x ) and zinc-tin-oxide (ZTO) are known for their elevated chemical stability compared to ZnO.…”

Section: Metal-oxide/metal/metal-oxide Sandwich Electrodesmentioning

confidence: 99%

Metal-nanostructures – a modern and powerful platform to create transparent electrodes for thin-film photovoltaics

Zilberberg

Riedl

2016

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Influence of the atmospheric species water, oxygen, nitrogen and carbon dioxide on the degradation of aluminum doped zinc oxide layers

Cited by 20 publications

References 11 publications

Influence of atmosphere and material properties on damp heat stability of ZnO:Al

Influence of atmosphere and material properties on damp heat stability of ZnO:Al

Reliability aspects of hydrogen‐doped indium oxide

Metal-nanostructures – a modern and powerful platform to create transparent electrodes for thin-film photovoltaics

Contact Info

Product

Resources

About