000877853 001__ 877853
000877853 005__ 20240712084520.0
000877853 0247_ $$2doi$$a10.1007/s10854-020-02944-4
000877853 0247_ $$2ISSN$$a0957-4522
000877853 0247_ $$2ISSN$$a1573-482X
000877853 0247_ $$2Handle$$a2128/26686
000877853 0247_ $$2WOS$$aWOS:000510371800002
000877853 037__ $$aFZJ-2020-02477
000877853 082__ $$a620
000877853 1001_ $$00000-0001-9094-6059$$aGüneş, Mehmet$$b0$$eCorresponding author
000877853 245__ $$aThe effects of air, oxygen and water exposure on the sub-bandgap absorption, the electronic conductivity and the ambipolar diffusion length in highly crystalline microcrystalline silicon films for photovoltaic applications
000877853 260__ $$aDordrecht [u.a.]$$bSpringer Science + Business Media B.V$$c2020
000877853 3367_ $$2DRIVER$$aarticle
000877853 3367_ $$2DataCite$$aOutput Types/Journal article
000877853 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1610214942_28620
000877853 3367_ $$2BibTeX$$aARTICLE
000877853 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000877853 3367_ $$00$$2EndNote$$aJournal Article
000877853 520__ $$aReversible and irreversible changes due to long term air and short term de-ionized water (DIW) or pure oxygen exposure were investigated in about 1 µm thick hydrogenated microcrystalline silicon (µc-Si:H) films deposited on rough glass substrates, thereby comparing highly crystalline with compact material. Time and temperature dependent dark conductivity, steady-state photoconductivity, the steady-state photocarrier grating and dual-beam photoconductivity methods have been used to study the effects. Standard measurement procedures defined previously have been carefully applied to record the changes after different treatments using the steady-state methods under light. After long term air exposure of highly crystalline µc-Si:H films, a thermal annealing step leads to an increase in dark conductivity (σD) and steady-state photoconductivity (σph) as well as to a significant increase in the sub-bandgap absorption. These effects are likely due to a reversible recovery from surface adsorbents in a porous microstructure after air exposure resulting in surface charge and Fermi level shifts in agreement with earlier results. Compact µc-Si:H films showed only marginal effects upon an annealing after long term air exposure suggesting much reduced susceptibility to surface adsorbent induced by Fermi level shifts. Five hours exposure to de-ionized water at 80 °C caused more than an order of magnitude increase in σD and σph and a substantial decrease in the sub-bandgap absorption spectrum in highly crystalline as well as in compact µc-Si:H films. In addition, minority carrier diffusion lengths measured by the steady-state photocarrier grating method improved significantly. The changes after exposure to water were not reversible upon our standard annealing procedure. Exposure to high purity oxygen gas at 150 °C resulted in similar effects like the exposure to DIW. Also here the changes in material properties were not reversible upon annealing. Results are discussed in terms of adsorption and chemical reactions on surfaces in the porous highly crystalline material versus the materials with more compact structures. Results are compared to earlier observations and consequences for device application will be indicated.
000877853 536__ $$0G:(DE-HGF)POF3-121$$a121 - Solar cells of the next generation (POF3-121)$$cPOF3-121$$fPOF III$$x0
000877853 588__ $$aDataset connected to CrossRef
000877853 7001_ $$0P:(DE-Juel1)130297$$aSmirnov, V.$$b1
000877853 7001_ $$0P:(DE-Juel1)130238$$aFinger, F.$$b2
000877853 7001_ $$0P:(DE-HGF)0$$aBrüggemann, R.$$b3
000877853 773__ $$0PERI:(DE-600)2016994-2$$a10.1007/s10854-020-02944-4$$gVol. 31, no. 5, p. 3960 - 3975$$n5$$p3960 - 3975$$tJournal of materials science / Materials in electronics$$v31$$x1573-482X$$y2020
000877853 8564_ $$uhttps://juser.fz-juelich.de/record/877853/files/G%C3%BCne%C5%9F2020_Article_TheEffectsOfAirOxygenAndWaterE.pdf$$yRestricted
000877853 8564_ $$uhttps://juser.fz-juelich.de/record/877853/files/Gunes%20et%20al.pdf$$yPublished on 2020-02-01. Available in OpenAccess from 2021-02-01.
000877853 8564_ $$uhttps://juser.fz-juelich.de/record/877853/files/G%C3%BCne%C5%9F2020_Article_TheEffectsOfAirOxygenAndWaterE.pdf?subformat=pdfa$$xpdfa$$yRestricted
000877853 8564_ $$uhttps://juser.fz-juelich.de/record/877853/files/Gunes%20et%20al.pdf?subformat=pdfa$$xpdfa$$yPublished on 2020-02-01. Available in OpenAccess from 2021-02-01.
000877853 909CO $$ooai:juser.fz-juelich.de:877853$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000877853 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130297$$aForschungszentrum Jülich$$b1$$kFZJ
000877853 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130238$$aForschungszentrum Jülich$$b2$$kFZJ
000877853 9131_ $$0G:(DE-HGF)POF3-121$$1G:(DE-HGF)POF3-120$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lErneuerbare Energien$$vSolar cells of the next generation$$x0
000877853 9141_ $$y2020
000877853 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)1230$$2StatID$$aDBCoverage$$bCurrent Contents - Electronics and Telecommunications Collection$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0530$$2StatID$$aEmbargoed OpenAccess
000877853 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bJ MATER SCI-MATER EL : 2018$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0110$$2StatID$$aWoS$$bScience Citation Index$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)3002$$2StatID$$aDEAL Springer$$d2020-02-27$$wger
000877853 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)1160$$2StatID$$aDBCoverage$$bCurrent Contents - Engineering, Computing and Technology$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0111$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2020-02-27
000877853 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz$$d2020-02-27$$wger
000877853 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2020-02-27
000877853 920__ $$lyes
000877853 9201_ $$0I:(DE-Juel1)IEK-5-20101013$$kIEK-5$$lPhotovoltaik$$x0
000877853 9801_ $$aFullTexts
000877853 980__ $$ajournal
000877853 980__ $$aVDB
000877853 980__ $$aUNRESTRICTED
000877853 980__ $$aI:(DE-Juel1)IEK-5-20101013
000877853 981__ $$aI:(DE-Juel1)IMD-3-20101013