000907299 001__ 907299
000907299 005__ 20250821093108.0
000907299 0247_ $$2doi$$a10.1103/PRXEnergy.1.013003
000907299 0247_ $$2Handle$$a2128/31052
000907299 0247_ $$2altmetric$$aaltmetric:126114725
000907299 037__ $$aFZJ-2022-01950
000907299 082__ $$a530
000907299 1001_ $$0P:(DE-Juel1)180551$$aRavishankar, Sandheep$$b0$$eCorresponding author
000907299 245__ $$aMultilayer Capacitances: How Selective Contacts Affect Capacitance Measurements of Perovskite Solar Cells
000907299 260__ $$aCollege Park, MD$$bAmerican Physical Society$$c2022
000907299 3367_ $$2DRIVER$$aarticle
000907299 3367_ $$2DataCite$$aOutput Types/Journal article
000907299 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1650452287_9834
000907299 3367_ $$2BibTeX$$aARTICLE
000907299 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000907299 3367_ $$00$$2EndNote$$aJournal Article
000907299 520__ $$aCapacitance measurements as a function of voltage, frequency, and temperature are a useful tool to gain a deeper insight into the electronic properties of semiconductor devices in general and of solar cells in particular. Techniques such as capacitance-voltage, Mott-Schottky analysis, or thermal-admittance spectroscopy measurements are frequently employed in perovskite solar cells to obtain relevant parameters of the perovskite absorber. However, state-of-the-art perovskite solar cells use thin electron- and hole-transport layers to improve the contact selectivity. These contacts are often quite resistive in nature, which implies that their resistance will significantly contribute to the total device impedance and thereby also affect the overall capacitance of the device, thus partly obscuring the capacitance signal from the perovskite absorber. Based on this premise, we develop a simple multilayer model that considers the perovskite solar cell as a series connection of the geometric capacitance of each layer in parallel with their voltage-dependent resistances. Analysis of this model yields fundamental limits to the resolution of spatial doping profiles and minimum values of doping and trap densities, built-in voltages, and activation energies. We observe that most of the experimental capacitance-voltage-frequency-temperature data, calculated doping and defect densities, and activation energies reported in the literature are within the derived cutoff values, indicating that the capacitance response of the perovskite solar cell is indeed strongly affected by the capacitance of its selective contacts.
000907299 536__ $$0G:(DE-HGF)POF4-1215$$a1215 - Simulations, Theory, Optics, and Analytics (STOA) (POF4-121)$$cPOF4-121$$fPOF IV$$x0
000907299 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de
000907299 7001_ $$0P:(DE-Juel1)169264$$aLiu, Zhifa$$b1
000907299 7001_ $$0P:(DE-Juel1)143905$$aRau, Uwe$$b2$$ufzj
000907299 7001_ $$0P:(DE-Juel1)159457$$aKirchartz, Thomas$$b3
000907299 773__ $$0PERI:(DE-600)3105425-0$$a10.1103/PRXEnergy.1.013003$$gVol. 1, no. 1, p. 013003$$n1$$p013003$$tPRX energy$$v1$$y2022
000907299 8564_ $$uhttps://juser.fz-juelich.de/record/907299/files/ravishankar22prxenergy.pdf$$yOpenAccess
000907299 909CO $$ooai:juser.fz-juelich.de:907299$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000907299 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000907299 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0
000907299 9141_ $$y2022
000907299 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-HGF)0$$aForschungszentrum Jülich$$b0$$kFZJ
000907299 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)169264$$aForschungszentrum Jülich$$b1$$kFZJ
000907299 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)143905$$aForschungszentrum Jülich$$b2$$kFZJ
000907299 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)159457$$aForschungszentrum Jülich$$b3$$kFZJ
000907299 9131_ $$0G:(DE-HGF)POF4-121$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1215$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vPhotovoltaik und Windenergie$$x0
000907299 920__ $$lyes
000907299 9201_ $$0I:(DE-Juel1)IEK-5-20101013$$kIEK-5$$lPhotovoltaik$$x0
000907299 9801_ $$aFullTexts
000907299 980__ $$ajournal
000907299 980__ $$aVDB
000907299 980__ $$aUNRESTRICTED
000907299 980__ $$aI:(DE-Juel1)IEK-5-20101013
000907299 981__ $$aI:(DE-Juel1)IMD-3-20101013