Impedance spectroscopy analysis on the effects of TiO2 interfacial atomic layers in ZnO nanorod polymer solar cells: Effects of interfacial charge extraction on diffusion and recombination

Jin, Mi‐Jin; Jo, Junhyeon; Yoo, Jae Cheal

doi:10.1016/j.orgel.2015.01.030

Cited by 31 publications

(12 citation statements)

References 62 publications

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“…x [561,683,[735][736][737][738][739][740][741][742][743]; [384,646,744]; [384,646,651,741,[745][746][747][748][749][750][751][752][753][754][755][756][757][758][759][760][761];…”

Section: Alkoxidesunclassified

Titanium dioxide thin films by atomic layer deposition: a review

Niemelä

Marín

Karppinen

2017

Semicond. Sci. Technol.

145

116

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Within its rich phase diagram titanium dioxide is a truly multifunctional material with a property palette that has been shown to span from dielectric to transparent-conducting characteristics, in addition to the well-known catalytic properties. At the same time down-scaling of microelectronic devices has led to an explosive growth in research on atomic layer deposition (ALD) of a wide variety of frontier thin-film materials, among which TiO2 is one of the most popular ones. In this topical review we summarize the advances in research of ALD of titanium dioxide starting from the chemistries of the over 50 different deposition routes developed for TiO2 and the resultant structural characteristics of the films. We then continue with the doped ALD-TiO2 thin films from the perspective of dielectric, transparent-conductor and photocatalytic applications. Moreover, in order to cov er the lat est tr ends in t he research f ield, both the var iously constr ucted TiO2 nanostructures enabled by ALD and the Ti-based hybrid inorganic-organic films grown by the emerging ALD/MLD (combined atomic/molecular layer deposition) technique are discussed.

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“…x [561,683,[735][736][737][738][739][740][741][742][743]; [384,646,744]; [384,646,651,741,[745][746][747][748][749][750][751][752][753][754][755][756][757][758][759][760][761];…”

Section: Alkoxidesunclassified

Titanium dioxide thin films by atomic layer deposition: a review

Niemelä

Marín

Karppinen

2017

Semicond. Sci. Technol.

145

116

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“…The Cole–Cole plots are widely used to extrapolate the recombination resistance ( R rec ) through the low-frequency arc. 67–72 While some of the studies related the decrease in R rec to the enhanced charge transport, 69,72 some of the articles reversely related the increase in R rec to the reduced disadvantageous charge recombination at the interface 70 or binary photoactive layer structure. 68 Assuming the equivalent circuit as a series component of each component consisting of parallel resistance and capacitance units, Cole–Cole plots were measured, varying the frequency from 100 Hz to 50 MHz.…”

Section: Resultsmentioning

confidence: 99%

Study on graphene oxide as a hole extraction layer for stable organic solar cells

et al. 2021

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“…To analyze the impedance data, we used a standard equivalent circuit model. [22][23][24][25][26][27][28] We took the sum of all resistive elements to represent an estimate for the composite resistance of the CuI films. The Nyquist plots of CuI films before and after solvent treatment can be found in Figure S4.…”

Section: Resultsmentioning

confidence: 99%

Deleterious Effects of Halides and Solvents on the Integrity of Copper Iodide Hole Extraction Layers in Hybrid Perovskite Photovoltaics

Smith

Venkataraman

2021

Preprint

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Copper iodide (CuI) is a promising material for use as a hole transport layer in perovskite solar cells due to its optical transparency, low-cost fabrication, and efficient electronic (hole) conductivity. Various reports of perovskite solar cells that utilize CuI have shown impressive solar cell performance and improved device stability. Despite these observations, we found no clear experimental evidence that the CuI hole transport layer is retained in perovskite p-i-n solar cells after device fabrication. Using powder X-ray diffraction (PXRD), UV-vis spectroscopy, and impedance spectroscopy, we studied how each of the components present in the precursor solution for fabricating the perovskite active layer impacts the integrity of CuI films. Based on these data, we establish the deleterious effects of halide ions and solvents such as dimethyl sulfoxide (DMSO). We also show that we can fabricate stable CuI material in situ during perovskite deposition by taking advantage of a known redox chemistry of Cu(II)/Cu(I) and halides.

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Impedance spectroscopy analysis on the effects of TiO2 interfacial atomic layers in ZnO nanorod polymer solar cells: Effects of interfacial charge extraction on diffusion and recombination

Cited by 31 publications

References 62 publications

Titanium dioxide thin films by atomic layer deposition: a review

Titanium dioxide thin films by atomic layer deposition: a review

Study on graphene oxide as a hole extraction layer for stable organic solar cells

Deleterious Effects of Halides and Solvents on the Integrity of Copper Iodide Hole Extraction Layers in Hybrid Perovskite Photovoltaics

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