Review on scanning probe microscopy analysis for perovskite materials and solar cells

Pathak, Chandra S.; Chang, Bong‐Jun; Song, Seulki

doi:10.1016/j.dyepig.2023.111469

Cited by 5 publications

(1 citation statement)

References 93 publications

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“…In view of the importance of surface topographies and conductivity variations of biomaterials on the adhesion, proliferation, and differentiation of nerve cells [29], C-AFM was carried out and the results are shown in Fig. 3 [30,31]. The surface currents ow on all the BC/PPy gradient conductive membranes increased with the increasing concentration gradient distribution of PPy from the up to down segments (Fig.…”

Section: C-afmmentioning

confidence: 99%

Highly aligned bacterial cellulose/PPy gradient conductive membranes for directed cell differentiation under electrical stimulation

Wang,

Qi,

Wang

et al. 2024

Preprint

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Both of the topographical and gradient conductive cues can influence the cellular activity and thereby tissue regeneration. However, they have not been combined simultaneously onto biomaterial with electrical stimulation to demonstrate the synergistic role so far. Herein, we assume that a bacterial cellulose (BC) -based membrane by incorporating aligned nanofibers and a concentration gradient of polypyrrole (PPy) with electrical stimulation treatment will promote cell differentiation in peripheral nerve regeneration. The results showed that PPy were successfully deposited on the aligned BC/PPy with gradient conductive structure, which exhibited good mechanical property, thermal stability, the gradient decrease in surface resistance, gradient increase in surface current from the up to down segments, as well as excellent biocompatibility. Especially, the membranes promoted the gradient proliferation and differentiation of PC12 cells in vitro. Importantly, combined with electric field (EF), the aligned BC/PPy gradient conductive membranes synergistically directed the differentiation of PC12 cells. The overall results suggest the aligned BC/PPy gradient conductive membranes with EF could be a promising therapeutic strategy to guide cellular activities for peripheral nerve regeneration.

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Section: C-afmmentioning

confidence: 99%

Highly aligned bacterial cellulose/PPy gradient conductive membranes for directed cell differentiation under electrical stimulation

Wang,

Qi,

Wang

et al. 2024

Preprint

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Advances in Spectro‐Microscopy Methods and their Applications in the Characterization of Perovskite Materials

Luo,

Wieghold,

Nienhaus

2024

Advanced Materials

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Perovskite materials are promising contenders as the active layer in light‐harvesting and light‐emitting applications if their long‐term stability can be sufficiently increased. Chemical and structural engineering are shown to enhance long‐term stability, but the increased complexity of the material system also leads to inhomogeneous functional properties across various length scales. Thus, scanning probe and high‐resolution microscopy characterization techniques are needed to reveal the role of local defects and the results promise to act as the foundation for future device improvements. A look at the parameter space: technique‐specific sample penetration depth versus probe size highlights a gap in current methods. High spatial resolution combined with a deep penetration depth is not yet achievable. However, multimodal measurement technique may be the key to covering this parameter space. In this perspective, current advanced spectro‐microscopy methods which have been applied to perovskite materials are highlighted.

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Mapping the photocurrent and photovoltage of hybrid perovskite thin films under concentrated sunlight

Pathak

2024

Macromol. Res.

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Review on scanning probe microscopy analysis for perovskite materials and solar cells

Cited by 5 publications

References 93 publications

Highly aligned bacterial cellulose/PPy gradient conductive membranes for directed cell differentiation under electrical stimulation

Highly aligned bacterial cellulose/PPy gradient conductive membranes for directed cell differentiation under electrical stimulation

Advances in Spectro‐Microscopy Methods and their Applications in the Characterization of Perovskite Materials

Mapping the photocurrent and photovoltage of hybrid perovskite thin films under concentrated sunlight

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