Social Support and Unemployment

Vrućinić, Žana

doi:10.5570/dfnd.en.1231.06

Cited by 2 publications

(3 citation statements)

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“…Theo bserved homogeneous distribution of local carrier lifetimes across the perovskite film in our wide-field-illuminated PL measurements contradicts the results of recent confocal PL studies. [25][26][27][28][29] To understand the origin of this discrepancy,w ea lso collected the confocal PL image (with the same excitation intensity as in the wide-field illumination measurements) on the same area in the perovskite film (Figure 3d). We also observed grain-to-grain PL intensity (Figure 3d)a nd lifetime (Figure 3e)v ariations (with clearly faster kinetics in dark grains than in bright grains), even though these grains exhibit similar PL lifetime in the widefield illumination measurement (Figure 3b).…”

Section: Angewandte Chemiementioning

confidence: 99%

“…[24] Recent imaging studies have reported that PL or cathodoluminescence intensity and decay kinetics varied greatly (< 10 ns to 100 sns) from grain to grain and from grain interior to boundaries even in large-grained and high performing perovskite thin films. [25][26][27][28][29] These spatial variations of PL decays are attributed to aheterogeneous distribution of defects,w hich induce fast non-radiative carrier recombination, [25,28,29] and grain boundaries are believed to be the major regions with higher defect densities. [25] In contrary,some other theoretical and experimental studies also suggested that grain boundaries have negligible or even beneficial impact on the performance of perovskite solar cells.…”

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confidence: 99%

“…[30,31] It has also been noted in confocal microscopy imaging measurements where the excitation laser is focused in ad iffraction limited spot (typically < 1 mm), the observed PL kinetics contains contribution of carrier diffusion out of the excitation/PL collection spot, which can influence the reliable determination of the spatial variation of intrinsic carrier lifetime. [23,32] Nevertheless, it is now widely believed that the morphological heterogeneity incurs deleterious local optoelectronic properties in perovskite films, [25][26][27][28][29]33] although the mechanism by which the morphology influence performance remains unclear. Thus, the ability to probe the effect of morphological heterogeneity on carrier lifetime and mobility and the consequent device performance is essential for the rational improvement of solar cell performance.…”

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confidence: 99%

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Limiting Perovskite Solar Cell Performance by Heterogeneous Carrier Extraction

et al. 2016

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Although the power conversion efficiency of perovskite solar cells has improved rapidly, a rational path for further improvement remains unclear. The effect of large morphological heterogeneity of polycrystalline perovskite films on their device performance by photoluminescence (PL) microscopy has now been studied. Contrary to the common belief on the deleterious effect of morphological heterogeneity on carrier lifetimes and diffusivities, in neat CH NH PbI (Cl) polycrystalline perovskite films, the local (intra-grain) carrier diffusivities in different grains are all surprisingly high (1.5 to 3.3 cm s ; comparable to bulk single-crystals), and the local carrier lifetimes are long (ca. 200 ns) and surprisingly homogenous among grains, and uniform across grain boundary and interior. However, there is a large heterogeneity of carrier extraction efficiency at the perovskite grain-electrode interface. Improving homogeneity at perovskite grain-electrode contacts is thus a promising direction for improving the performance of perovskite thin-film solar cells.

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Section: Angewandte Chemiementioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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Limiting Perovskite Solar Cell Performance by Heterogeneous Carrier Extraction

et al. 2016

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Üni̇versi̇te Mezunu Kadinlarin İşsi̇zli̇k Süreçleri̇ni̇n Değerlendi̇ri̇lmesi̇

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Erbay²

2018

Hacettepe Üniversitesi İktisadi Ve İdari Bilimler Fakültesi Dergisi

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Despite willingness to work, exclusion of women from working life due to unemployment is an important question in terms of ensuring social justice. In this respect, this study aims to evaluate in various aspects the unemployment processes of university graduate women by using quantitative research method. The results obtained by the research are important in terms of contributing to studies in order to increase women's participation in the working life, to increase the level of social welfare, and to ensure the social justice. The results show that women are unemployed due to their significant role in sexbased roles and responsibilities, that unemployment causes serious economic, social and psychological problems; that women seek jobs to gain economic independence, that social support networks have significant positive effects during unemployment period and that women may need support in various issues during the unemployment period. In this sense, it is evaluated that the process of unemployment should be considered from a holistic point of view, that a model should be established to evaluate the information that institutions have, that a cooperation between institutional support mechanisms should be developed, that institutional care services should be increased, and that it should be made easier to access to these services.

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Social Support and Unemployment

Cited by 2 publications

References 13 publications

Limiting Perovskite Solar Cell Performance by Heterogeneous Carrier Extraction

Limiting Perovskite Solar Cell Performance by Heterogeneous Carrier Extraction

Üni̇versi̇te Mezunu Kadinlarin İşsi̇zli̇k Süreçleri̇ni̇n Değerlendi̇ri̇lmesi̇

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