Mesoporous BaSnO<sub>3</sub> layer based perovskite solar cells

Zhu, Luyao; Shao, Zhipeng; Ye, Jiajiu; Zhang, Xuhui; Pan, Xu; Dai, Songyuan

doi:10.1039/c5cc08156d

Cited by 141 publications

(84 citation statements)

References 38 publications

(37 reference statements)

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“…It is worth noting, however, that research efforts towards the development of one-dimensional organic semiconductors are being made through techniques such as solution-phase synthesis, templating, electrospinning, and nanolithography [65]. TiO 2 , ZnO, SnO 2 , and WO x are the most commonly used materials (energy level diagram shown in Figure 5) for 1D-ETLs, although other inorganic semiconductors exist that could potentially be used in a one-dimensional nanostructure, such as Zn 2 SnO 4 [66], BaSnO 3 [67], and SrTiO 3 [68]. While not a focus of this review, common organic electron transport materials include fullerenes, methanofullerenes, and perylene derivatives.…”

Section: Materials For One Dimensional Electron Transport Layersmentioning

confidence: 99%

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

2017

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The electron diffusion length (Ln) is smaller than the hole diffusion length (Lp) in many halide perovskite semiconductors meaning that the use of ordered one-dimensional (1D) structures such as nanowires (NWs) and nanotubes (NTs) as electron transport layers (ETLs) is a promising method of achieving high performance halide perovskite solar cells (HPSCs). ETLs consisting of oriented and aligned NWs and NTs offer the potential not merely for improved directional charge transport but also for the enhanced absorption of incoming light and thermodynamically efficient management of photogenerated carrier populations. The ordered architecture of NW/NT arrays affords superior infiltration of a deposited material making them ideal for use in HPSCs. Photoconversion efficiencies (PCEs) as high as 18% have been demonstrated for HPSCs using 1D ETLs. Despite the advantages of 1D ETLs, there are still challenges that need to be overcome to achieve even higher PCEs, such as better methods to eliminate or passivate surface traps, improved understanding of the hetero-interface and optimization of the morphology (i.e., length, diameter, and spacing of NWs/NTs). This review introduces the general considerations of ETLs for HPSCs, deposition techniques used, and the current research and challenges in the field of 1D ETLs for perovskite solar cells.

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Section: Materials For One Dimensional Electron Transport Layersmentioning

confidence: 99%

One-Dimensional Electron Transport Layers for Perovskite Solar Cells

2017

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“…Although these areas have great potential, there are only limited reports (129)(130)(131)(132)(133). We summarize recent research in the Supplemental Text.…”

Section: Solar Cells and Photoconductorsmentioning

confidence: 99%

Transparent Perovskite Barium Stannate with High Electron Mobility and Thermal Stability

Lee

Kim

Kang

et al. 2017

Annu. Rev. Mater. Res.

123

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Transparent conducting oxides (TCOs) and transparent oxide semiconductors (TOSs) have become necessary materials for a variety of applications in the information and energy technologies, ranging from transparent electrodes to active electronics components. Perovskite barium stannate (BaSnO 3 ), a new TCO or TOS system, is a potential platform for realizing optoelectronic devices and observing novel electronic quantum states due to its high electron mobility, excellent thermal stability, high transparency, structural versatility, and flexible doping controllability. This article reviews recent progress in the doped BaSnO 3 system, discussing the wide physical properties, electron-scattering mechanism, and demonstration of key semiconducting devices such as pn diodes and field-effect transistors. Moreover, we discuss the pathways to achieving two-dimensional electron gases at the interface between BaSnO 3 and other perovskite oxides and describe remaining challenges for observing novel quantum phenomena at the heterointerface. 17.1

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“…The performance of the PSC fabricated with these ETL materials are summarized in Table 1 BaSnO3 and SrTiO3 are transparent semiconducting perovskite oxides with the same perovskite structure as MAPbI3. Zhu et al [24] and Bera et al [25] explored BaSnO3 and SrTiO3 as the replacement of TiO2 in MPSCs, respectively. Both of them found that the alternative scaffold affected the crystal growth and morphology of perovskite.…”

Section: Methodsmentioning

confidence: 99%