Abstract
Perovskite-based solar cells are generally assembled as planar structures comprising a flat organoammonium metal halide perovskite layer, or mesoscopic structures employing a mesoporous metal-oxide scaffold into which the perovskite material is infiltrated. To present, little attention has been directed toward the texturing of the perovskite material itself. Herein, a textured CH3NH3PbI3 morphology formed through a thin mesoporous TiO2 seeding layer and a gas-assisted crystallization method is reported. The textured morphology comprises a multitiered nanostructure, which allows for significant improvements in the light harvesting and charge extraction performance of the solar cells. Due to these improvements, average short-circuit current densities for a batch of 28 devices are in excess of 22 mA cm-2, and the maximum recorded power conversion efficiency is 16.3%. The performance gains concomitant with this textured CH3NH3PbI3 morphology provide further insights into how control of the perovskite microstructure can be used to enhance the cell performance. A textured CH3NH3PbI3 morphology for perovskite-based solar cells is presented. The textured morphology exhibits enhanced light harvesting and charge separation properties. The highest measured power conversion efficiency is 16.3%.
| Original language | English |
|---|---|
| Pages (from-to) | 1278-1285 |
| Number of pages | 8 |
| Journal | Advanced Functional Materials |
| Volume | 26 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 23 Feb 2016 |
Keywords
- gas-assisted crystallization method
- perovskite solar cell
- textured morphology
Cite this
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Enhancing the Optoelectronic Performance of Perovskite Solar Cells via a Textured CH3NH3PbI3 Morphology. / Pascoe, Alexander R.; Meyer, Steffen; Huang, Wenchao; Li, Wei; Benesperi, Iacopo; Duffy, Noel W.; Spiccia, Leone; Bach, Udo; Cheng, Yi-Bing.
In: Advanced Functional Materials, Vol. 26, No. 8, 23.02.2016, p. 1278-1285.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Enhancing the Optoelectronic Performance of Perovskite Solar Cells via a Textured CH3NH3PbI3 Morphology
AU - Pascoe, Alexander R.
AU - Meyer, Steffen
AU - Huang, Wenchao
AU - Li, Wei
AU - Benesperi, Iacopo
AU - Duffy, Noel W.
AU - Spiccia, Leone
AU - Bach, Udo
AU - Cheng, Yi-Bing
PY - 2016/2/23
Y1 - 2016/2/23
N2 - Perovskite-based solar cells are generally assembled as planar structures comprising a flat organoammonium metal halide perovskite layer, or mesoscopic structures employing a mesoporous metal-oxide scaffold into which the perovskite material is infiltrated. To present, little attention has been directed toward the texturing of the perovskite material itself. Herein, a textured CH3NH3PbI3 morphology formed through a thin mesoporous TiO2 seeding layer and a gas-assisted crystallization method is reported. The textured morphology comprises a multitiered nanostructure, which allows for significant improvements in the light harvesting and charge extraction performance of the solar cells. Due to these improvements, average short-circuit current densities for a batch of 28 devices are in excess of 22 mA cm-2, and the maximum recorded power conversion efficiency is 16.3%. The performance gains concomitant with this textured CH3NH3PbI3 morphology provide further insights into how control of the perovskite microstructure can be used to enhance the cell performance. A textured CH3NH3PbI3 morphology for perovskite-based solar cells is presented. The textured morphology exhibits enhanced light harvesting and charge separation properties. The highest measured power conversion efficiency is 16.3%.
AB - Perovskite-based solar cells are generally assembled as planar structures comprising a flat organoammonium metal halide perovskite layer, or mesoscopic structures employing a mesoporous metal-oxide scaffold into which the perovskite material is infiltrated. To present, little attention has been directed toward the texturing of the perovskite material itself. Herein, a textured CH3NH3PbI3 morphology formed through a thin mesoporous TiO2 seeding layer and a gas-assisted crystallization method is reported. The textured morphology comprises a multitiered nanostructure, which allows for significant improvements in the light harvesting and charge extraction performance of the solar cells. Due to these improvements, average short-circuit current densities for a batch of 28 devices are in excess of 22 mA cm-2, and the maximum recorded power conversion efficiency is 16.3%. The performance gains concomitant with this textured CH3NH3PbI3 morphology provide further insights into how control of the perovskite microstructure can be used to enhance the cell performance. A textured CH3NH3PbI3 morphology for perovskite-based solar cells is presented. The textured morphology exhibits enhanced light harvesting and charge separation properties. The highest measured power conversion efficiency is 16.3%.
KW - gas-assisted crystallization method
KW - perovskite solar cell
KW - textured morphology
UR - http://www.scopus.com/inward/record.url?scp=84958824910&partnerID=8YFLogxK
U2 - 10.1002/adfm.201504190
DO - 10.1002/adfm.201504190
M3 - Article
VL - 26
SP - 1278
EP - 1285
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 8
ER -