Abstract
Hybrid organic-inorganic halide perovskites are low-cost solution-processable solar cell materials with photovoltaic properties that rival those of crystalline silicon. The perovskite films are typically sandwiched between thin layers of hole and electron transport materials, which efficiently extract photogenerated charges. This affords high-energy conversion efficiencies but results in significant performance and fabrication challenges. Herein we present a simple charge transport layer-free perovskite solar cell, comprising only a perovskite layer with two interdigitated gold back-contacts. Charge extraction is achieved via self-assembled monolayers and their associated dipole fields at the metal-perovskite interface. Photovoltages of ∼600 mV generated by self-assembled molecular monolayer modified perovskite solar cells are equivalent to the built-in potential generated by individual dipole layers. Efficient charge extraction results in photocurrents of up to 12.1 mA cm-2 under simulated sunlight, despite a large electrode spacing.
| Original language | English |
|---|---|
| Article number | 613 |
| Number of pages | 8 |
| Journal | Nature Communications |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Dec 2017 |
Cite this
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Dipole-field-assisted charge extraction in metal-perovskite-metal back-contact solar cells. / Lin, Xiongfeng; Jumabekov, Askhat N.; Lal, Niraj N.; Pascoe, Alexander R.; Gómez, Daniel E.; Duffy, Noel W.; Chesman, Anthony S. R.; Sears, Kallista; Fournier, Maxime; Zhang, Yupeng; Bao, Qiaoliang; Cheng, Yi-Bing; Spiccia, Leone; Bach, Udo.
In: Nature Communications, Vol. 8, No. 1, 613, 01.12.2017.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Dipole-field-assisted charge extraction in metal-perovskite-metal back-contact solar cells
AU - Lin, Xiongfeng
AU - Jumabekov, Askhat N.
AU - Lal, Niraj N.
AU - Pascoe, Alexander R.
AU - Gómez, Daniel E.
AU - Duffy, Noel W.
AU - Chesman, Anthony S. R.
AU - Sears, Kallista
AU - Fournier, Maxime
AU - Zhang, Yupeng
AU - Bao, Qiaoliang
AU - Cheng, Yi-Bing
AU - Spiccia, Leone
AU - Bach, Udo
PY - 2017/12/1
Y1 - 2017/12/1
N2 - Hybrid organic-inorganic halide perovskites are low-cost solution-processable solar cell materials with photovoltaic properties that rival those of crystalline silicon. The perovskite films are typically sandwiched between thin layers of hole and electron transport materials, which efficiently extract photogenerated charges. This affords high-energy conversion efficiencies but results in significant performance and fabrication challenges. Herein we present a simple charge transport layer-free perovskite solar cell, comprising only a perovskite layer with two interdigitated gold back-contacts. Charge extraction is achieved via self-assembled monolayers and their associated dipole fields at the metal-perovskite interface. Photovoltages of ∼600 mV generated by self-assembled molecular monolayer modified perovskite solar cells are equivalent to the built-in potential generated by individual dipole layers. Efficient charge extraction results in photocurrents of up to 12.1 mA cm-2 under simulated sunlight, despite a large electrode spacing.
AB - Hybrid organic-inorganic halide perovskites are low-cost solution-processable solar cell materials with photovoltaic properties that rival those of crystalline silicon. The perovskite films are typically sandwiched between thin layers of hole and electron transport materials, which efficiently extract photogenerated charges. This affords high-energy conversion efficiencies but results in significant performance and fabrication challenges. Herein we present a simple charge transport layer-free perovskite solar cell, comprising only a perovskite layer with two interdigitated gold back-contacts. Charge extraction is achieved via self-assembled monolayers and their associated dipole fields at the metal-perovskite interface. Photovoltages of ∼600 mV generated by self-assembled molecular monolayer modified perovskite solar cells are equivalent to the built-in potential generated by individual dipole layers. Efficient charge extraction results in photocurrents of up to 12.1 mA cm-2 under simulated sunlight, despite a large electrode spacing.
UR - http://www.scopus.com/inward/record.url?scp=85029656709&partnerID=8YFLogxK
U2 - 10.1038/s41467-017-00588-3
DO - 10.1038/s41467-017-00588-3
M3 - Article
VL - 8
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 613
ER -