Ultrahigh open-circuit voltage for high performance mixed-cation perovskite solar cells using acetate anions

2018 ◽  
Vol 6 (29) ◽  
pp. 14387-14391 ◽  
Author(s):  
Rui Fu ◽  
Yicheng Zhao ◽  
Wenke Zhou ◽  
Qi Li ◽  
Yao Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Mixed Cation ◽  
Engineering Strategy

By an FAAc additive-engineering strategy, a high PCE of 21.9% with an ultrahigh VOC of up to 1.19 V was achieved.

scholarly journals Efficient wide-bandgap perovskite solar cells enabled by doping a bromine-rich molecule

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rui He ◽  
Tingting Chen ◽  
Zhipeng Xuan ◽  
Tianzhen Guo ◽  
Jincheng Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Tandem Solar Cells ◽  
Carrier Lifetimes

Abstract Wide-bandgap (wide-E g , ∼1.7 eV or higher) perovskite solar cells (PSCs) have attracted extensive attention due to the great potential of fabricating high-performance perovskite-based tandem solar cells via combining with low-bandgap absorbers, which is considered promising to exceed the Shockley–Queisser efficiency limit. However, inverted wide-E g PSCs with a minimized open-circuit voltage (V oc) loss, which are more suitable to prepare all-perovskite tandem devices, are still lacking study. Here, we report a strategy of adding 1,3,5-tris (bromomethyl) benzene (TBB) into wide-E g perovskite absorber to passivate the perovskite film, leading to an enhanced average V oc. Incorporation of TBB prolongs carrier lifetimes in wide-E g perovskite due to reduction of defects in perovskites and makes a better energy level matching between perovskite absorber and electron transport layer. As a result, we achieve the power conversion efficiency of 17.12% for our inverted TBB-doped PSC with an enhanced V oc of 1.19 V, compared with that (16.14%) for the control one (1.14 V).

scholarly journals Can ferroelectric polarization explain the high performance of hybrid halide perovskite solar cells?

2016 ◽  
Vol 18 (1) ◽  
pp. 331-338 ◽  
Author(s):  
Tejas S. Sherkar ◽  
L. Jan Anton Koster
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Ferroelectric Polarization ◽  
Halide Perovskite ◽  
Efficient Transport

Ferroelectricity can lead to creation of channels for efficient transport, however it is unlikely to explain the high open-circuit voltage (VOC), typical of high performance perovskite solar cells.

The introduction of a perovskite seed layer for high performance perovskite solar cells

2018 ◽  
Vol 6 (41) ◽  
pp. 20138-20144 ◽  
Author(s):  
Jaeki Jeong ◽  
Hak-Beom Kim ◽  
Yung Jin Yoon ◽  
Na Gyeong An ◽  
Seyeong Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Device Performance ◽  
Pure Crystal ◽  
Perovskite Layer ◽  
Perovskite Crystal ◽  
Planar Heterojunction

A compact seed perovskite layer (CSPL) with a p–i–n planar heterojunction structure for perovskite solar cells achieved a 19.24% power conversion efficiency with a record open circuit voltage of 1.16 V and 20.37% PCE was achieved with a CSPL assisted n–i–p structure in a pure crystal perovskite film. The CSPL assists vertical growth of the perovskite crystal to enhance device performance.

scholarly journals Energy alignment and recombination in perovskite solar cells: weighted influence on the open circuit voltage

2019 ◽  
Vol 12 (4) ◽  
pp. 1309-1316 ◽  
Author(s):  
Ilario Gelmetti ◽  
Núria F. Montcada ◽  
Ana Pérez-Rodríguez ◽  
Esther Barrena ◽  
Carmen Ocal ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Hole Transport ◽  
Mixed Cation

In this work, we assess the possible reasons for the differences observed in open circuit voltage (VOC) in mixed cation perovskite solar cells when comparing four different hole transport materials (HTMs), namely TAE-1, TAE-3, TAE-4 and spiro-OMeTAD.

scholarly journals Improved open-circuit voltage via Cs2CO3-Doped TiO2 for high-performance and stable perovskite solar cells

2020 ◽  
Vol 77 ◽  
pp. 105495 ◽  
Author(s):  
Hao Zong ◽  
Yan-Hui Lou ◽  
Meng Li ◽  
Kai-Li Wang ◽  
Sagar M. Jain ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Doped Tio2

Reducing recombination and enhancing open circuit voltage by Strontium-alloying in multiple cation perovskite solar cells

2017 ◽  
Author(s):  
Pietro Caprioglio ◽  
Fengshuo Zu ◽  
Christian M. Wolff ◽  
Martin Stolterfhot ◽  
Norbert Koch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit
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