Abstract
Developing efficient interfacial hole transporting materials (HTMs) is crucial for achieving high-performance Pb-free Sn-based halide perovskite solar cells (PSCs). Here, a new series of benzodithiophene (BDT)-based organic small molecules containing tetra- and di-triphenyl amine donors prepared via a straightforward and scalable synthetic route is reported. The thermal, optical, and electrochemical properties of two BDT-based molecules are shown to be structurally and energetically suitable to serve as HTMs for Sn-based PSCs. It is reported here that ethylenediammonium/formamidinium tin iodide solar cells using BDT-based HTMs deliver a champion power conversion efficiency up to 7.59%, outperforming analogous reference solar cells using traditional and expensive HTMs. Thus, these BDT-based molecules are promising candidates as HTMs for the fabrication of high-performance Sn-based PSCs.
| Original language | English |
|---|---|
| Article number | 1905393 |
| Journal | Advanced Functional Materials |
| DOIs | |
| Publication status | Accepted/In press - Jan 1 2019 |
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Keywords
- benzodithiophene
- lead-free
- perovskite solar cells
- tin
- triphenylamine
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Biomaterials
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
- Electrochemistry
Cite this
Benzodithiophene Hole-Transporting Materials for Efficient Tin-Based Perovskite Solar Cells. / Vegiraju, Sureshraju; Ke, Weijun; Priyanka, Pragya; Ni, Jen Shyang; Wu, Yi Ching; Spanopoulos, Ioannis; Yau, Shueh Lin; Marks, Tobin J; Chen, Ming Chou; Kanatzidis, Mercouri G.
In: Advanced Functional Materials, 01.01.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Benzodithiophene Hole-Transporting Materials for Efficient Tin-Based Perovskite Solar Cells
AU - Vegiraju, Sureshraju
AU - Ke, Weijun
AU - Priyanka, Pragya
AU - Ni, Jen Shyang
AU - Wu, Yi Ching
AU - Spanopoulos, Ioannis
AU - Yau, Shueh Lin
AU - Marks, Tobin J
AU - Chen, Ming Chou
AU - Kanatzidis, Mercouri G
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Developing efficient interfacial hole transporting materials (HTMs) is crucial for achieving high-performance Pb-free Sn-based halide perovskite solar cells (PSCs). Here, a new series of benzodithiophene (BDT)-based organic small molecules containing tetra- and di-triphenyl amine donors prepared via a straightforward and scalable synthetic route is reported. The thermal, optical, and electrochemical properties of two BDT-based molecules are shown to be structurally and energetically suitable to serve as HTMs for Sn-based PSCs. It is reported here that ethylenediammonium/formamidinium tin iodide solar cells using BDT-based HTMs deliver a champion power conversion efficiency up to 7.59%, outperforming analogous reference solar cells using traditional and expensive HTMs. Thus, these BDT-based molecules are promising candidates as HTMs for the fabrication of high-performance Sn-based PSCs.
AB - Developing efficient interfacial hole transporting materials (HTMs) is crucial for achieving high-performance Pb-free Sn-based halide perovskite solar cells (PSCs). Here, a new series of benzodithiophene (BDT)-based organic small molecules containing tetra- and di-triphenyl amine donors prepared via a straightforward and scalable synthetic route is reported. The thermal, optical, and electrochemical properties of two BDT-based molecules are shown to be structurally and energetically suitable to serve as HTMs for Sn-based PSCs. It is reported here that ethylenediammonium/formamidinium tin iodide solar cells using BDT-based HTMs deliver a champion power conversion efficiency up to 7.59%, outperforming analogous reference solar cells using traditional and expensive HTMs. Thus, these BDT-based molecules are promising candidates as HTMs for the fabrication of high-performance Sn-based PSCs.
KW - benzodithiophene
KW - lead-free
KW - perovskite solar cells
KW - tin
KW - triphenylamine
UR - http://www.scopus.com/inward/record.url?scp=85071739241&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85071739241&partnerID=8YFLogxK
U2 - 10.1002/adfm.201905393
DO - 10.1002/adfm.201905393
M3 - Article
AN - SCOPUS:85071739241
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
M1 - 1905393
ER -