Highly efficient small molecule multi-junction organic photovoltaic cells
Abstract
A highly efficient multi junction photovoltaic device, such as a two, three, or four junction device, is disclosed. The multi-junction device may include a first subcell comprising a first photoactive region and a second subcell comprising a second photoactive region. The first and second photoactive regions are designed to minimize spectral overlap and maximize photocurrent across a broad absorption spectra, such as wavelengths ranging from 400 nm to 900 nm. The device may further include an inter-connecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent. By introducing a transparent interconnecting layer, a dual element (tandem) cell achieves a power conversion efficiency of 10.0±0.5%. By adding an additional (3rd) sub-cell that absorbs at the second order optical interference maximum within the stack. The triple junction cell significantly improves the quantum efficiency at shorter wavelengths, achieving a power conversion efficiency of 11.1±0.5%. Adding additional sub-cells has been shown to increase power conversion efficiency above 12%.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1892620
- Patent Number(s):
- 11251386
- Application Number:
- 15/125,690
- Assignee:
- The Regents of the University of Michigan (Ann Arbor, MI)
- Patent Classifications (CPCs):
-
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- DOE Contract Number:
- EE0005310; SC0000957
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 04/06/2015
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Che, Xiaozhou, Xiao, Xin, and Forrest, Stephen R. Highly efficient small molecule multi-junction organic photovoltaic cells. United States: N. p., 2022.
Web.
Che, Xiaozhou, Xiao, Xin, & Forrest, Stephen R. Highly efficient small molecule multi-junction organic photovoltaic cells. United States.
Che, Xiaozhou, Xiao, Xin, and Forrest, Stephen R. Tue .
"Highly efficient small molecule multi-junction organic photovoltaic cells". United States. https://www.osti.gov/servlets/purl/1892620.
@article{osti_1892620,
title = {Highly efficient small molecule multi-junction organic photovoltaic cells},
author = {Che, Xiaozhou and Xiao, Xin and Forrest, Stephen R.},
abstractNote = {A highly efficient multi junction photovoltaic device, such as a two, three, or four junction device, is disclosed. The multi-junction device may include a first subcell comprising a first photoactive region and a second subcell comprising a second photoactive region. The first and second photoactive regions are designed to minimize spectral overlap and maximize photocurrent across a broad absorption spectra, such as wavelengths ranging from 400 nm to 900 nm. The device may further include an inter-connecting layer, disposed between the first subcell and the second subcell, that is at least substantially transparent. By introducing a transparent interconnecting layer, a dual element (tandem) cell achieves a power conversion efficiency of 10.0±0.5%. By adding an additional (3rd) sub-cell that absorbs at the second order optical interference maximum within the stack. The triple junction cell significantly improves the quantum efficiency at shorter wavelengths, achieving a power conversion efficiency of 11.1±0.5%. Adding additional sub-cells has been shown to increase power conversion efficiency above 12%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {2}
}
Works referenced in this record:
Surprisingly High Conductivity and Efficient Exciton Blocking in Fullerene/Wide-Energy-Gap Small Molecule Mixtures
journal, May 2015
- Bergemann, Kevin J.; Amonoo, Jojo A.; Song, Byeongseop
- Nano Letters, Vol. 15, Issue 6
Efficient Tandem and Triple-Junction Polymer Solar Cells
journal, April 2013
- Li, Weiwei; Furlan, Alice; Hendriks, Koen H.
- Journal of the American Chemical Society, Vol. 135, Issue 15
Accurate spectral response measurements of a complementary absorbing organic tandem cell with fill factor exceeding the subcells
journal, March 2014
- Cheyns, David; Kim, Minjae; Verreet, Bregt
- Applied Physics Letters, Vol. 104, Issue 9
Role of transition metal oxides in the charge recombination layer used in tandem organic photovoltaic cells
journal, January 2012
- Li, Jian; Bao, Qin-Ye; Wei, Huai-Xin
- Journal of Materials Chemistry, Vol. 22, Issue 13
Highly efficient bulk heterojunction photovoltaic cells based on C 70 and tetraphenyldibenzoperiflanthene
journal, April 2013
- Zheng, Yan-qiong; Potscavage, William J.; Komino, Takeshi
- Applied Physics Letters, Vol. 102, Issue 14
A donor–acceptor–acceptor molecule for vacuum-processed organic solar cells with a power conversion efficiency of 6.4%
journal, January 2012
- Chiu, Shi-Wen; Lin, Li-Yen; Lin, Hao-Wu
- Chem. Commun., Vol. 48, Issue 13