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Photovoltaic proper...
Photovoltaic properties of LixCo3-xO4/TiO2 heterojunction solar cells with high open-circuit voltage
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- Wang, Baoyuan (författare)
- KTH,Energiteknik,Hubei University, China
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- Cai, Yixiao (författare)
- KTH,Uppsala universitet,Tillämpad materialvetenskap,Royal Inst Technol, Dept Energy Technol, SE-10044 Stockholm, Sweden.,Energiteknik,Uppsala University, Sweden
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- Dong, Wenjing (författare)
- Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Mat, Wuhan 430062, Hubei, Peoples R China.
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- Xia, Chen (författare)
- KTH,Energiteknik,Hubei University, China
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- Zhang, Wei (författare)
- Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Mat, Wuhan 430062, Hubei, Peoples R China.
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- Liu, Yanyan (författare)
- KTH,Energiteknik
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- Afzal, Muhammad (författare)
- KTH,Energiteknik
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- Wang, Hao (författare)
- Hubei Univ, Fac Phys & Elect Sci, Hubei Collaborat Innovat Ctr Adv Mat, Wuhan 430062, Hubei, Peoples R China.
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- Zhu, Bin (författare)
- KTH,Energiteknik,Hubei University, China
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(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
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Ingår i: Solar Energy Materials and Solar Cells. - : Elsevier BV. - 0927-0248 .- 1879-3398. ; 157, s. 126-133
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- All-oxide solar cells are presently attracting extensive research interest due to their excellent stability, low-cost and non-toxicity. However, the band gap of metal oxides is lack of effective optimization and results in poor photovoltaic performance, thus hindering their practical applications. In this work, Co3O4 was investigated for application as a photo-absorber in all-oxide solar cells, and its band gap was optimized by introducing Li dopant into the spinel structure. LixCo3-xO4 nanoparticles, prepared via the hydrothermal method, were homogenously coated onto TiO2 mesoporous films, which were then used to fabricate planar heterojunction TiO2/LixCo3-xO4 solar cells (SCs). The effects of Li-doping on the heterojunction solar cell performance were further investigated. The findings revealed that the incorporation of Li ions into Co3O4 led to a significant enhancement in short-circuit current density (J(sc)). Remarkably, a high open-circuit voltage (V-oc) of 0.70 V was also achieved. Besides, reasons for the enhanced cell performance are the narrower band gap, reduced photogenerated carrier recombination and the more favorable energy band structure as compared with SCs assembled from pure Co3O4.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- Planar heterojunction solar cells
- Li-doped Co3O4
- Open-circuit voltages
- Carrier recombination
- Energy band structure
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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