研究目的
Investigating the proof-of-concept tandem solar cell using Sb2S3 and Sb2Se3 as top and bottom cell absorber materials to enhance the energy conversion efficiency of antimony selenosulfide.
研究成果
The tandem solar cell based on Sb2S3 and Sb2Se3 demonstrates enhanced efficiency over individual sub-cells, with optimized light utilization and alleviated voltage loss, suggesting a promising approach for high-efficiency antimony selenosulfide solar cells.
研究不足
The study acknowledges the increased serial resistance due to the higher sheet resistance of graphene electrode contributing to reduced VOC and FF, and the need for further improvement in transmission efficiency.
1：Experimental Design and Method Selection:
The study involves the fabrication of a tandem solar cell using Sb2S3 and Sb2Se3 as absorber materials, with few-layer graphene as a transparent contact for the top sub-cell.
2：Sample Selection and Data Sources:
Sb2S3 and Sb2Se3 thin films were synthesized by hydrothermal deposition and thermal evaporation methods, respectively.
3：List of Experimental Equipment and Materials:
Includes graphene electrodes, PEDOT:PSS, Spiro-OMeTAD, CdS, and FTO-coated glass substrates.
4：Experimental Procedures and Operational Workflow:
Detailed steps include the preparation of graphene electrodes, deposition of Sb2S3 and Sb2Se3 films, and assembly of the tandem device.
5：Data Analysis Methods:
Characterization techniques include Raman spectroscopy, UV-vis transmittance spectra, SEM, and J-V curve measurements under AM1.5 solar-simulator.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
UV-vis spectrophotometer
SOLID-3700
Shimadzu
Used to characterize UV-vis transmittance spectra.
-
Scanning Electron Microscope
SU8220
HITACHI
Used to characterize the thickness of the samples.
-
X-Ray Diffractometer
TTR-Ⅲ
Rigaku
Used to characterize XRD patterns of the thin films.
-
graphene
Used as a transparent contact for the top sub-cell enabling high transmittance and excellent interfacial contact.
-
PEDOT:PSS
CLEVIOS PH1000
Used to improve the conductivity of the graphene film and optimize the band alignment in the Sb2S3 solar cells.
-
Spiro-OMeTAD
Used as the hole transport layer in the Sb2S3 solar cells.
-
CdS
Used as the electron transport layer in the Sb2S3 solar cells.
-
FTO-coated glass
Used as the substrate for the solar cells.
-
Raman Spectrometer
LABRAM-HR Evolution
Jobin Yvon
Used to characterize the as-synthesized graphene sheet.
-
solar-simulator
Keithley 4200
Used to characterize the J-V curves of the solar cells under standard AM1.5.
-
solar cell quantum efficiency measurement system
Model SPIEQ200
Used to characterize the EQEs of the devices.
-
登录查看剩余9件设备及参数对照表
查看全部
