Electroreflectance spectroscopy on CdS and Zn(O,S) buffer layers in Cu(In,Ga)Se2 solar cells: Suppression of interference effects

2018 ◽  
Author(s):  
Jasmin Seeger ◽  
Ulrich Piesch ◽  
Wolfram Witte ◽  
Dimitrios Hariskos ◽  
Oliver Kiowski ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layers ◽  
Interference Effects ◽  
Electroreflectance Spectroscopy

Enhanced performance and stability of inverted organic solar cells by using novel zinc-benzothiazole complexes as anode buffer layers

2011 ◽  
Vol 21 (39) ◽  
pp. 15587 ◽  
Author(s):  
Somnath Dey ◽  
Paola Vivo ◽  
Alexander Efimov ◽  
Helge Lemmetyinen
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Buffer Layers

A numerical optimization study of CdS and Mg0.125Zn0.875O buffer layers in CIGS-based solar cells using wxAMPS-1D package.

2020 ◽  
pp. 1-13
Author(s):  
Moufdi Hadjab ◽  
Jan-Martin Wagner ◽  
Fayçal Bouzid ◽  
Samah Boudour ◽  
Abderrahim Hadj Larbi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Numerical Optimization ◽  
Buffer Layers ◽  
Optimization Study

Electrical characteristics of amorphous Si:H/crystalline Si0.3Ge0.7 heterojunction solar cells grown on compositionally graded buffer layers

2015 ◽  
Vol 425 ◽  
pp. 162-166 ◽  
Author(s):  
Ryuji Oshima ◽  
Mitsuyuki Yamanaka ◽  
Hitoshi Kawanami ◽  
Isao Sakata ◽  
Koji Matsubara ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layers ◽  
Electrical Characteristics ◽  
Heterojunction Solar Cells

Effect of Inorganic Nanoparticle Addition to the Hole-Collecting Buffer Layers in Polymer Solar Cells

2012 ◽  
Vol 12 (7) ◽  
pp. 5696-5699 ◽  
Author(s):  
Jaehoon Jeong ◽  
Sungho Nam ◽  
Joonhyeon Kim ◽  
Sungho Woo ◽  
Hwajeong Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Buffer Layers ◽  
Inorganic Nanoparticle

Improvement of red light response of Cu2Sn1−xGexS3 solar cells by optimization of CdS buffer layers

2015 ◽  
Vol 118 (15) ◽  
pp. 154502 ◽  
Author(s):  
Mitsutaro Umehara ◽  
Yasuhiko Takeda ◽  
Shin Tajima ◽  
Tomoyoshi Motohiro ◽  
Takenobu Sakai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Red Light ◽  
Light Response ◽  
Buffer Layers

Attainment of Stable (FTO/ZnO/CdS/CH3NH3SnI3/GaAs/Au) Perovskite Solar Cell With Above 23% Photovoltaic Performance Using Solar Capacitance Simulator

2021 ◽  
Author(s):  
Irfan Qasim ◽  
Owais Ahmad ◽  
Asim Rashid ◽  
Tashfeen Zehra ◽  
Muhammad Imran Malik ◽  
...  
Keyword(s):  
Solar Cells ◽  
Defect Density ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Hole Transport ◽  
Transport Layer ◽  
Buffer Layers ◽  
Electron Transport Layer ◽  
Device Performance ◽  
Highly Efficient

Abstract Solar energy is found to be low cost and abundant of all available energy resources and needs exploration of highly efficient devices for global energy requirements. We have investigated methyl ammonium tin halide (CH3NH3SnI3)-based perovskite solar cells (PSCs) for optimized device performance using solar capacitance simulator SCAPS-1D software. This study is a step forward towards availability of stable and non-toxic solar cells. We explored all necessary parameters such as metal work functions, thickness of absorber and buffer layers, charge carrier’s mobility and defect density for improved device performance. Calculations revealed that for the best efficiency of device the maximum thickness of the perovskite absorber layer must be 4.2 μm. Furthermore, optimized thickness values of (ZnO=0.01 μm) as electron transport layer (ETL), GaAs as hole transport layer (HTL=3.02 μm) and (CdS=10 nm) and buffer layer have provided power conversion efficiency (PCE) of 23.53%. Variation of open circuit voltage (Voc), Short circuit current (Jsc), Fill Factor (FF%) and quantum efficiency against thickness of all layers in FTO/ZnO/CdS/CH3NH3SnI3/GaAs/Au compositions have been critically explored and reported. Interface defects and defect density in different inserted layers have also been reported in this study as they can play a crucial for the device performance. Insertion of ZnO layer and CdS buffer layers have shown improved device performance and PCE. Current investigations may prove to be useful for designing and fabrication of climate friendly, non-toxic and highly efficient solar cells.

Improving the stabilities of organic solar cells via employing a mixed cathode buffer layer

2021 ◽  
Vol 95 (3) ◽  
pp. 30201
Author(s):  
Xi Guan ◽  
Yufei Wang ◽  
Shang Feng ◽  
Jidong Zhang ◽  
Qingqing Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Solar Cells ◽  
Mixed Layer ◽  
Organic Solar Cells ◽  
Buffer Layers ◽  
Commercial Development ◽  
Conversion Efficiencies ◽  
Thermal Stability Of ◽  
Cathode Buffer Layers

Organic solar cells (OSCs) have been fabricated using cathode buffer layers based on bathocuproine (BCP) and 4,4'-N,N'-dicarbazole-biphenyl (CBP). It is found that despite nearly same power conversion efficiencies, the bilayer of BCP/CBP shows increased thermal stability of device than the monolayer of BCP, mostly because upper CBP thin film stabilizes under BCP thin film. The mixed layer of BCP:CBP gives slightly decreased efficiency than BCP and BCP/CBP, mostly because the electron mobility of the OSC using BCP:CBP is decreased than those using BCP and BCP/CBP. However, the BCP:CBP increases thermal stability of device than BCP and BCP/CBP, ascribed to that the BCP and CBP effectively inhibit reciprocal tendencies of crystallizations in the mixed layer. Moreover, the BCP:CBP improves the light stability of device than the BCP and BCP/CBP, because the energy transfer from BCP to CBP in in the mixed layer effectively decelerates the photodegradation of BCP. We provide a facial method to improve the stabilities of cathode buffer layers against heat and light, beneficial to the commercial development of OSCs.

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