Achieving Low VOC-deficit Characteristics in Cu2ZnSn(S,Se)4 Solar Cells through Improved Carrier Separation

2021 ◽  
Author(s):  
Vijay Karade ◽  
Eunyoung Choi ◽  
Myeng Gil Gang ◽  
Hyesun Yoo ◽  
Abhishek Lokhande ◽  
...  
Keyword(s):  
Solar Cells ◽  
Carrier Separation

Competition of Carrier Separation and Recombination for an Optimized Electrode Configuration for Flexible Thin-Film Solar Cells

2018 ◽  
Vol 10 (38) ◽  
pp. 32067-32077 ◽  
Author(s):  
Xiangyang Liu ◽  
Shun Wang ◽  
Xinsheng Liu ◽  
Xiaotao Zhao ◽  
Yuzong Gu
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Electrode Configuration ◽  
Thin Film Solar Cells ◽  
Carrier Separation

scholarly journals Dissociation of Charge Transfer States and Carrier Separation in Bilayer Organic Solar Cells: A Time-Resolved Electroabsorption Spectroscopy Study

2015 ◽  
Vol 137 (25) ◽  
pp. 8192-8198 ◽  
Author(s):  
Andrius Devižis ◽  
Jelissa De Jonghe-Risse ◽  
Roland Hany ◽  
Frank Nüesch ◽  
Sandra Jenatsch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Organic Solar Cells ◽  
Spectroscopy Study ◽  
Time Resolved ◽  
Electroabsorption Spectroscopy ◽  
Carrier Separation

scholarly journals Nonuniform Effect of Carrier Separation Efficiency and Light Absorption in Type-II Perovskite Nanowire Solar Cells

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Weiping Wang ◽  
Jialun He ◽  
Yiyan Cao ◽  
Lijing Kong ◽  
Xuanli Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Absorption ◽  
Separation Efficiency ◽  
Type Ii ◽  
Carrier Separation

scholarly journals Gradient engineered light absorption layer for enhanced carrier separation efficiency in perovskite solar cells

2020 ◽  
Author(s):  
Gaozhu Wu ◽  
Qing Zhu ◽  
Teng Zhang ◽  
Ziqi Zou ◽  
Weiping Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Light Absorption ◽  
Separation Efficiency ◽  
Perovskite Solar Cells ◽  
Thermal Evaporation Method ◽  
Absorption Layer ◽  
Perovskite Materials ◽  
High Efficient ◽  
Carrier Separation

Abstract Carrier transport behavior in perovskite light absorption layer significantly impacts the performance of perovskite solar cells (PSCs). In this work, reduced carrier recombination losses were achieved by the design of band structure in perovskite materials. An ultrathin (PbI 2 /PbBr 2 ) n film with a gradient thickness ratio was deposited as the lead halide precursor layer by thermal evaporation method, and PSCs with a gradient band structure in perovskite absorption layer were fabricated by a two-step method in ambient atmosphere. For comparison, PSCs with homogeneous perovskite materials of MAPbI 3 and MAPbI x Br 3-x were fabricated as well. It is found that the gradient type-II band structure greatly reduces the carrier lifetime and enhances the carrier separation efficiency. As a result, the PSCs with a gradient band structure exhibit an average power conversion efficiency of 17.5%, which is 1-2% higher than that of traditional PSCs. This work provides a novel method for developing high-efficient PSCs.

scholarly journals Carrier separation and transport in perovskite solar cells studied by nanometre-scale profiling of electrical potential

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Chun-Sheng Jiang ◽  
Mengjin Yang ◽  
Yuanyuan Zhou ◽  
Bobby To ◽  
Sanjini U. Nanayakkara ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electrical Potential ◽  
Perovskite Solar Cells ◽  
Carrier Separation

Spectral Response and Loss Mechanisms in Amorphous Silicon Solar Cells Determined by Photothermal Deflection Spectroscopy

1998 ◽  
Vol 507 ◽  
Author(s):  
N. Höhne ◽  
R. Carius ◽  
H. Wagner
Keyword(s):  
Solar Cells ◽  
Amorphous Silicon ◽  
Spectral Response ◽  
Operating Conditions ◽  
Thin Film Solar Cells ◽  
Silicon Solar Cells ◽  
Photothermal Deflection Spectroscopy ◽  
Photothermal Deflection ◽  
Carrier Separation ◽  
Set Up

ABSTRACTA new method to analyse the optical and thermal losses in amorphous silicon solar cells is presented. It is demonstrated that PDS measurements can provide important information on the losses that limit the performance of such cells. The major advantage of the method presented is the ability to determine parameters which are not accessible by other methods, i.e. the reflection, absorption without carrier separation, thermalization and losses in p- and n-layer, field losses, recombination and electrical gain of the solar cell under operating conditions. The method can be applied to thin film solar cells of all kinds complementary to DSR which can also be measured in the same set-up. Eliminating some experimental difficulties could lead to a new comprehensive and complementary characterisation method of solar cells of all kinds.

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