Identifying the origin of the Voc deficit of kesterite solar cells from the two grain growth mechanisms induced by Sn2+ and Sn4+ precursors in DMSO solution

2021 ◽  
Vol 14 (4) ◽  
pp. 2369-2380 ◽  
Author(s):  
Yuancai Gong ◽  
Yifan Zhang ◽  
Qiang Zhu ◽  
Yage Zhou ◽  
Ruichan Qiu ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Solar Cells ◽  
Solar Cell ◽  
Grain Growth ◽  
Clean Surface ◽  
Dmso Solution ◽  
Growth Mechanisms ◽  
High Quality ◽  
Defective Surface ◽  
Multi Phase

The large Voc deficit of kesterite solar cell mainly comes from the defective surface caused by multi-phase fusion grain growth; direct phase transformation grain growth produces high quality absorber with clean surface and thus high device Voc.

Suppressing intrinsic self-doping of CsPbIBr2 films for high-performance all-inorganic, carbon-based perovskite solar cells

2020 ◽  
Vol 4 (9) ◽  
pp. 4506-4515
Author(s):  
Zeyang Zhang ◽  
Fengqin He ◽  
Weidong Zhu ◽  
Dandan Chen ◽  
Wenming Chai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Doping Level ◽  
High Performance ◽  
Inorganic Carbon ◽  
Perovskite Solar Cells ◽  
High Quality ◽  
Carbon Based

High-quality CsPbIBr2 films with a much lower self-doping level are obtained by the use of a CsI-rich precursor, which enables the fabrication of an all-inorganic, carbon-based solar cell with a superior efficiency of 10.48%.

scholarly journals Experimental demonstration of enhanced photon recycling in angle-restricted GaAs solar cells

2014 ◽  
Vol 7 (6) ◽  
pp. 1907-1912 ◽  
Author(s):  
Emily D. Kosten ◽  
Brendan M. Kayes ◽  
Harry A. Atwater
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Experimental Demonstration ◽  
High Quality ◽  
Photon Recycling

Enhanced open-circuit voltage demonstrated in a high quality GaAs solar cell by limiting the angles of emitted light from the cell.

Amorphous Silicon Alloy Materials and Solar Cells Near the Threshold of Microcrystallinity

1999 ◽  
Vol 557 ◽  
Author(s):  
J. Yang ◽  
S. Guha
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Amorphous Silicon ◽  
Triple Junction ◽  
High Efficiency ◽  
Spectral Response ◽  
High Quality ◽  
Silicon Alloys ◽  
Solar Cell Performance ◽  
Hydrogen Dilution

AbstractOne of the most effective techniques used to obtain high quality amorphous silicon alloys is the use of hydrogen dilution during film growth. The resultant material exhibits a more ordered microstructure and gives rise to high efficiency solar cells. As the hydrogen dilution increases, however, a threshold is reached, beyond which microcrystallites begin to form rapidly. In this paper, we review some of the interesting features associated with the thin film materials obtained from various hydrogen dilutions. They include the observation of linear-like objects in the TEM micrograph, a shift of the principal Si TO band in the Raman spectrum, a sharp, low temperature peak in the H2 evolution spectrum, a shift of the wagging mode in the IR spectrum, and a narrowing of the Si (111) peak in the X-ray diffraction pattern. These spectroscopic tools have allowed us to optimize deposition conditions to near the threshold of microcrystallinity and obtain desired high quality materials. Incorporation of the improved materials into device configuration has significantly enhanced the solar cell performance. Using a spectral-splitting, triple-junction configuration, the spectral response of a typical high efficiency device spans from below 350 nm to beyond 950 nm with a peak quantum efficiency exceeding 90%; the triple stack generates a photocurrent of 27 mA/cm2. This paper describes the effect of the improved materials on various solar cell structures, including a 13% active-area, stable triple-junction device.

Solvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells

Nanoscale ◽  
2015 ◽  
Vol 7 (24) ◽  
pp. 10595-10599 ◽  
Author(s):  
Yaoguang Rong ◽  
Zhongjia Tang ◽  
Yufeng Zhao ◽  
Xin Zhong ◽  
Swaminathan Venkatesan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Growth ◽  
Intermediate Phase ◽  
Solution Process ◽  
High Quality ◽  
Solvent Engineering ◽  
Heterojunction Solar Cells ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction ◽  
Process Benefits

The formation of intermediate phase of (CH3NH3)2Pb3I8·2DSMO in the solution process benefits the growth of high-quality perovskite CH3NH3PbI3film.

An annealing-free anatase TiO2 nanocrystal film as an electron collection layer in organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88973-88978 ◽  
Author(s):  
Di Li ◽  
Yanli Chen ◽  
Peng Du ◽  
Zhao Zhao ◽  
Haifeng Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Anatase Tio2 ◽  
High Quality ◽  
Electron Collection

An annealing-free TiO2 electron collection layer in organic solar cell based on ultrafine, clean and high-quality anatase TiO2 nanocrystals.

High-Quality Amorphous Silicon Carbide Prepared by a New Fabrication Method for a Window P-Layer of Solar Cells

1992 ◽  
Vol 242 ◽  
Author(s):  
K. Ninomiya ◽  
H. Haku ◽  
H. Tarui ◽  
N. Nakamura ◽  
M. Tanaka ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Type A ◽  
Wide Bandgap ◽  
Dilution Method ◽  
High Quality ◽  
Bond Density ◽  
Si Solar Cell ◽  
P Type

ABSTRACTA total area conversion efficiency of 11.1% has been achieved for a 1Ocm×1Ocm integrated-type single-junction a-Si solar cell submodule using a high-quality wide-bandgap p-layer doped with B(CH3)3 and other advanced techniques. This is the highest conversion efficiency ever reported for an a-Si solar cell with an area of 100cm2. As for a multi-junction solar cell, 12.1% was obtained for a 1cm2 cell with a high-quality wide-bandgap a-Si i-layer. The layer was fabricated by a hydrogen dilution method at a low substrate temperature for a front active layer of an a-Si/a-Si/a-SiGe stacked solar cell.For further improvement in conversion efficiency, a wider-bandgap a-SiC was developed using a novel plasma CVD method, called the CPM (Controlled Plasma Magnetron) method. From XPS and IR measurements, the resultant films were found to have high Si-C bond density and low Si-H bond density, p-type a-SiC was fabricated using the post-doping technique, and dark conductivity more than 10-5(Q. cm)-1 was obtained (Eopt3 ≥ 2eV; Eopt2 2.2eV), whereas that of conventional p-type a-SiC is less than 10-6(Ω·cm)-1. These properties are very promising for application to the p-layers of advanced a-Si solar cells.

High performance low-bandgap perovskite solar cells based on a high-quality mixed Sn–Pb perovskite film prepared by vacuum-assisted thermal annealing

2018 ◽  
Vol 6 (34) ◽  
pp. 16347-16354 ◽  
Author(s):  
Meiyue Liu ◽  
Ziming Chen ◽  
Qifan Xue ◽  
Sin Hang Cheung ◽  
Shu Kong So ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Thermal Annealing ◽  
High Performance ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Film Morphology ◽  
High Quality ◽  
Low Bandgap

Vacuum-assisted thermal annealing not only could improve film morphology and crystallinity, but also could accelerate the sublimation of undesired MACl. With the help of this process, we obtain a highly efficient low-bandgap CH3NH3Sn0.5Pb0.5IxCl3−x perovskite solar cell with a power conversion efficiency of 12.3%.

High quality sustainable Cu2ZnSnSe4 (CZTSe) absorber layers in highly efficient CZTSe solar cells

2017 ◽  
Vol 19 (3) ◽  
pp. 795-802 ◽  
Author(s):  
Fang-I Lai ◽  
Jui-Fu Yang ◽  
Yu-Ling Wei ◽  
Shou-Yi Kuo
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Conversion Efficiency ◽  
Thin Film Solar Cell ◽  
Environmentally Benign ◽  
High Quality ◽  
Highly Efficient

An evaporation-processed Cu2ZnSnSe4 thin film solar cell with a conversion efficiency of 7.18% was facilely fabricated in an environmentally benign selenium atmosphere.

Dramatically promoted crystallization control of organolead triiodide perovskite film by a homogeneous cap for high efficiency planar-heterojunction solar cells

2016 ◽  
Vol 4 (32) ◽  
pp. 12535-12542 ◽  
Author(s):  
Weidong Zhu ◽  
Chunxiong Bao ◽  
Bihu Lv ◽  
Faming Li ◽  
Yong Yi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Cell Performance ◽  
High Quality ◽  
Solar Cell Performance ◽  
Heterojunction Solar Cells ◽  
Planar Heterojunction Solar Cells ◽  
Planar Heterojunction

A homogeneous cap-mediated crystallization strategy can be used to realize high-quality organolead triiodide perovskite (OTP) films with greatly enhanced solar cell performance.

Covering effect of conductive glass: a facile route to tailor the grain growth of hybrid perovskites for highly efficient solar cells

2018 ◽  
Vol 6 (41) ◽  
pp. 20289-20296 ◽  
Author(s):  
Deli Shen ◽  
Haijuan Mao ◽  
Yafeng Li ◽  
Antonio Abate ◽  
Mingdeng Wei
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Grain Growth ◽  
Growth Process ◽  
Nucleation And Growth ◽  
Perovskite Solar Cell ◽  
Annealing Process ◽  
Conductive Glass ◽  
Film Annealing ◽  
Facile Route

A feasible and facile method to control the nucleation and growth process of perovskite grains is introduced for conductive glass to assist the perovskite film annealing process, and a maximum PCE of 18.08% can be achieved in the ultimately formed perovskite solar cell.

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