Synthesis and morphological studies of a poly(5,6-difluorobenzo-2,1,3-thiadiazole-4,7-diyl-alt-quaterchalcogenophene) copolymer with 7.3% polymer solar cell efficiency

We have fabricated organic solar cell of a new low bandgap polymer poly[4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b′]dithiophene-2,6-diyl-alt-4,7-bis(2-thienyl)-2,1,3-benzothiadiazole-5′,5′′-diyl] (PCPDTTBTT). We have investigated for the first time the stability tests, ISOS-L-1 and ISOS-D-3, of PCPDTTBTT solar cells. Thermal annealing of PCPDTTBTT solar cells at 80°C brought about an improvement of photocurrent generation, stability, and efficiency of the solar cells. T80 value of PCPDTTBTT solar cell is about 150 hours which is close to P3HT (235 h). PCPDTTBTT is very promising polymer for both polymer solar cell efficiency and stability.

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Polymorphisms and morphological studies of a difluorobenzothiadiazole conjugated copolymer with 7.8% polymer solar cell efficiency

Journal of Materials Chemistry A ◽

10.1039/c4ta06228k ◽

2015 ◽

Vol 3 (7) ◽

pp. 3968-3974 ◽

Cited By ~ 14

Author(s):

Chi-Feng Huang ◽

Jen-Yun Chang ◽

Sin-Hong Huang ◽

Kuan-Yi Wu ◽

Jyun-Fong Jheng ◽

...

Keyword(s):

Solar Cell ◽

Structural Analysis ◽

Polymer Solar Cell ◽

Solar Cell Efficiency ◽

Cell Efficiency ◽

Morphological Studies ◽

Crystalline Nature ◽

Conjugated Copolymer

Structural analysis of PTh4FBT suggested that the highly crystalline nature of PTh4FBT is related to its zero c-shift co-facial packing.

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CdTe-Based Thin Film Solar Cells: Past, Present and Future

Energies ◽

10.3390/en14061684 ◽

2021 ◽

Vol 14 (6) ◽

pp. 1684

Author(s):

Alessandro Romeo ◽

Elisa Artegiani

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Open Circuit ◽

Early Years ◽

Solar Cell Efficiency ◽

Cell Efficiency

CdTe is a very robust and chemically stable material and for this reason its related solar cell thin film photovoltaic technology is now the only thin film technology in the first 10 top producers in the world. CdTe has an optimum band gap for the Schockley-Queisser limit and could deliver very high efficiencies as single junction device of more than 32%, with an open circuit voltage of 1 V and a short circuit current density exceeding 30 mA/cm2. CdTe solar cells were introduced at the beginning of the 70s and they have been studied and implemented particularly in the last 30 years. The strong improvement in efficiency in the last 5 years was obtained by a new redesign of the CdTe solar cell device reaching a single solar cell efficiency of 22.1% and a module efficiency of 19%. In this paper we describe the fabrication process following the history of the solar cell as it was developed in the early years up to the latest development and changes. Moreover the paper also presents future possible alternative absorbers and discusses the only apparently controversial environmental impacts of this fantastic technology.

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Conventional polymer solar cells with power conversion efficiencies increased to >9% by a combination of methanol treatment and an anionic conjugated polyelectrolyte interface layer

RSC Advances ◽

10.1039/c4ra08904a ◽

2014 ◽

Vol 4 (92) ◽

pp. 50988-50992 ◽

Cited By ~ 11

Author(s):

Tao Yuan ◽

Dong Yang ◽

Xiaoguang Zhu ◽

Lingyu Zhou ◽

Jian Zhang ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Thin Layer ◽

Polymer Solar Cell ◽

Polymer Solar Cells ◽

Power Conversion ◽

Interface Layer ◽

Conjugated Polyelectrolyte ◽

Methanol Treatment ◽

Conversion Efficiencies

The power conversion efficiency of a PTB7:PC71BM polymer solar cell was improved up to 9.1% by a combination of methanol treatment followed by conjugation of a water- or alcohol-soluble polyelectrolyte thin layer.

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Junction Configuration Effects on the Photovoltaic Parameters of a-Si/CZTS Solar Cells

10.20944/preprints202201.0163.v1 ◽

2022 ◽

Author(s):

H. Bitam ◽

B. Hadjoudja ◽

Beddiaf Zaidi ◽

C. Shakher ◽

S. Gagui ◽

...

Keyword(s):

Renewable Energy ◽

Solar Cells ◽

Solar Cell ◽

Open Circuit Voltage ◽

Open Circuit ◽

Photovoltaic Devices ◽

Solar Cell Efficiency ◽

Cell Efficiency ◽

Reported Study ◽

Stated Problem

Due to increased energy intensive human activities resulting accelerated demand for electric power coupled with occurrence of natural disasters with increased frequency, intensity, and duration, it becomes essential to explore and advance renewable energy technology for sustainability of the society. Addressing the stated problem and providing a radical solution has been attempted in this study. To harvest the renewable energy, among variety of solar cells reported, a composite a-Si/CZTS photovoltaic devices has not yet been investigated. The calculated parameters for solar cell based on the new array of layers consisting of a-Si/CZTS are reported in this study. The variation of i) solar cell efficiency as a function of CZTS layer thickness, temperature, acceptor, and donor defect concentration; ii) variation of the open circuit current density as a function of temperature, open circuit voltage; iii) variation of open circuit voltage as a function of the thickness of the CZTS layer has been determined. There has been no reported study on a-Si/CZTS configuration-based solar cell, analysis of the parameters, and study to address the challenges imped efficiency of the photovoltaic device and the same has been discussed in this work. The value of the SnO2/a-Si/CZTS solar cells obtained from the simulation is 23.9 %.

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Thin‐film solar cells exceeding 22% solar cell efficiency: An overview on CdTe-, Cu(In,Ga)Se2-, and perovskite-based materials

Applied Physics Reviews ◽

10.1063/1.5061809 ◽

2018 ◽

Vol 5 (4) ◽

pp. 041602 ◽

Cited By ~ 41

Author(s):

Michael Powalla ◽

Stefan Paetel ◽

Erik Ahlswede ◽

Roland Wuerz ◽

Cordula D. Wessendorf ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Thin Film Solar Cells ◽

Solar Cell Efficiency ◽

Cell Efficiency

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Improving the all-polymer solar cell performance by adding a narrow bandgap polymer as the second donor

RSC Advances ◽

10.1039/d0ra06143c ◽

2020 ◽

Vol 10 (63) ◽

pp. 38344-38350

Author(s):

Kai Wang ◽

Sheng Dong ◽

Xudong Chen ◽

Ping Zhou ◽

Kai Zhang ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Polymer Solar Cell ◽

Polymer Solar Cells ◽

Cell Performance ◽

Solar Cell Performance ◽

Narrow Bandgap

Ternary all-polymer solar cells are fabricated using an N2200 acceptor and two donor polymers (PF2 and PM2) with complementary absorption.

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Water-soluble ZnSe/ZnS:Mn/ZnS quantum dots convert UV to visible light for improved Si solar cell efficiency

Journal of Materials Chemistry C ◽

10.1039/d0tc04580b ◽

2021 ◽

Author(s):

Hisaaki Nishimura ◽

Takaya Maekawa ◽

Kazushi Enomoto ◽

Naoteru Shigekawa ◽

Tomomi Takagi ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Solar Cell ◽

Visible Light ◽

Solar Spectrum ◽

Water Soluble ◽

Solar Cell Efficiency ◽

Cell Efficiency ◽

Si Solar Cell ◽

Si Solar Cells

The sensitivity of Si solar cells to the UV portion of the solar spectrum is low, and must be increased to further improve their efficiencies.

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Self-assembled propylammonium cations at grain boundaries and the film surface to improve the efficiency and stability of perovskite solar cells

Journal of Materials Chemistry A ◽

10.1039/c9ta01755k ◽

2019 ◽

Vol 7 (41) ◽

pp. 23739-23746 ◽

Cited By ~ 11

Author(s):

Chengbin Fei ◽

Meng Zhou ◽

Jonathan Ogle ◽

Detlef-M. Smilgies ◽

Luisa Whittaker-Brooks ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Grain Boundary ◽

Grain Boundaries ◽

Perovskite Solar Cells ◽

Film Surface ◽

Solar Cell Efficiency ◽

Cell Efficiency ◽

Large Size ◽

Moisture Stability

Large size cation (PA) was introduced into the grain boundary and film surface of the 3D perovskite to improve the solar cell efficiency and moisture stability.

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