scholarly journals Hole Transfer Layer Engineering for CdTe Nanocrystal Photovoltaics with Improved Efficiency

Nanomaterials ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 1348 ◽  
Author(s):  
Yasi Jiang ◽  
Yiyang Pan ◽  
Wanhua Wu ◽  
Kaiying Luo ◽  
Zhitao Rong ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Annealing Temperature ◽  
Transfer Layer ◽  
Inverted Structure ◽  
Solution Processed ◽  
Hole Transfer ◽  
Carrier Recombination ◽  
Cdte Nanocrystal ◽  
Contact Electrode

Interface engineering has led to significant progress in solution-processed CdTe nanocrystal (NC) solar cells in recent years. High performance solar cells can be fabricated by introducing a hole transfer layer (HTL) between CdTe and a back contact electrode to reduce carrier recombination by forming interfacial dipole effect at the interface. Here, we report the usage of a commercial product 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (Spiro) as a hole transfer layer to facilitate the hole collecting for CdTe nanocrystal solar cells. It is found that heat treatment on the hole transfer layer has significant influence on the NC solar cells performance. The Jsc, Voc, and power conversion efficiency (PCE) of NC solar cells are simultaneously increased due to the decreased contact resistance and enhanced built-in electric field. We demonstrate solar cells that achieve a high PCE of 8.34% for solution-processed CdTe NC solar cells with an inverted structure by further optimizing the HTL annealing temperature, which is among the highest value in CdTe NC solar cells with the inverted structure.

High-performance metal oxide-free inverted perovskite solar cells using poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) as the hole transport layer

2018 ◽  
Vol 6 (26) ◽  
pp. 6975-6981 ◽  
Author(s):  
Chongyang Xu ◽  
Zhihai Liu ◽  
Eun-Cheol Lee
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Transfer Layer ◽  
Hole Transfer

A poly(bis(4-phenyl)(2,4,6-trimethylphenyl)amine) hole transfer layer was used to enhance the performance and lifetime of metal oxide-free inverted perovskite solar cells.

Efficient Defect Passivation with Niacin for High-Performance and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Jing Ren ◽  
Shurong Wang ◽  
Jianxing Xia ◽  
Chengbo Li ◽  
Lisha Xie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Trap States ◽  
Carrier Recombination ◽  
Defect Passivation ◽  
Recombination Centers ◽  
Charge Carrier Recombination ◽  
Halide Perovskite

Defects, inevitably produced in the solution-processed halide perovskite films, can act as charge carrier recombination centers to induce severe energy loss in perovskite solar cells (PSCs). Suppressing these trap states...

scholarly journals Solution-Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Juanyong Wan ◽  
Yonggao Xia ◽  
Junfeng Fang ◽  
Zhiguo Zhang ◽  
Bingang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Work Function ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Electrical Stability ◽  
Solution Processed ◽  
Good Thermal Stability ◽  
Transparent Conducting ◽  
High Flexibility

AbstractNonfullerene organic solar cells (OSCs) have achieved breakthrough with pushing the efficiency exceeding 17%. While this shed light on OSC commercialization, high-performance flexible OSCs should be pursued through solution manufacturing. Herein, we report a solution-processed flexible OSC based on a transparent conducting PEDOT:PSS anode doped with trifluoromethanesulfonic acid (CF3SO3H). Through a low-concentration and low-temperature CF3SO3H doping, the conducting polymer anodes exhibited a main sheet resistance of 35 Ω sq−1 (minimum value: 32 Ω sq−1), a raised work function (≈ 5.0 eV), a superior wettability, and a high electrical stability. The high work function minimized the energy level mismatch among the anodes, hole-transporting layers and electron-donors of the active layers, thereby leading to an enhanced carrier extraction. The solution-processed flexible OSCs yielded a record-high efficiency of 16.41% (maximum value: 16.61%). Besides, the flexible OSCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85 °C, demonstrating a high flexibility and a good thermal stability.

Efficient Hole Transfer via CsPbBr3 Quantum Dots Doping toward High‐performance Organic Solar Cells

Solar RRL ◽  
2021 ◽  
Author(s):  
Weiqiang Miao ◽  
Chuanhang Guo ◽  
Donghui Li ◽  
Teng Li ◽  
Pang Wang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Hole Transfer ◽  
Cspbbr3 Quantum Dots

High-performance asymmetric small molecular donor materials based on indenothiophene for solution-processed organic solar cells

2019 ◽  
Vol 31 ◽  
pp. 27-33 ◽  
Author(s):  
Hua Tan ◽  
Baoqi Wu ◽  
Jun Zhang ◽  
Qiang Tao ◽  
Wenhong Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Solution Processed

Solution processed black phosphorus quantum dots for high performance silicon/organic hybrid solar cells

2018 ◽  
Vol 217 ◽  
pp. 92-95 ◽  
Author(s):  
Qingduan Li ◽  
Jianwei Yang ◽  
Chun Huang ◽  
Shaozhong Zeng ◽  
Jizhao Zou ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Performance ◽  
Black Phosphorus ◽  
Hybrid Solar Cells ◽  
Solution Processed ◽  
Organic Hybrid ◽  
Black Phosphorus Quantum Dots

scholarly journals High‐Performance Ternary Organic Solar Cells with Morphology‐Modulated Hole Transfer and Improved Ultraviolet Photostability

Solar RRL ◽  
2020 ◽  
Vol 4 (7) ◽  
pp. 2000165
Author(s):  
Kang-Ning Zhang ◽  
Zhi-Nan Jiang ◽  
Tong Wang ◽  
Meng-Si Niu ◽  
Lin Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Hole Transfer
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