MoS2 Quantum Dots with a Tunable Work Function for High-Performance Organic Solar Cells

2016 ◽  
Vol 8 (40) ◽  
pp. 26916-26923 ◽  
Author(s):  
Wang Xing ◽  
Yusheng Chen ◽  
Xinlong Wang ◽  
Lei Lv ◽  
Xinhua Ouyang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Work Function ◽  
Organic Solar Cells ◽  
High Performance

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

Graphene quantum dots as the hole transport layer material for high-performance organic solar cells

2013 ◽  
Vol 15 (43) ◽  
pp. 18973 ◽  
Author(s):  
Miaomiao Li ◽  
Wang Ni ◽  
Bin Kan ◽  
Xiangjian Wan ◽  
Long Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Graphene Quantum Dots ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Layer Material

scholarly journals Boosting Photovoltaic Performance in Organic Solar Cells by Manipulating the Size of MoS2 Quantum Dots as a Hole-Transport Material

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1464
Author(s):  
Kwang Hyun Park ◽  
Sunggyeong Jung ◽  
Jungmo Kim ◽  
Byoung-Min Ko ◽  
Wang-Geun Shim ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Quantum Confinement Effect ◽  
Critical Role ◽  
Photovoltaic Performance ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

The design of photoactive materials and interface engineering between organic/inorganic layers play a critical role in achieving enhanced performance in energy-harvesting devices. Two-dimensional transitional dichalcogenides (TMDs) with excellent optical and electronic properties are promising candidates in this regard. In this study, we demonstrate the fabrication of size-controlled MoS2 quantum dots (QDs) and present fundamental studies of their optical properties and their application as a hole-transport layer (HTL) in organic solar cells (OSCs). Optical and structural analyses reveal that the as-prepared MoS2 QDs show a fluorescence mechanism with respect to the quantum confinement effect and intrinsic/extrinsic states. Moreover, when incorporated into a photovoltaic device, the MoS2 QDs exhibit a significantly enhanced performance (5/10-nanometer QDs: 8.30%/7.80% for PTB7 and 10.40%/10.17% for PTB7-Th, respectively) compared to those of the reference device (7.24% for PTB7 and 9.49% for PTB7-Th). We confirm that the MoS2 QDs clearly offer enhanced transport characteristics ascribed to higher hole-mobility and smoother root mean square (Rq) as a hole-extraction material. This approach can enable significant advances and facilitate a new avenue for realizing high-performance optoelectronic devices.

Constructing High-performance H3PW12O40/CoS2 Counter Electrodes for Quantum Dots Sensitized Solar Cells by Reducing the Surface Work Function of CoS2

2021 ◽  
Author(s):  
Tingting Zhang ◽  
Qiu Zhang ◽  
Yumeng Wang ◽  
Fengyan Li ◽  
Lin Xu
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Work Function ◽  
High Performance ◽  
Counter Electrode ◽  
Low Cost ◽  
Counter Electrodes ◽  
Surface Work ◽  
Sensitized Solar Cells ◽  
Surface Work Function

The preparation of low cost H3PW12O40 (PW12)/CoS2 complex is used as a counter electrode (CE) to combine with sandwich quantum dots sensitized cells (QDSSCs) composed of TiO2/CdS/CdSe/ZnS photoanode and polysulfide...

Solution-processable n-doped graphene-containing cathode interfacial materials for high-performance organic solar cells

2019 ◽  
Vol 12 (11) ◽  
pp. 3400-3411 ◽  
Author(s):  
Fei Pan ◽  
Chenkai Sun ◽  
Yingfen Li ◽  
Dianyong Tang ◽  
Yingping Zou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Work Function ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Doped Graphene ◽  
Interfacial Material ◽  
Solution Processable

Solution-processable n-doped graphene-containing cathode interfacial material with a low work function demonstrates 16.52% power conversion efficiency in organic solar cells.

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

A Facile Synthesized Polymer Featuring B‐N Covalent Bond and Small Singlet‐Triplet Gap for High‐Performance Organic Solar Cells

2021 ◽  
Vol 60 (16) ◽  
pp. 8813-8817
Author(s):  
Shuting Pang ◽  
Zhiqiang Wang ◽  
Xiyue Yuan ◽  
Langheng Pan ◽  
Wanyuan Deng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Covalent Bond

scholarly journals High performance tandem organic solar cells via a strongly infrared-absorbing narrow bandgap acceptor

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhenrong Jia ◽  
Shucheng Qin ◽  
Lei Meng ◽  
Qing Ma ◽  
Indunil Angunawela ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Power Conversion ◽  
High Power Conversion Efficiency ◽  
Device Structure ◽  
Narrow Bandgap

AbstractTandem organic solar cells are based on the device structure monolithically connecting two solar cells to broaden overall absorption spectrum and utilize the photon energy more efficiently. Herein, we demonstrate a simple strategy of inserting a double bond between the central core and end groups of the small molecule acceptor Y6 to extend its conjugation length and absorption range. As a result, a new narrow bandgap acceptor BTPV-4F was synthesized with an optical bandgap of 1.21 eV. The single-junction devices based on BTPV-4F as acceptor achieved a power conversion efficiency of over 13.4% with a high short-circuit current density of 28.9 mA cm−2. With adopting BTPV-4F as the rear cell acceptor material, the resulting tandem devices reached a high power conversion efficiency of over 16.4% with good photostability. The results indicate that BTPV-4F is an efficient infrared-absorbing narrow bandgap acceptor and has great potential to be applied into tandem organic solar cells.

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