Solution-Processed rGO/AgNPs/rGO Sandwich Structure as a Hole Extraction Layer for Polymer Solar Cells

We found that inserting silver nanoparticles (AgNPs) between two layers of reduced grapheme oxide (rGO) has an effect on tailoring the work function of rGO. The utilization of rGO/AgNPs/rGO sandwich structure as the hole extraction layer in polymer solar cells is demonstrated. Solution-processable fabrication of this sandwich structure at the ITO/active layer interface facilitates the extraction of hole from active layer into ITO anode because of lowering the barrier level alignment at the interface. It results in an improvement of the short circuit current density and the overall photovoltaic performance.

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Improvement of short circuit current density by intermolecular interaction between polymer backbones for polymer solar cells

Polymer Journal ◽

10.1038/pj.2016.104 ◽

2016 ◽

Vol 49 (1) ◽

pp. 177-187 ◽

Cited By ~ 3

Author(s):

Tae Ho Lee ◽

Min Hee Choi ◽

Sung Jae Jeon ◽

Seung Jun Nam ◽

Yong Won Han ◽

...

Keyword(s):

Solar Cells ◽

Intermolecular Interaction ◽

Current Density ◽

Polymer Solar Cells ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density

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Fabrication of Hybrid Polymer Solar Cells By Inverted Structure Based on P3HT:PCBM Active Layer

Jurnal Elektronika dan Telekomunikasi ◽

10.14203/jet.v17.13-18 ◽

2017 ◽

Vol 17 (1) ◽

pp. 13

Author(s):

Shobih Shobih ◽

Rizky Abdillah ◽

Erlyta Septa Rosa

Keyword(s):

Solar Cells ◽

Active Layer ◽

Bulk Heterojunction ◽

Polymer Solar Cells ◽

Short Circuit ◽

Sol Gel ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Open Circuit ◽

Hybrid Polymer

Hybrid polymer solar cell has privilege than its conventional structure, where it usually has structure of (ITO/PEDOT:PSS/Active Layer/Al). In humid environment the PEDOT:PSS will absorb water and hence can easily etch the ITO. Therefore it is necessary to use an alternative method to avoid this drawback and obtain more stable polymer solar cells, namely by using hybrid polymer solar cells structure with an inverted device architecture from the conventional, by reversing the nature of charge collection. In this paper we report the results of the fabrication of inverted bulk heterojunction polymer solar cells based on P3HT:PCBM as active layer, utilizing ZnO interlayer as buffer layer between the ITO and active layer with a stacked structure of ITO/ZnO/P3HT:PCBM/PEDOT:PSS/Ag. The ZnO interlayer is formed through short route, i.e. by dissolving ZnO nanoparticles powder in chloroform-methanol solvent blend rather than by sol-gel process. Based on the measurement results on electrical characteristics of inverted polymer solar cells under 500 W/m2 illumination and AM 1.5 direct filter at room temperature, cell with annealing process of active layer at 110 °C for 10 minutes results in higher cell performance than without annealing, with an open-circuit voltage of 0.21 volt, a short-circuit current density of 1.33 mA/cm2 , a fill factor of 43.1%, and a power conversion efficiency of 0.22%. The low cell’s performance is caused by very rough surface of ZnO interlayer.

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Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells

Advanced Materials ◽

10.1002/adma.201103006 ◽

2011 ◽

Vol 23 (40) ◽

pp. 4636-4643 ◽

Cited By ~ 1777

Author(s):

Zhicai He ◽

Chengmei Zhong ◽

Xun Huang ◽

Wai-Yeung Wong ◽

Hongbin Wu ◽

...

Keyword(s):

Solar Cells ◽

Current Density ◽

Fill Factor ◽

Open Circuit Voltage ◽

Polymer Solar Cells ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Open Circuit

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The design of highly efficient polymer solar cells with outstanding short-circuit current density based on small band gap electron acceptor

Dyes and Pigments ◽

10.1016/j.dyepig.2017.12.017 ◽

2018 ◽

Vol 150 ◽

pp. 363-369 ◽

Cited By ~ 11

Author(s):

Danyang Ma ◽

Shiyu Feng ◽

Zhe Zhang ◽

Cuihong Li ◽

Shouke Yan ◽

...

Keyword(s):

Solar Cells ◽

Band Gap ◽

Electron Acceptor ◽

Current Density ◽

Polymer Solar Cells ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Highly Efficient ◽

Small Band

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Short-circuit current density improvement of inverted polymer solar cells using PbPc to enhance photon absorption over 600nm

Solar Energy Materials and Solar Cells ◽

10.1016/j.solmat.2010.08.017 ◽

2010 ◽

Vol 94 (12) ◽

pp. 2451-2454 ◽

Cited By ~ 13

Author(s):

Liang Shen ◽

Yang Xu ◽

Xindong Zhang ◽

Fanxu Meng ◽

Shengping Ruan ◽

...

Keyword(s):

Solar Cells ◽

Current Density ◽

Polymer Solar Cells ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Photon Absorption ◽

Inverted Polymer Solar Cells

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An efficient method to achieve a balanced open circuit voltage and short circuit current density in polymer solar cells

Journal of Materials Chemistry A ◽

10.1039/c6ta02298g ◽

2016 ◽

Vol 4 (21) ◽

pp. 8291-8297 ◽

Cited By ~ 34

Author(s):

Dongfeng Dang ◽

Pei Zhou ◽

Linrui Duan ◽

Xichang Bao ◽

Renqiang Yang ◽

...

Keyword(s):

Solar Cells ◽

Current Density ◽

Efficient Method ◽

Open Circuit Voltage ◽

Polymer Solar Cells ◽

Short Circuit ◽

Energy Levels ◽

Short Circuit Current ◽

Short Circuit Current Density ◽

Open Circuit

Good light harvesting properties and matched energy levels as well as enhanced Jsc value and high Voc value in solar cells were achieved simultaneously by construction of the D–A–π–A type regular terpolymers of PIDT-DTQ-TT, finally leading to the maximum PCE value of 6.63% in PSCs.

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A new polymer donor for efficient polymer solar cells: simultaneously realizing high short-circuit current density and transparency

Journal of Materials Chemistry A ◽

10.1039/c8ta05207g ◽

2018 ◽

Vol 6 (30) ◽

pp. 14700-14708 ◽

Cited By ~ 14

Author(s):

Hang Yang ◽

Yue Wu ◽

Yan Zou ◽

Yingying Dong ◽

Jianyu Yuan ◽

...

Keyword(s):

Solar Cells ◽

Current Density ◽

Polymer Solar Cells ◽

Short Circuit ◽

Short Circuit Current ◽

Short Circuit Current Density

A new polymer donor is developed for efficient polymer solar cells which can simultaneously achieve high short-circuit current density and transparency.

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The Effect of Graphene/Ag Nanoparticles Layer on the Performances of Organic Solar Cells

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.953-954.1067 ◽

2014 ◽

Vol 953-954 ◽

pp. 1067-1071 ◽

Cited By ~ 1

Author(s):

Cheng Fang Ou ◽

Syue Yan Chen

Keyword(s):

Active Layer ◽

Current Density ◽

Ag Nanoparticles ◽

Fill Factor ◽

Cell Structure ◽

Short Circuit ◽

Photovoltaic Performance ◽

Weight Ratio ◽

Short Circuit Current ◽

Short Circuit Current Density

Graphene/Ag nanoparticles (GAg) were fabricated via a facile method, employing graphite oxide as a precursor of graphene (GNS), AgNO3 as a precursor of Ag nanoparticles, and sodium citrate as a reducing and stabilizing agent. We synthesized three kinds of GAg and denominated as GAg-1、GAg-2 and GAg-3. Graphene exhibits good electron conductivity, thermal conductivity, chemical stability and mechanical strength. We investigated the effect of inserting Graphene/Ag nanoparticles between hole transfer layer (HTL) of poly (ethylene dioxythiophene) (PEDOT)-polystyrene sulfonic acid (PSS) (PEDOT:PSS) and active layer (P3HT:PCBM =1:1 weight ratio) on the characteristics of polymer solar cell. The cell structure was ITO/PEDOT:PSS/GAg/P3HT:PCBM/Ca/Al. The concentration of Graphene/Ag nanoparticles solution was 2.0 mg/ml and the GAg nanoparticles layer was coated by spin-coating at 6000 rpm. We studied the effect of GAg layer addition on the photovoltaic performance. We used the UV-Vis, SPM, FE-SEM and solar simulator to measure the absorbance, roughness, surface morphology, and power conversion efficiency (PCE), respectively. From these results, we found that the short circuit current density (Jsc), fill factor (FF) and PCE of the cells with GNS or GAg were always higher than those of cell without GNS or GAg. The cell with GAg-2 had the highest short circuit current density (Jsc) of 9.14 mA/cm2, an increase of 28.4%, highest fill factor (FF) of 0.65, an increase of 32.7% and highest PCE of 3.82%, an increase of 71.3% when compared to standard device with active layer of P3HT:PCBM =1:1. These improvements were due to the high carrier mobility of graphene.

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