- 标题
- 摘要
- 关键词
- 实验方案
- 产品
-
Mo <sub/>1.33</sub> C MXene-assisted PEDOT:PSS hole transport layer for high performance bulk-heterojunction polymer solar cells
摘要： Here we report the usage of two-dimensional MXene, Mo1.33C-assisted PEDOT:PSS as an efficient hole transport layer (HTL) to construct high efficiency polymer solar cells. The composite HTLs are prepared by mixing Mo1.33C and PEDOT:PSS aqueous solution. The conventional devices based on Mo1.33C:PEDOT:PSS exhibits average power conversion efficiency (PCE) of 9.2%, which shows 13% enhancement comparing to the reference devices. According to the results from hole mobilities, charge extraction probabilities, steady-state photoluminescence and atomic force microscope, the enhanced PCE can be ascribed to the improved charge transport and extraction properties of HTL, along with the morphological improvement of the active layer on top. This work clearly demonstrates the feasibility to combine advantages of Mo1.33C MXene and PEDOT:PSS as the promising HTL in organic photovoltaics.
关键词： PEDOT:PSS,polymer solar cells,Mo1.33C:PEDOT:PSS,hole transport layer,MXene nanosheet
更新于2025-09-12 10:27:22
-
Electrical property modified hole transport layer (PEDOT:PSS) enhance the efficiency of perovskite solar cells: hybrid co-solvent post-treatment
摘要： Poly(3,4-ethylenedioxythiphene):poly(styrenesulfonate) (PEDOT:PSS) layer as a hole transport layer (HTL) plays a key role in efficient hole extraction and transportation of the inverted planar perovskite solar cells (PSCs). However, the insulating nature of PSS lead to lower electrical property of the PEDOT:PSS film, which impedes transferring hole and results in a low photocurrent of the PSCs. In this work, dimethylformamide (DMF), methanol and their mixture solvents (co-solvent) were employed to treat the PEOT:PSS thin film after deposition with different methods to enhance the film’s electrical conductivity. Electrical conductivity of the PEDOT:PSS films was increased from 10-3 S.cm-1 to ~102 S.cm-1 after the co-solvents treatment. Using the highest conductivity co-solvent treated PEDOT:PSS thin film as the HTL in a perovskite solar cell, the power conversion efficiency (PCE) of the device has been measured improved by 17.5% as compared with that of the control device with the untreated PEDOT:PSS film as the HTL. This result shows that the hybrid co-solvent post-treatment is a simple and feasible way to modified the electrical properties of the PEDOT:PSS film as the HTL for high efficient PSCs and other thin film electronic and optoelectronic devices.
关键词： Perovskite solar cells,PEDOT:PSS,Hole transporting layer,Solvent treatment,Conductivity
更新于2025-09-12 10:27:22
-
Resistive Water Sensors Based on PEDOT:PSS- <i>g</i> -PEGME Copolymer and Laser Treatment for Water Ingress Monitoring Systems
摘要： Water sensors are a type of level sensor that can be used in various applications requiring the sensing of water levels, such as in dams, nuclear power plants, water pipes, water tanks, and dehumidifiers. In particular, water sensors in water ingress monitoring systems (WIMS) protect lives and property from disasters caused by water leakage and flooding. Here, a resistive water sensor for WIMS that incorporates poly(3,4-ethylenedioxythinophene):poly(styrene sulfonate) (PEDOT:PSS) grafted with poly(ethylene glycol) methyl ether (PEGME) (PEDOT:PSS-g-PEGME copolymer) as high-conductivity electrodes and laser-treated PEDOT:PSS-g-PEGME copolymer as the low-conductivity resistive component is reported. The configuration of the water sensor is modeled as two parallel resistors (Rlaser treated PEDOT:PSS || Rwater) when water comes into contact with the sensor surface. The two-resistor configuration exhibits a better performance in comparison with single-resistor configurations comprising only PEDOT:PSS-g-PEGME copolymer or laser-treated PEDOT:PSS-g-PEMGE copolymer. Moreover, PEDOT:PSS-g-PEGME copolymer is applied to the sensor to improve the stability of PEDOT:PSS in water. We demonstrate that the sensor can detect the water level in real time with high sensitivity and accuracy, and thus has potential in applications for monitoring water-related hazards.
关键词： PEDOT:PSS,resistive water sensor,laser treatment,water resistance,water ingress monitoring systems
更新于2025-09-12 10:27:22
-
Role of Continuous Spray Pyrolyzed synthesized MoO3 nanorods in PEDOT:PSS matrix by electric field assisted spray deposition for organic photovoltaics
摘要： Organic-inorganic hybrid solution composing of Continuous Spray Pyrolyzed (CoSP) synthesized molybdenum trioxide (MoO3) nanorods in poly(3,4-ethylene dioxy thiophene): poly(styrenesulfonate) (PEDOT:PSS) were developed to form an effective interconnecting layer for use as a hybrid hole transport layer (HTL) in organic solar cells (OSCs). Compared to that of pristine PEDOT:PSS based OSCs, the PEDOT:PSS-MoO3 based OSC demonstrates a noticeable advancement in power conversion efficiency (PCE), current density, and fill factor due to enhanced the wettability and conductivity of the composite HTL for efficient hole injection. The effect of the applied DC voltage (500V and 1000V) to the nozzle during the spray deposition of hybrid PEDOT:PSS-MoO3 HTL on efficient operation of the OSCs was systematically investigated. The surface roughness, compact morphology and hence the electrical conductivity of hybrid HTL are significantly influenced by the applied DC voltages during deposition of film. It is attributed to coulombic fission for better atomization of spray and generating ultrafine homogeneous droplets in corona cone, which fabricate a uniform film over a larger area. Moreover, rise in the work function was also noticed possibly due to the nanostructure formation due to MoO3 nanorods. The use of 500V and 1000V during fabrication of the PEDOT:PSS-MoO3 HTL resulted in the ambient condition optimized PTB7:PC71BM based OSCs reaching highest PCE of 4.68% and 5.11%, respectively. This is due to superior interface connection between hybrid HTL and photoactive layer leading to improved charge collection efficiency.
关键词： hybrid PEDOT:PSS:MoO3 HTL,spray deposition,electric field,organic solar cells
更新于2025-09-12 10:27:22
-
Organogels Based on PEDOT:PSS and Carbon‐dots for Efficient Hole Transport in Organic Photovoltaics
摘要： Organic photovoltaic devices (OPVs) have received great attention in the past decades for next-generation renewable energy sources due to the low production cost and ?exible structure. The structure of OPVs is commonly composed of anode, hole transport layer (HTL), photoactive layer, and cathode. In general, an electrically conducting polymer such as poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is used as the HTL to improve interfacial properties between the anode and photoactive layer. The PEDOT:PSS consists of hydrophobic and conductive PEDOT-chains doped with hygroscopic insulator PSS, resulting in poor electrical properties. It has been known that treatment of PEDOT:PSS with polar organic solvent or acid and annealing caused the conformational change and thus improved the electrical conductivity. However, controlling the orientation and shape of the PEDOT in PEDOT:PSS is still a challenge for improving the electrical percolation pathway. Recently, the electrical conductivity of PEDOT:PSS has been enhanced by inducing the gelation of PEDOT through self-assembly with graphene oxide (GO) and/or graphene quantum dots (GQDs). Although the gelation of PEDOT:PSS improved its mechanical, thermal, and electrical properties, its morphological changes and gelation mechanism in thin ?lms have not been well understood. In this letter is described the development of reticulated charge–transporting networks with enhanced electrical properties of self-assembled PEDOT:PSS organogels containing carbon-dots. Carbon-dots acted as a physical linker with PEDOT-chains in PEDOT:PSS through electrostatic interactions, resulting in the formation of a core–shell (carbon-dot@PEDOT) nanostructure. Furthermore, the blending ratio of carbon-dots and PEDOT:PSS and the gelation time affected the organogel ?lm morphology of a nanostructure which is associated with their electrical properties. The resulting carbon-dot@PEDOT:PSS organogel ?lms were applied as an HTL for typical poly(3-hexylthiophene) (P3HT): [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) bulk heterojunction (BHJ) OPVs. As a result, the power conversion ef?ciency (PCE) of OPVs was enhanced by 30% due to the improvement of the electrical percolation pathway of the PEDOT:PSS ?lms.
关键词： PEDOT:PSS,Hole transport,Carbon-dots,Organic photovoltaics,Organogel
更新于2025-09-12 10:27:22
-
Modified HTL-induced efficiency enhancement for inverted perovskite solar cells
摘要： Poly(3,4-ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) was doped by 3-(Cyclohexylamino)-2-hydroxy-1-propanesulfonic acid (CAPSO), leading to dramatic improvement of its conductivity and consequently efficiency enhancement in inverted perovskite solar cells (PSCs) based on PEDOT:PSS hole transport layer (HTL). Under the optimized CAPSO doping concentration, the conductivity of PEDOT:PSS ?lm increased by about three orders of magnitude, and this is interpreted by the weakening of the coulombic attractions between PEDOT and PSS components induced by CAPSO. CAPSO doped PEDOT:PSS (PEDOT:PSS@CAPSO) was applied as HTL of PSCs devices based on CH3NH3PbI3 layers, leading to the best power conversion efficiency (PCE) of ~38% enhanced relative to those of the corresponding reference devices based on pristine PEDOT:PSS HTL. Scanning Kelvin probe microscopy (SKPM) results show that the work function of PEDOT@CAPSO matches well with the valence band of CH3NH3PbI3 absorbers. The research demonstrates that the zwitterion modified PEDOT:PSS could act as an outstanding hole transport material for fabricating high-efficient perovskite solar cells.
关键词： CAPSO,PEDOT:PSS,perovskite solar cells,hole transport layer
更新于2025-09-12 10:27:22
-
AIP Conference Proceedings [AIP Publishing PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS: ICAM 2019 - Kerala, India (12–14 June 2019)] PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS: ICAM 2019 - Measurement of hole mobility in P3HT based photovoltaic cell using space charge limited current method
摘要： Mobility of carriers is one of the pivotal parameters characterizing any semiconducting material and it is important for organic semiconductors too. The mobility of organic semiconductors remains far less when compared to inorganic counterparts and hence attempts in the direction improvise it carries tremendous significance. This paper investigates the positive charge carriers transport properties in a bulk heterojunction organic photovoltaic cell using two different Anode Buffer Layers (PEDOT:PSS and MoO3). The method of Space Charge Limited Current (SCLC) is used to compute the hole mobilities and also the values are compared. The values obtained with PEDOT:PSS and MoO3 as HTLs are 1.043x10-4 cm2 V-1S-1 and 1.357x10-4 cm2V-1S-1 respectively. It is seen that the device with higher carrier mobility exhibits better performance.
关键词： PEDOT:PSS,hole mobility,space charge limited current,MoO3,photovoltaic cell,P3HT
更新于2025-09-12 10:27:22
-
Optimizing the component ratio of PEDOT:PSS by water rinse for high efficiency organic solar cells over 16.7%
摘要： For the state-of-the-art organic solar cells, PEDOT:PSS is the most popularly used hole transport material for the conventional structure. However, it still suffers from several disadvantages, such as low conductivity and harm to ITO due to the acidic PSS. Herein, a simple method is introduced to enhance the conductivity and remove the additional PSS by water rinsing the PEDOT:PSS films. The photovoltaic devices based on the water rinsed PEDOT:PSS present a dramatic improvement in efficiency from 15.98% to 16.75% in comparison to that of the untreated counterparts. Systematic characterization and analysis reveal that although part of the PEDOT:PSS is washed away, it still leaves a smoother film and the ratio of PEDOT to PSS is higher than before in the remaining films. It can greatly improve the conductivity and reduce the damage to substrates. This study demonstrates that finely modifying the charge transport materials to improve conductivity and reduce defeats has great potential for boosting the efficiency of organic solar cells.
关键词： PEDOT:PSS,Organic solar cell,water rinse,high efficiency
更新于2025-09-12 10:27:22
-
Screen-printed PEDOT:PSS/halloysite counter electrodes for dye-sensitized solar cells
摘要： In this work, water-based and viscous screen-printing inks composed of conducting polymer poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) and insulating halloysite nanotubes as a filler (HNTs) with different organic additives were prepared by simply homogenization process. PEDOT:PSS/HNTs inks were screen-printed onto FTO substrates and were used as counter electrodes (CEs) in dye-sensitized solar cells (DSSCs). Incorporation of HNTs leads to a significant increase in ink thermal stability evaluated by TGA. XPS results indicate that simple homogenization process of PEDOT:PSS and HNTs led to the formation of compact PEDOT:PSS/HNTs nanocomposite structure where components are linked by physical interactions. Screen-printed PEDOT:PSS/HNTs CEs with 1 wt% of HNTs reached the highest conductivity (381 S/cm). Moreover, the positive effect of HNTs filler in CEs was confirmed by electrochemical measurements (CV and EIS). DSSCs with screen-printed PEDOT:PSS/HNTs CEs have overall better photovoltaic properties with ≈15% increase in the conversion efficiency (η = 4.5%) compared to PEDOT:PSS CEs.
关键词： Screen-printing,Printed electronics,Counter electrode,Halloysite nanotubes,PEDOT:PSS,Dye-sensitized solar cells
更新于2025-09-12 10:27:22
-
Efficient and bright phosphorescent organic light-emitting diodes adopting MoO <sub/>3</sub> /PEDOT:PSS as dual hole injection layers
摘要： It has been demonstrated that high efficiency and brightness can be achieved in phosphorescent organic light-emitting diodes (PHOLEDs) by using molybdenum oxide (MoO3)/poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) as dual hole injection layers (HILs) on indium tin oxide (ITO) substrate. The dual HILs were simply fabricated by spin-coating PEDOT:PSS solution on a thin MoO3 layer deposited by vacuum thermal evaporation. This work reveals that PEDOT:PSS coating on MoO3 resulted in a smoother surface, simultaneously MoO3 lamella prevented acid corrosion of PEDOT:PSS on ITO. Meanwhile, with the insertion of PEDOT:PSS and MoO3 as HILs between anode and hole transporting layer (HTL), the energy barrier has been reduced and gave rise to effective hole injection. OLEDs with dual HILs resulted in the maximum current efficiency (CE) of 61.3 cd A?1 and maximum luminance of 112200 cd cm?2, which showed a superior performance compared to those devices with single HIL of PEDOT:PSS or MoO3. Our results proved the composition of PEDOT:PSS and MoO3 as HILs were beneficial for high performance OLEDs.
关键词： PEDOT:PSS,MoO3,dual hole injection layers
更新于2025-09-12 10:27:22