Unveiling the role of ethylene glycol for enhanced performance of PEDOT:PSS/Silicon hybrid solar cells

Srivastava, Avritti; Sharma, Raksha; Sharma, Deepak; Tawale, J.S.; Agrawal, Ved Varun; Srivastava, Sanjay K.

doi:10.1016/j.optmat.2022.112922

Cited by 16 publications

(25 citation statements)

References 62 publications

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“…The initial PEDOT:PSS solution is supplemented with a fixed amount of EG, which forms hydrogen bonds with the PSS and partially isolates the ionic interactions between PEDOT and PSS. [9,39] When the film is dipped in methanolic solution of DBSA, the DBSA replaces the PSS as the antibalance anion of the PEDOT, further separating the PEDOT and PSS ions. [40] Subsequently, when the films were again dipped in methanol for 20 s, most of PSS, EG, and DBSA were dissolved by methanol, leaving the highly conductive PEDOT with fewer PSS, which promoted the rearrangement of PEDOT crystallites and improved the conductivity of the films.…”

Section: Resultsmentioning

confidence: 99%

“…The PCE has improved rapidly over the last few years. [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] PEDOT:PSS, as a metalloid, forms Schottky junctions when in contact with n-type silicon (n-Si). [21][22][23] Its conductivity and interfacial properties with n-Si determine the hole collection characteristics of the device, which affect the efficiency of the photovoltaic performance.…”

Section: Introductionmentioning

confidence: 99%

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Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

Wang

Jiang

Zhao

et al. 2023

Physica Rapid Research Ltrs

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The performance of organic‐inorganic hybrid solar cells (HSCs) can be improved by modifying the hole transport layer (HTL). Poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) is the most active HTL material in organic‐inorganic HSCs and has been widely studied. Nevertheless, charge transfer in PEDOT:PSS is limited and inefficient due to the presence of the weak ionic conductor PSS. Moreover, the working function of the PEDOT:PSS film and the passivation of the PSS at the Si/PEDOT:PSS interface play a crucial role in carrier separation. The focus of this work is to explore a universal modification method to simultaneously achieve improved charge transport and interfacial passivation capability when using PEDOT:PSS as HTL. By combining bilayer design and simple solution posttreatment, the direct current conductivity (σdc) and work function of the HTL based on PEDOT:PSS are increased to 765 S cm−1 and 5.00 eV, respectively. The organic‐inorganic HSCs prepared using this approach achieve a photovoltaic conversion efficiency (PCE) of 12.33%, achieving a 16.54% improvement over untreated devices.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

Wang

Jiang

Zhao

et al. 2023

Physica Rapid Research Ltrs

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“…EG was added to improve the electrical conductivity of PEDOT:PSS and IPA (as a surfactant) to improve the wettability of the polymer with Si surface for conformal coating as well as to improve the electrical conductivity of the polymer layer. 18,19,24 The textured Si wafers were pre-heated for 30 s at B110 1C to grow an ultra-thin (B1.5 nm) SiO x layer. 22 The ultra-thin SiO x layer has three key roles: (i) acts as a tunnel layer for charge conduction at the interface of the organic layer and the Si substrate, (ii) provides interface passivation, and (iii) makes the Si surface hydrophilic for conformal coating of the polymer on the textured SiO x /Si substrates.…”

Section: Thin Flexible Hybrid Solar Cell Fabricationmentioning

confidence: 99%

“…The electrical conductivity of the PEDOT:PSS layer could also be tailored by adding co-solvents like dimethyl sulfoxide (DMSO), glycerol, sorbitol, ZnP, ethylene glycol (EG), graphene oxide (GO), etc. [13][14][15][16][17][18][19][20] Suitably doped PEDOT:PSS induces an inversion layer in n-Si. 18,21 Further, the PEDOT:PSS layer also passivates the surface of n-Si along with anti-reflective properties for the incident radiation.…”

Section: Introductionmentioning

confidence: 99%

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High efficiency flexible PEDOT:PSS/silicon hybrid heterojunction solar cells by employing simple chemical approaches

Sharma,

Srivastava,

Tawale

et al. 2023

J. Mater. Chem. C

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DLP‐Printable Porous Cryogels for 3D Soft Tactile Sensing

Cafiso,

Bernabei,

Lo Preti

et al. 2024

Adv Materials Technologies

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Three‐Dimensional (3D) printed porous materials hold the potential for various soft sensing applications due to their remarkable flexibility, low density, and customizable geometries. However, developing versatile and efficient fabrication methods is crucial to unlock their full potential. A novel approach is introduced by combining Digital Light Processing (DLP) 3D printing and freeze‐drying to manufacture deformable cryogels featuring intricate morphologies. Photocurable hydrogels based on Poly(3,4‐ethylenedioxythiophene)Polystyrene sulfonate (PEDOT:PSS), Polyethylene glycol Diacrylate (PEGDA) and Ethylene Glycol (EG) are successfully printed and lyophilized. In this way, porous cryogels with tailorable properties are achieved. Microporosity varies from 68% to 96%, according to the chemical composition. Ultra‐soft cryogels with a compressive modulus of 0.13MPa are fabricated by adding a reactive diluent. As a result of the cryogelation process, which effectively removes water from the hydrogels, microporous structures with details as fine as 100 µm are obtained. The achieved freedom of design is exploited to fabricate resistive force sensors with a honeycomb lattice morphology. The sensitivity and the working range of the sensors can be tailored by tuning the size of the cells, paving the way for sensors with programmable architectures that can meet diverse requirements.

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Unveiling the role of ethylene glycol for enhanced performance of PEDOT:PSS/Silicon hybrid solar cells

Cited by 16 publications

References 62 publications

Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

Structural Design and Simple Posttreatment of the Hole Transport Layer to Improve Performance of Hybrid Solar Cells

High efficiency flexible PEDOT:PSS/silicon hybrid heterojunction solar cells by employing simple chemical approaches

DLP‐Printable Porous Cryogels for 3D Soft Tactile Sensing

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