Evaluation on output parameters of the inverted organic solar cells depending on transition-metal-oxide based hole-transporting materials

Çetinkaya, Çağlar; Çokduygulular, Erman; Kınacı, Barış; Güzelçimen, Feyza; Candan, İdris; Efkere, Halil İbrahim; Özen, Yunus; Özçelik, Süleyman

doi:10.1016/j.optmat.2021.111457

Cited by 16 publications

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“…The use of MoO 3 , which provides a hole injection into active layers and acts as an anti-reflective layer for reflective metals such as Ag and Au, which have a high refractive index 43 , 44 , as HTL has become a well-established approach in inverted structures 10 , 45 – 47 . For optimal electrical performance, the thickness of MoO 3 affected the electrical parameters of the devices is preferred around 10 nm 28 .…”

Section: Resultsmentioning

confidence: 99%

“…Thus, TMOs can also act as electron transport layer (ETL) and hole transport layer (HTL) in structures where the DMD system is integrated 10 . In this way, DMD structures carry transparent contact potential and play an influential role in adjusting electrical properties with appropriate dielectric selection 28 . In addition, TMOs can also act as an anti-reflective coating in silicon and organic semiconductor-based optoelectronic devices with appropriate refractive index and band gap values.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, unlike the symmetrical DMD structures MoO 3 /Ag/MoO 3 and WO 3 /Ag/WO 3 DMD structures, the non-symmetrical MoO 3 /Ag/WO 3 structure offers a more effective use. While MoO 3 as the inner dielectric layer exhibits a good HTL layer performance in optoelectronic devices, WO 3 , which is used as the outer dielectric, attracts much attention, especially among electrochromic materials due to its chemical stability, strong adhesion to various substrates and high colouring efficiency 6 , 28 , 29 , 35 – 38 .…”

Section: Introductionmentioning

confidence: 99%

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Functional optical design of thickness-optimized transparent conductive dielectric-metal-dielectric plasmonic structure

Çetinkaya

Çokduygulular

Güzelçimen

et al. 2022

Sci Rep

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Dielectric/metal/dielectric plasmonic transparent structures play an important role in tailoring the high-optical performance of various optoelectronic devices. Though these structures are in significant demand in applications, including modification of the optical properties, average visible transmittance (AVT) and colour render index (CRI) and correlated colour temperature (CCT), obtaining optimal ones require precise thickness optimization. The overall objective of this study is the estimation of the optimal design concept of MoO3/Ag/WO3 (10/dAg/dWO3 nm) plasmonic structure. To explore the proper use in optoelectronic devices, we are motivated to conduct a rigorous optical evaluation on the thickness of layers. Having calculated optical characteristics and achieved the highest AVT of 97.3% for dAg = 4 nm and dWO3 = 6 nm by the transfer matrix method, it is quite possible to offer the potential of the structure acting as a transparent contact. Notably, the colour coordinates of the structure are x = 0.3110 and y = 0.3271, namely, it attributes very close to the Planckian locus. This superior colour performance displays that MoO3/Ag/WO3 shall undergo rapid development in neutral-colour windows and LED technologies. Structure with dAg = 6 nm and dWO3 = 16 nm exhibits the highest CRI of 98.58, thus identifying an optimal structure that can be integrated into LED lighting applications and imaging technologies. Besides the colour of structure with dAg = 4 nm and dWO3 = 8 nm is equal for D65 Standard Illuminant, the study reports that the range of CCTs are between 5000 and 6500 K. This optimization makes the structure employable as a near-daylight broadband illuminant. The study emphasizes that optimal MoO3/Ag/WO3 plasmonic structures can be used effectively to boost optoelectronic devices' performance.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Functional optical design of thickness-optimized transparent conductive dielectric-metal-dielectric plasmonic structure

Çetinkaya

Çokduygulular

Güzelçimen

et al. 2022

Sci Rep

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“…In this respect, MoO 3 also acts as a hole transport layer (HTL) in SC. Also, in our previous studies, we have structural and morphological investigations for MoO 3 thin film 31 , 32 . In order to improve the absorption by reducing the transparency in the FTO/SnO 2 /CdS/CdTe/MoO 3 SC, the photonic band gap in the structure is designed with 1D-PC, which consist of MgF 2 and MoO 3 have different dielectric constants and therefore different refractive indices.…”

Section: Resultsmentioning

confidence: 99%

“…In FTO/SnO 2 /CdTe/CdS/MoO 3 /(MgF 2 /MoO 3 ) N SC, the absorption characteristic and the wavelength dependent variation of AM 1.5G spectral irradiance ( ) should be taken into account, significantly to determine how the period number of 1D-PC will change with the that will occur in the cell. For , a calculation has to be made over the entire wavelength range of AM 1.5G spectral irradiance and the following equation is calculated 19 , 32 , 39 : where is the electron's charge and is Planck's constant.…”

Section: Methodsmentioning

confidence: 99%

Highly improved light harvesting and photovoltaic performance in CdTe solar cell with functional designed 1D-photonic crystal via light management engineering

Çetinkaya

Çokduygulular

Kınacı

et al. 2022

Sci Rep

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Photonic-based functional designs and integrations for advanced optoelectronic devices are regarded as promising candidates considering the enhancement of efficiency and tunability. With the aim to improve photovoltaic performance by increasing photon harvesting, the study presents the prominent findings of experimental and theoretical comparison of optical and electrical evaluation integrating a functionally designed one-dimension photonic crystal (1D-PC) into CdTe solar cells. Since transparency of the CdS/CdTe heterojunction based solar cell (SC) is reduced by a photonic band gap formed by (MgF2/MoO3)N 1D-PC; namely, re-harvesting is improved by increasing absorbance. The period number at resonance wavelength of 850 nm and photocurrent density ($${J}_{ph}$$ J ph ) have remarkable influence on the investigation. For four periods, the reflectance in the region of photonic band gap is sufficient for photon harvesting and saturation occurs. The photovoltaic performances are comparatively analysed for SCs with and without 1D-PC produced at optimal values. The open-circuit voltage does not change, besides, short-circuit current density and maximum-current density vary between 15.86–17.23 mA cm−2 and, 13.08–15.41 mA cm−2. Having integrated the 1D-PC into the structure, it is concluded that the FF and power conversion efficiency increase from 55.27 to 63.35% with an improvement of 15.91% and, from 8.26 to 10.47% with an improvement of 21.10%.

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Anode interfacial modification for non‐fullerene polymer solar cells: Recent advances and prospects

Ahmad

Liang

Fan

et al. 2022

InfoMat

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Recently, the power conversion efficiency (PCE) of single-junction non-fullerene polymer solar cells (NF-PSCs) has surpassed 19% due to the fast development of novel donor polymers, NF-acceptors, device engineering, and interlayer materials.The anode interlayer (AIL) plays a vital role in improving the efficiency and stability of PSCs. The challenges and opportunities in this research area encourage researchers to pursue great innovation in developing new materials and strategies for highly efficient NF-PSCs. This review summarizes the recent development of AIL materials and their modification strategies in single-junction NF-PSCs. Firstly, a brief introduction, key functions, basic requirements, and peculiar features of AILs when employed in NF-PSCs are discussed. Then, the impact of AIL materials (including organic, inorganic, and hybrid materials) on the PCE and the stability of NF-PSCs are described. Afterward, the fabrication of large-area devices and related issues are highlighted. The summary and the future challenges regarding efficient AIL are summarized in the last section of this review.

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Evaluation on output parameters of the inverted organic solar cells depending on transition-metal-oxide based hole-transporting materials

Cited by 16 publications

References 40 publications

Functional optical design of thickness-optimized transparent conductive dielectric-metal-dielectric plasmonic structure

Functional optical design of thickness-optimized transparent conductive dielectric-metal-dielectric plasmonic structure

Highly improved light harvesting and photovoltaic performance in CdTe solar cell with functional designed 1D-photonic crystal via light management engineering

Anode interfacial modification for non‐fullerene polymer solar cells: Recent advances and prospects

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