Improving Air-Stability and Performance of Bulk Heterojunction Polymer Solar Cells Using Solvent Engineered Hole Selective Interlayer

Xu, Binrui; Saianand, Gopalan; Jeong, Hyun-Min; Kim, Sae-Wan; Kim, Ju-Seong; Kwon, Joong Ho; Kang, Shin‐Won

doi:10.3390/ma11071143

Cited by 18 publications

(11 citation statements)

References 60 publications

(60 reference statements)

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“…Several metal-oxide based semiconductors, such as titanium dioxide (TiO 2 ) [ 15 , 16 , 17 , 18 ], zinc oxide (ZnO) [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ], copper oxide (CuO) [ 28 , 29 , 30 , 31 ], zirconium oxide or zirconia (ZrO 2 ), cerium oxide (CeO 2 ) [ 29 ], tungsten oxide (WO 3 ), and tin oxide (SnO 2 ), have been successfully demonstrated as efficient photocatalysts for pollutant removal [ 32 , 33 , 34 ] and utilized in several other applications (energy, environment, and health) [ 35 , 36 , 37 ]. The semiconductor photocatalytic process includes irradiation of the semiconductor surface with a light having energy greater than the semiconductor’s bandgap.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in the Abatement of Hazardous Pollutants Using Photocatalytic TiO2-Based Building Materials

et al. 2020

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Titanium dioxide (TiO2) has been extensively investigated in interdisciplinary research (such as catalysis, energy, environment, health, etc.) owing to its attractive physico-chemical properties, abundant nature, chemical/environmental stability, low-cost manufacturing, low toxicity, etc. Over time, TiO2-incorporated building/construction materials have been utilized for mitigating potential problems related to the environment and human health issues. However, there are challenges with regards to photocatalytic efficiency improvements, lab to industrial scaling up, and commercial product production. Several innovative approaches/strategies have been evolved towards TiO2 modification with the focus of improving its photocatalytic efficiency. Taking these aspects into consideration, research has focused on the utilization of many of these advanced TiO2 materials towards the development of construction materials such as concrete, mortar, pavements, paints, etc. This topical review focuses explicitly on capturing and highlighting research advancements in the last five years (mainly) (2014–2019) on the utilization of various modified TiO2 materials for the development of practical photocatalytic building materials (PBM). We briefly summarize the prospective applications of TiO2-based building materials (cement, mortar, concretes, paints, coating, etc.) with relevance to the removal of outdoor/indoor NOx and volatile organic compounds, self-cleaning of the surfaces, etc. As a concluding remark, we outline the challenges and make recommendations for the future outlook of further investigations and developments in this prosperous area.

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Section: Introductionmentioning

confidence: 99%

Recent Progress in the Abatement of Hazardous Pollutants Using Photocatalytic TiO2-Based Building Materials

et al. 2020

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“…Figure 2b showed the UV-vis absorbance of as-casted P3HT and PCBTDPP thin films, along with their respective PL spectrum of P3HT. The P3HT:PCBTDPP(0.2 wt.%):PC 61 BM film exhibited significantly improved absorption potential in the broadband range with high intensity, which is attributed to the complementary absorption spectra capability of PCBTDPP film (Figure 2b) [36,37]. PCBTDPP displayed strong light-absorbing ability from 615 nm to 700 nm, and the main absorption peaks of PCBTDPP was centered at 681 nm.…”

Section: Resultsmentioning

confidence: 99%

Employing PCBTDPP as an Efficient Donor Polymer for High Performance Ternary Polymer Solar Cells

Saianand

Roy

et al. 2019

Polymers

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A compatible low-bandgap donor polymer (poly[N-90-heptadecanyl-2,7carbazole-alt-3,6-bis(thiophen-5-yl)-2,5-dioctyl-2,5-dihydropyrrolo[3,4]pyrrole-1,4-dione], PCBTDPP) was judicially introduced into the archetypal poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) photoactive system to fabricate highly efficient ternary based bulk heterojunction polymer solar cells (PSCs). The PCBTDPP ternary-based PSC with optimal loading (0.2 wt.%) displayed outstanding performance with a champion power conversion efficiency (PCE) of 5.28% as compared to the PCE (4.67%) for P3HT:PC61BM-based PSC (reference). The improved PCE for PCBTDPP ternary-based PSC can be mainly attributed to the incorporation of PCBTDPP into P3HT:PC61BM that beneficially improved the optical, morphological, electronic, and photovoltaic (PV) performance. This work instills a rational strategy for identifying components (donor/acceptor (D/A) molecules) with complementary beneficial properties toward fabricating efficient ternary PSCs.

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“…The results revealed that the device with pristine PEDOT:PSS as HTL remains with 1% of the initial efficiency after 63 days of storage, whereas the device treated with TFA retains 25% of its initial efficiency. In another example, Xu et al [187] observed a decay of 72% of PCE after just 315 h for pristine device with PEDOT:PSS as HTL, whereas a 60% decay was observed for a device with solvent additives on PEDOT:PPS/ITO front contact after 315 h.…”

Section: π-Conjugated Polymers As Htls In Organic Solar Cellsmentioning

confidence: 99%

π-Conjugated Polymers and Their Application in Organic and Hybrid Organic-Silicon Solar Cells

et al. 2022

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The evolution and emergence of organic solar cells and hybrid organic-silicon heterojunction solar cells have been deemed as promising sustainable future technologies, owing to the use of π-conjugated polymers. In this regard, the scope of this review article presents a comprehensive summary of the applications of π-conjugated polymers as hole transporting layers (HTLs) or emitters in both organic solar cells and organic-silicon hybrid heterojunction solar cells. The different techniques used to synthesize these polymers are discussed in detail, including their electronic band structure and doping mechanisms. The general architecture and principle of operating heterojunction solar cells is addressed. In both discussed solar cell types, incorporation of π-conjugated polymers as HTLs have seen a dramatic increase in efficiencies attained by these devices, owing to the high transmittance in the visible to near-infrared region, reduced carrier recombination, high conductivity, and high hole mobilities possessed by the p-type polymeric materials. However, these cells suffer from long-term stability due to photo-oxidation and parasitic absorptions at the anode interface that results in total degradation of the polymeric p-type materials. Although great progress has been seen in the incorporation of conjugated polymers in the various solar cell types, there is still a long way to go for cells incorporating polymeric materials to realize commercialization and large-scale industrial production due to the shortcomings in the stability of the polymers. This review therefore discusses the progress in using polymeric materials as HTLs in organic solar cells and hybrid organic-silicon heterojunction solar cells with the intention to provide insight on the quest of producing highly efficient but less expensive solar cells.

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Improving Air-Stability and Performance of Bulk Heterojunction Polymer Solar Cells Using Solvent Engineered Hole Selective Interlayer

Cited by 18 publications

References 60 publications

Recent Progress in the Abatement of Hazardous Pollutants Using Photocatalytic TiO2-Based Building Materials

Recent Progress in the Abatement of Hazardous Pollutants Using Photocatalytic TiO2-Based Building Materials

Employing PCBTDPP as an Efficient Donor Polymer for High Performance Ternary Polymer Solar Cells

π-Conjugated Polymers and Their Application in Organic and Hybrid Organic-Silicon Solar Cells

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