Band offset of vanadium-doped molybdenum oxide hole transport layer in organic photovoltaics

Chang, Feng Kuei; Huang, Yang-Sheng; Jeng, Jiann Shing; Chen, Jen‐Sue

doi:10.1016/j.sse.2016.04.014

Cited by 4 publications

(2 citation statements)

References 36 publications

(37 reference statements)

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“…Chang et al reported vanadium-doped MoO x films at different ammonium metavanadate concentrations. The smallest band offset (1.13 eV) between the valence band edge of V 0.05 MoO x and P3HT HOMO level favored the hole transport due to having the lowest resistance among all V-MoO x films [ 111 ]. Marchal et al reported a decrease of 3 nm in the surface roughness of MoO x HTL by adding 0.5 mol% of Zr and Sn via a combustion chemical deposition method at low temperatures [ 112 ].…”

Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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Global energy demand is increasing; thus, emerging renewable energy sources, such as organic solar cells (OSCs), are fundamental to mitigate the negative effects of fuel consumption. Within OSC’s advancements, the development of efficient and stable interface materials is essential to achieve high performance, long-term stability, low costs, and broader applicability. Inorganic and nanocarbon-based materials show a suitable work function, tunable optical/electronic properties, stability to the presence of moisture, and facile solution processing, while organic conducting polymers and small molecules have some advantages such as fast and low-cost production, solution process, low energy payback time, light weight, and less adverse environmental impact, making them attractive as hole transporting layers (HTLs) for OSCs. This review looked at the recent progress in metal oxides, metal sulfides, nanocarbon materials, conducting polymers, and small organic molecules as HTLs in OSCs over the past five years. The endeavors in research and technology have optimized the preparation and deposition methods of HTLs. Strategies of doping, composite/hybrid formation, and modifications have also tuned the optical/electrical properties of these materials as HTLs to obtain efficient and stable OSCs. We highlighted the impact of structure, composition, and processing conditions of inorganic and organic materials as HTLs in conventional and inverted OSCs.

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Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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“…Replacing the p-type a-Si:H with a doping-free transition metal oxide (TMO) such as molybdenum oxide (MoOx), is a viable alternative allowing conversion efficiency up to 23.5% [2] rivaling the traditional contact despite its lower level of optimization. Moreover, the hole selectivity capability of the MoOx is exploited for other classes of electronic devices such as organic lightemitting diodes [3], organic photovoltaic cells [4], thin-film solar cells [5]. Thus, the optimization of this hole-selective layer has been investigated over the past years, highlighting the role of the defect density of states (DOS) [6][7][8].…”

Section: Introductionmentioning

confidence: 99%