Resolution improvement in Haacke's figure of merit for transparent conductive films

Cisneros-Contreras, Ivan Ricardo; Muñoz-Rosas, Ana Luz; Rodríguez-Gómez, Arturo

doi:10.1016/j.rinp.2019.102695

Cited by 49 publications

(26 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, values of n equal to 2, 4, 8 or 10 place the maximum at visible transmittances of 61%, 78%, 88% or 90%, respectively. Recent studies have pointed out that the resolution of Φ H decreases when the transmittance power n increases [45], owing to the high predominance of optical characteristics that vary in a relatively small range (0T V 1). However, the resolution greatly improves when the power is charged in another way:…”

Section: Comparison Of the Obtained Thin Film Materials As P-type Tcosmentioning

confidence: 99%

See 1 more Smart Citation

Comparing metal oxide thin films as transparent p-type conductive electrodes

Guillén

Herrero

2019

Mater. Res. Express

View full text Add to dashboard Cite

The development of transparent and p-type conductive layers remains a challenge to achieve more efficient hole collection and to combine with the most common n-type counterparts into transparent p-n junctions. Here, several candidates based on abundant materials: Cu 2 O, NiO and SnO have been prepared, characterized and comparatively evaluated. Thin-film deposition methods (evaporation and sputtering) have been used along with thermal treatments (oxidation and sulfurization) to maximize the transmittance and conductivity for each material. The highest quality is achieved by Cu x (S, O) layers prepared by sulfurization of Cu 2 O at 250°C. Besides, the NiO films obtained by reactive sputtering at room temperature have a good quality to be applied on heat-sensitive substrates.

show abstract

Section: Comparison Of the Obtained Thin Film Materials As P-type Tcosmentioning

confidence: 99%

“…giving a new figure of merit named H-HR (Haacke high resolution) [45]. It should be noted that a same film thickness maximizes both Φ H and Φ H-HR functions, since for the last expression it is also…”

Section: Comparison Of the Obtained Thin Film Materials As P-type Tcosmentioning

confidence: 99%

Comparing metal oxide thin films as transparent p-type conductive electrodes

Guillén

Herrero

2019

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…To date, TCO films have been extensively applied in a number of applications such as solar cells, diodes, photodetectors, etc. owing to their attractive optical and electrical behavior [1][2][3][4]. Several TCO films containing impurities such as ZnO, In 2 O 3 , and SnO 2 have been investigated [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

In-Depth Optical Analysis of Zn(Al)O Mixed Metal Oxide Film-Based Zn/Al-Layered Double Hydroxide for TCO Application

Salih¹,

Ramizy

Aldaghri

et al. 2022

Crystals

View full text Add to dashboard Cite

In this article, an in-depth optical investigation of Zn(Al)O-mixed metal oxide (MMO) film using Zn/Al-layered double hydroxide (LDH) was elucidated through co-precipitation and spin coating techniques. The field emission scanning electron microscopy (FE-SEM) analysis revealed the occurrence of a vertically aligned sheet-like structure with a thickness of 60 nm for pristine LDH, which further reduced to 45 nm after calcination at 300 °C. Additionally, pristine LDH showed multiple optical bandgaps of 5.18, 3.6, and 3.2 eV. Moreover, a good agreement of the obtained optical bandgaps was attained between both utilized methods, ultraviolet-visible light (UV-Vis), and photoluminescence (PL) spectroscopies. The optical bandgap decreased at higher calcination temperatures, which indicates the active role of the applied post-fabrication process on the optical profile of the deposited MMO film/s. The demonstrated transmittance spectra of the deposited MMO films exhibited a transparency between 85% and 95%; this indicates the usefulness and consistency of the proposed film for transparent conductive oxide (TCO) based optoelectronic applications.

show abstract

“…[24,25] Recently, Cisneros-Contreras et al showed in their work that Haacke's figure of merit was unfortunately inefficient for TCEs with low transmittance and slightly modified the proposed equation to increase the resolution of the figure of merit by up to two orders of magnitude by assigning more importance to the transmittance against the sheet resistance. As a result, the figure of merit, named "FOM Haacke High Resolution," was defined as [26] , 1…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Cisneros‐Contreras et al showed in their work that Haacke's figure of merit was unfortunately inefficient for TCEs with low transmittance and slightly modified the proposed equation to increase the resolution of the figure of merit by up to two orders of magnitude by assigning more importance to the transmittance against the sheet resistance. As a result, the figure of merit, named “FOM Haacke High Resolution,” was defined as [ 26 ]

\begin{matrix} ϕ_{TC} = \frac{T}{{\sqrt[n]{R}}_{□}}, ([], ϕ_{TC}) = \frac{1}{{(normalΩ □^{- 1})}^{1 / n}} = {normalΩ}^{- 1 / n} \end{matrix}

with ϕ TC being the figure of merit in units of Ω −1 , where T is the transmittance at 550 nm, and R □ is the sheet resistance. Please note that n = 10 is recommended according to the authors and is used throughout this work if not stated otherwise.…”

Section: Introductionmentioning

confidence: 99%

Introduction of a Novel Figure of Merit for the Assessment of Transparent Conductive Electrodes in Photovoltaics: Exact and Approximate Form

Anand

Islam

Meitzner

et al. 2021

Advanced Energy Materials

View full text Add to dashboard Cite

Transparent conductive electrodes (TCEs) are key components of photovoltaic devices. Being transparent, they allow light to enter the device, and being conductive, they allow the photocurrent generated to be drawn into the outer electric circuit. Ideally, TCEs exhibit maximum light transmission and conductivity at the same time. However, both properties have to be balanced. Depending on the photovoltaic material system, the selection of the most suitable TCE is crucial and is assessed by so‐called figures‐of‐merit (FOM). Here, a novel and exact FOM that explicitly considers the impact on photovoltaic performance is proposed. This novel FOM exhibits several useful attributes, among them: i) proportionality to the potential power output of the photovoltaic device, ii) normalization with regard to the theoretically ultimately attainable photovoltaic performance and, thus, it provides above all iii) meaningful guidance for the development of advanced TCEs. Based on the exact FOM, the transition sheet resistance is defined as the parameter, which separates the so‐far unidentified two regimes of TCE operation: transmittance versus conductance limited. An overview of realized state‐of‐the‐art semitransparent electrodes is reassessed and compared herein. Furthermore, the TCE requirements for various photovoltaic material systems are assessed in dependence on the spectral range of their operation.

show abstract

Resolution improvement in Haacke's figure of merit for transparent conductive films

Cited by 49 publications

References 21 publications

Comparing metal oxide thin films as transparent p-type conductive electrodes

Comparing metal oxide thin films as transparent p-type conductive electrodes

In-Depth Optical Analysis of Zn(Al)O Mixed Metal Oxide Film-Based Zn/Al-Layered Double Hydroxide for TCO Application

Introduction of a Novel Figure of Merit for the Assessment of Transparent Conductive Electrodes in Photovoltaics: Exact and Approximate Form

Contact Info

Product

Resources

About