New method to measure whole-wavelength transmittance of TCO substrates for thin-film silicon solar cells

Isshiki, Masanobu; Sichanugrist, Porponth; Abe, Yusuke; Oyama, Takuji; Odaka, Hiroyuki; Konagai, Makoto

doi:10.1016/j.cap.2014.10.021

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…16) It is of interest to understand the effects of the optical property and the surface morphology of the TCO substrate on the characteristics of the thin-film solar cells. [17][18][19] In general, the device based on a highly textured TCO substrate exhibits a light trapping effect, such as the suppression of reflection loss and increased optical length, leading to the improvement of the short-circuit current density (J sc ), compared with a device with a flat surface. On the other hand, current leakage often occurs owing to the insufficient coverage of films on the textured surface.…”

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confidence: 99%

“…By attaching diiodomethane liquids, whose refractive index is close to that of FTO, to the FTO surface, the scattering caused by the surface morphology of TCO can be eliminated. 19) Therefore, the differences between the transmittance spectra obtained by the IM method are derived from the absorption of each FTO substrate. It turns out that 3-FTO has a low absorption in the measurement range of the wavelength, while the absorption of 1-FTO at wavelengths shorter than 700 nm is slightly lower than that of 2-FTO.…”

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confidence: 99%

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High-current perovskite solar cells fabricated with optically enhanced transparent conductive oxides

Mishima¹,

Hino²,

Uzu³

et al. 2017

Appl. Phys. Express

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We focused on fluorine tin oxide (FTO)-coated glass substrates for perovskite solar cells (PVSCs) and studied the effects of the optical properties and surface morphology on the short-circuit current density (Jsc). The PVSC on our FTO substrate demonstrated a gain in Jsc by 1.4–1.6 mA/cm2, compared with the PVSCs on commercial FTO substrates. This is attributed not only to the low absorption of the FTO substrate but also to the suppression of reflection loss, caused by the light trapping effect on the textured surface. Finally, the power conversion efficiency of our PVSC reached >21% with less hysteresis.

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confidence: 99%

mentioning

confidence: 99%

High-current perovskite solar cells fabricated with optically enhanced transparent conductive oxides

Mishima¹,

Hino²,

Uzu³

et al. 2017

Appl. Phys. Express

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“…최근 연구되고 있는 태양광모듈 표면 코팅소재는 오염방 지 기능 이외에도 옥외의 가혹한 온도차 및 외부 충격과 같 은 물리적 환경과 동물의 배설물 같은 화학적 환경을 견뎌 야 하며 광학적으로도 95% 이상의 투광도가 요구되고 있다 [6,7]. …”

Section: 서 론unclassified

Characteristic Analysis of Functional Nano-coating Films Synthesized according to the Annealing Ambient and Fabrication of Anti-pollution PV Module

Kang¹,

Shin²,

Kim³

et al. 2015

The Transactions of the Korean Institute of Electrical Engineer

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-We investigated that effects of annealing ambient on the characteristics of functional nano thin film synthesized on glass substrate. The functional nano thin films were annealed by using rapid thermal annealing (RTA) equipment in vacuum, oxygen and nitrogen ambient, respectively. The hardness of the functional nano thin films were measured by a standard hardness testing method (ASTM D3363) such as a H-9H, F, HB and B-6B pencil (Mitsubishi, Japan). Also, the adhesion of the functional nano thin films were measured by a standard adhesion testing method (ASTM D3359) using scotch tape (3M, Korea). The contact angle of the functional nano thin films was measured by a contact angle analyzer (Phoenix 300 Touch, S.E.O.). The optical property of functional nano thin films was measured via UV-visible spectroscopy (S-3100, Scinco).

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“…The PV module surface coating materials that are currently under research must have anti-pollution functions and must endure severe temperature differences, and harsh physical (e.g., external shock) and chemical environments (e.g., animal excrement). They must also have a light transmittance of 95% or higher [5–6]. Large solar power plants are currently being installed for power generation, and a huge amount of time and cost is required for maintenance, including surface cleaning.…”

Section: Introductionmentioning

confidence: 99%

Development of an anti-pollution coating process technology for the application of an on-site PV module

Jung

Choi

Kim

et al. 2019

Beilstein J. Nanotechnol.

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This study aimed to apply annealing processes during the coating of photovoltaic (PV) module glasses to PV modules already installed through an easy and simple procedure. Three types of annealing treatments were applied to PV module glasses, i.e., furnace, rapid thermal annealing (RTA) and torch. Among these, torch annealing, which can be easily carried out at PV module installation sites, was applied to PV module glasses using different numbers of repetition. Light transmittance, contact angle, anti-pollution characteristics, adhesion and hardness of the functional coating films after using different annealing treatment times and methods were measured, and it was confirmed that these characteristics varied depending on the annealing treatment times and methods. Through this, it was possible to optimize the process conditions that provide excellent anti-pollution characteristics and could be easily utilized at on-site PV modules.

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New method to measure whole-wavelength transmittance of TCO substrates for thin-film silicon solar cells

Cited by 8 publications

References 23 publications

High-current perovskite solar cells fabricated with optically enhanced transparent conductive oxides

High-current perovskite solar cells fabricated with optically enhanced transparent conductive oxides

Characteristic Analysis of Functional Nano-coating Films Synthesized according to the Annealing Ambient and Fabrication of Anti-pollution PV Module

Development of an anti-pollution coating process technology for the application of an on-site PV module

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