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Properties of Perovskite Solar Cells with Low Temperature Sintered SnO2 Electron Transport Layers
저온 소결 처리된 SnO2 전자전달층을 가진 페로브스카이트 태양전지의 물성
Hojun Kim, Yongwook Lee, Yeongjun Oh, Kwangbae Kim, Ohsung Song
김호준, 이용욱, 오영준, 김광배, 송오성
Korean J. Met. Mater. 2022;60(7):545-550.   Published online 2022 Jun 3
DOI: https://doi.org/10.3365/KJMM.2022.60.7.545

Abstract
This study investigated the photovoltaic properties and microstructure of perovskite solar cells (PSCs) with an ITO/SnO2/perovskite/HTL/Au electrode configuration, developed with varying sintering temperatures (100~200°C). The goal was to use SnO2 ink as the electron transport layer (ETL) by low-temperature sintering. TGA-DTA analysis was conducted to determine the optimum sintering temperature..... More

                        
Oxidation Stabilization of ZrFe Alloys in Nitrogen Gas Atmosphere
질소 5N 가스 분위기에서 다공질 ZrFe 합금의 산화 안정화
Kwangbae Kim, Saera Jin, Yesol Lim, Hyunjun Lee, Seonghoon Kim, Yunyoung Noh, Ohsung Song
김광배, 진새라, 임예솔, 이현준, 김성훈, 노윤영, 송오성
Korean J. Met. Mater. 2021;59(10):753-759.   Published online 2021 Sep 6
DOI: https://doi.org/10.3365/KJMM.2021.59.10.753

Abstract
A porous ZrFe alloy specimen was prepared as a 6 × 3 mm (diameter × thickness) disk. The reaction of the ZrFe alloy was confirmed while the whole system was maintained at a target temperature, which was increased from 150 oC to 950 oC in a 99.999% low purity nitrogen..... More

                        
Properties of Urea Added Perovskite Solar Cells according to ZrO2 Electronic Transport Layer Thicknesses
ZrO2 전자전달층 두께에 따른 우레아 첨가 페로브스카이트 태양전지의 물성
Kwangbae Kim, Ohsung Song
김광배, 송오성
Korean J. Met. Mater. 2021;59(1):67-72.   Published online 2021 Jan 5
DOI: https://doi.org/10.3365/KJMM.2021.59.1.67

Abstract
The properties of 6 mM urea added perovskite solar cells (PSCs) according to ZrO2 electron transport layer (ETL) thicknesses of 204, 221, 254, and 281 nm were examined. A solar simulator was used to characterize the photovoltaic properties of the cell. Optical microscopy and field emission scanning electron microscope were..... More

                           Cited By 1
Assessment of H2O Adsorption Characteristics Based on Zeolite Type
제올라이트 종류에 따른 수분 흡착 특성 평가
Kwangbae Kim, Yesol Lim, Eunseok kim, Saera Jin, Hyunjun Lee, Seonghoon Kim, Yunyoung Noh, Ohsung Song
김광배, 임예솔, 김은석, 진새라, 이현준, 김성훈, 노윤영, 송오성
Korean J. Met. Mater. 2020;58(7):501-506.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.501

Abstract
The properties and H2O adsorption characteristics of two types of zeolites (3A and 13X) with the same shape but different element composition were identified. These zeolites are used in gas purification processes to manufacture 9N ultra-pure inert gases for semiconductor process applications. To analyze the shape and microstructure of the..... More

                        
Effects of Thiourea Stripping of 14 Karat White Gold Alloys With the Addition of SDS Surfactant
SDS 계면활성제 첨가에 따른 14 캐럿 백색 금합금의 티오우레아 스트리핑의 효과
Ikgyu Kim, Kwangbae Kim, Ohsung Song
김익규, 김광배, 송오성
Korean J. Met. Mater. 2020;58(7):447-452.   Published online 2020 Jul 5
DOI: https://doi.org/10.3365/KJMM.2020.58.7.447

Abstract
A stripping solution with thiourea, iron(III) sulfate, and sodium dodecyl sulfate(SDS) was employed to strip Ni-based 14 karat white gold alloys, and the formation of the NiS byproduct and elimination of passivation were investigated in the presence of 0.0-0.2 g/L SDS. White gold alloy samples with a flat shape were..... More

                        
Properties of Double Electron Transport Layered Perovskite Solar Cells with Different ZrO2 Layer Thickness
이중 전자전달층 페로브스카이트 태양전지의 ZrO2층 두께에 따른 물성 연구
Hyeryeong Lee, Kwangbae Kim, Ohsung Song
이혜령, 김광배, 송오성
Korean J. Met. Mater. 2020;58(1):59-66.   Published online 2019 Dec 12
DOI: https://doi.org/10.3365/KJMM.2020.58.1.59

Abstract
The photovoltaic properties of TiO2/ZrO2 double electron transport layered perovskite solar cells were investigated based on the ZrO2 layer thickness. Samples were fabricated with a glass/FTO/TiO2/ZrO2/ perovskite structure. The TiO2/ZrO2 layer thickness ratio was confirmed to be 264/0, 228/168, 228/204, 270/242, and 282/288 nm, respectively, using an electron probe microanalyzer...... More

                           Cited By 4
Properties of Perovskite Solar Cells with GO Addition on TiO2 Layer
TiO2의 GO 혼합 양에 따른 페로브스카이트 태양전지의 물성 연구
Hyeryeong Lee, Kwangbae Kim, Ohsung Song
이혜령, 김광배, 송오성
Korean J. Met. Mater. 2019;57(7):456-461.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.456

Abstract
The photovoltaic properties of perovskite solar cells (PSCs) were investigated by adding graphene oxide (GO) to the electron transport layer of TiO2. The PSCs were fabricated with a glass/FTO/BL-TiO2/meso-TiO2 + GO/perovskite/HTL/Au electrode structure by adding various contents of GO (0.0, 0.3, 0.5 and 0.7 wt%) to the TiO2 layer. To..... More

                           Cited By 6
Evolution of Hole Transport/Perovskite Layer Properties with Au Evaporation Condition in a Perovskite Solar Cell
페로브스카이트 태양전지의 Au 열증착 조건에 따른 Hole Transport/Perovskite 층의 물성변화
Kwangbae Kim, Taeyeul Park, Ohsung Song
김광배, 박태열, 송오성
Korean J. Met. Mater. 2018;56(4):321-326.   Published online 2018 Apr 5
DOI: https://doi.org/10.3365/KJMM.2018.56.4.321

Abstract
Changes in the properties of the hole transport layer (HTL) and the perovskite layer in a perovskite solar sell (PSC) were observed under various Au thermal evaporation conditions. We employed a conventional thermal evaporator with a distance of 30 cm between the source and substrate in a vacuum of 6..... More

      
Properties of the Catalytic Nickel Silicides for a Dye-Sensitized Solar Cell
염료감응형 태양전지용 니켈실리사이드 촉매재료의 물성 연구
Taeyeul Park, Kwangbae Kim, Ohsung Song
박태열, 김광배, 송오성
Korean J. Met. Mater. 2017;55(6):440-445.   Published online 2017 Jun 1
DOI: https://doi.org/10.3365/KJMM.2017.55.6.440

Abstract
We have investigated the properties of nickel silicides as catalysts for dye-sensitized solar cells (DSSCs) by preparing several nickel silicide layers with a 100 nm-Ni/Si (100) structure using silicidation annealing for 30 minutes at 300 ℃ – 900 ℃. X-ray diffraction (XRD), four-point probe, field emission scanning electron microscope (FE-SEM),..... More

         Cited By 1
Optical Devices & Energy Materials
Properties of a Counter Electrode with Cobalt Silicides in a Dye Sensitized Solar Cell
코발트실리사이드 상대전극을 채용한 염료감응형 태양전지의 물성 연구
Yunyoung Noh, Kwangbae Kim, Ohsung Song
노윤영, 김광배, 송오성
Korean J. Met. Mater. 2017;55(1):39-45.   Published online 2017 Jan 5
DOI: https://doi.org/10.3365/KJMM.2017.55.1.39

Abstract
Cobalt silicide was used as a counter electrode to replace the Pt catalytic layer of a dye-sensitized solar cell (DSSC) device. 100 nm Si/ 100 nm Co on quartz was formed by sputtering and cobalt-silicides were formed by vacuum heat treatment at 500 ℃ and 700 ℃ for 30 min,..... More

      
Properties of a Counter Electrode with Nickel Silicides in a Dye Sensitized Solar Cell
니켈실리사이드 상대전극을 이용한 염료감응형 태양전지의 물성 연구
Kwangbae Kim, Yunyoung Noh, Minkyoung Choi, Ohsung Song
김광배, 노윤영, 최민경, 송오성
Korean J. Met. Mater. 2016;54(8):615-620.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.615

Abstract
Nickel silicide was used as a counter electrode to replace the Pt catalytic layer of a dye-sensitized solar cell (DSSC) device. 50 nm Si/ 50 nm Ni was formed on glass or quartz by sputtering, and nickel silicides were formed by vacuum heat treatments at 450 and 800 ℃ for..... More

         Cited By 1
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