Researcher Database

KAWANO YU

Department / Course College of Science and Engineering Department of Electrical and Electronic Engineering

Title / Position Assistant Professor

Papers
1.	2021/12/14	[Ga]/([Ga]+[In]) profile controlled through Ga flux for performance improvement of Cu(In,Ga)Se2 solar cells on flexible stainless steel substrates │ [Ga]/([Ga]+[In]) profile controlled through Ga flux for performance improvement of Cu(In,Ga)Se2 solar cells on flexible stainless steel substrates │ 899,pp.163276 (Co-authored)
2.	2021/08/26	Effect of an Ohmic Back Contact on the Stability of Cu(In,Ga)Se2-based Flexible Bifacial Solar Cells │ Applied Physics Letters │ 119,pp.103903 (Co-authored)
3.	2021/04/27	Accurate estimation of outdoor performance of photovoltaic module through spectral mismatch correction factor under wide range of solar spectrum │ Current Applied Physics │ 28,pp.59-71 (Co-authored)
4.	2021/03/12	Optimized bandgaps of top and bottom subcells for bifacial two-terminal tandem solar cells under different back irradiances │ Solar Energy │ 220,pp.165-174 (Co-authored)
5.	2021/02/04	Impact of Auger recombination on performance limitation of perovskite solar cell │ Solar Energy │ 217,pp.342 (Co-authored)
6.	2021/02/01	Device Design for High-performance Bifacial Cu(In,Ga)Se2 Solar Cells under Front and Rear Illuminations │ Solar Energy │ 218,pp.76-84 (Co-authored)
7.	2021/01/06	Thermodynamic limit of tandem solar cells under different solar spectra and their perovskite top solar cell │ Optical Materials │ 113,pp.110819 (Co-authored)
8.	2020/11/16	Interfacial modification mechanism by aging effect for high-performance Cd-free and all-dry process Cu(In,Ga)(S,Se)2 solar cells │ Applied Physics Letters │ 177,pp.223501-1-223501-5 (Co-authored)
9.	2020/10/30	Spectral gain and loss of different-type photovoltaic modules through average photon energy of various locations in Japan │ Solar Energy │ (Co-authored)
10.	2020/10/27	Back-Contact Barrier Analysis to Develop Flexible and Bifacial Cu(In,Ga)Se2 Solar Cells Using Transparent Conductive In2O3:SnO2 Thin Films │ Solar Energy │ (Co-authored)
11.	2020/10	Superstrate-type Flexible and Bifacial Cu(In,Ga)Se2 Thin-film Solar Cells with In2O3:SnO2 Back Contact Solar Energy │ Solar Energy │ (Co-authored)
12.	2020/09	Application of Two-Dimensional MoSe2 Atomic Layers to the Lift-off Process for Producing Lightweight and Flexible Bifacial Cu (In, Ga) Se2 Solar Cells │ (Co-authored)
13.	2020/07	Bismuth-doped Cu(In,Ga)Se2 solar cell on flexible stainless steel substrate: Examination of bismuth-doping effectiveness under different substrate temperatures on photovoltaic performances │ (Co-authored)
14.	2020/05	Utilization of spectral mismatch correction factor for estimation of precise outdoor performance under different average photon energies │ (Co-authored)
15.	2020/05	Zn1-xMgxO second buffer layer of Cu2Sn1-xGexS3 thin-film solar cell for minimizing carrier recombination and open-circuit voltage deficit Solar Energy │ (Co-authored)
16.	2020/04	Manipulation of [Ga]/([Ga]+[In]) profile in 1.4-µm-thick Cu(In,Ga)Se2 thin film on flexible stainless steel substrate for enhancing short-circuit current density and conversion efficiency of its solar cell │ (Co-authored)
17.	2020/04	Transparent electrode and buffer layer combination for reducing carrier recombination and optical loss realizing over 22%-efficient Cd-free alkaline-treated Cu(In,Ga)(S,Se)2 solar cell by all-dry process │ (Co-authored)
18.	2020/03	A review of Sb2Se3 photovoltaic absorber materials and thin-ﬁlm solar cells │ (Co-authored)
19.	2020/03	Impact of Urbach energy on open-circuit voltage deficit of thin-film solar cells │ (Co-authored)
20.	2020/02	Fabrication of flexible and bifacial Cu(In,Ga)Se2 solar cell with superstrate-type structure using a lift-off process │ Solar Energy │ 199,pp.819-825 (Co-authored)
21.	2020/01	Effect of alkali treatment on photovoltaic performances of Cu(In,Ga)(S,Se)2 solar cells and their absorber quality analyzed by Urbach energy and carrier recombination rates │ ACS Applied Energy Materials │ 3,pp.1292-1297 (Co-authored)
22.	2020	A review of Sb2Se3 photovoltaic absorber materials and thin-ﬁlm solar cells │ Solar Energy │ 201,pp.227-246 (Co-authored)
23.	2020	Description of short circuit current of outdoor photovoltaic modules by multiple regression analysis under various irradiance levels │ Renewable Energy │ 147,pp.895-902 (Co-authored)
24.	2020	Effect of alkali treatment on photovoltaic performances of Cu(In,Ga)(S,Se)2 solar cells and their absorber quality analyzed by Urbach energy and carrier recombination rates │ ACS Applied Energy Materials │ 3,pp.1292-1297 (Co-authored)
25.	2020	Fabrication of flexible and bifacial Cu(In,Ga)Se2 solar cell with superstrate-type structure using a lift-off process │ Solar Energy │ 199,pp.819-825 (Co-authored)
26.	2020	Impact of Urbach energy on open-circuit voltage deficit of thin-film solar cells │ Solar Energy Materials and Solar Cells │ 210,pp.110502 (Co-authored)
27.	2020	Influence of halogen content in mixed halide perovskite solar cells on cell performances through device simulation │ Solar Energy Materials and Solar Cells │ 205,pp.110252 (Co-authored)
28.	2020	Investigation of carrier recombination of Na-doped Cu2SnS3 solar cell for its improved conversion efficiency of 5.1% │ Solar Energy Materials and Solar Cells │ 206,pp.110261 (Co-authored)
29.	2020	Manipulation of [Ga]/([Ga]+[In]) profile in 1.4-µm-thick Cu(In,Ga)Se2 thin film on flexible stainless steel substrate for enhancing short-circuit current density and conversion efficiency of its solar cell │ Solar Energy │ 204,pp.231-237 (Co-authored)
30.	2020	Mobility improvement of Zn1-xMgxO:Al grown under room temperature by co-sputtering through optimizations of Al and Mg contents │ Materials Science in Semiconductor Processing │ 109,pp.104921 (Co-authored)
31.	2020	Theoretical analysis of band alignment at back junction in Sn-Ge perovskite solar cells with inverted p-i-n structure │ Solar Energy Materials and Solar Cells │ 206,pp.110268 (Co-authored)
32.	2020	Transparent electrode and buffer layer combination for reducing carrier recombination and optical loss realizing over 22%-efficient Cd-free alkaline-treated Cu(In,Ga)(S,Se)2 solar cell by all-dry process │ ACS Applied Materials & Interfaces │ 12,pp.22298-2307 (Co-authored)
33.	2020	Utilization of spectral mismatch correction factor for estimation of precise outdoor performance under different average photon energies │ Renewable Energy │ 157,pp.173-181 (Co-authored)
34.	2020	Zn1-xMgxO second buffer layer of Cu2Sn1-xGexS3 thin-film solar cell for minimizing carrier recombination and open-circuit voltage deficit Solar Energy │ Solar Energy │ 204,pp.769-776 (Co-authored)
35.	2019/12	Influence of Ge/(Ge+Sn) composition ratio in Cu2Sn1-xGexS3 thin-film solar cells on their physical properties and photovoltaic performances │ Solar Energy Materials and Solar Cells │ 208,pp.110382 (Co-authored)
36.	2019	22%-efficient Cd-free Cu(In,Ga)(S,Se)2 solar cell by all-dry process using Zn0.8Mg0.2O and Zn0.9Mg0.1O:B as buffer and transparent conductive oxide layers │ Progress in Photovoltaics: Research and Applications │ (Co-authored)
37.	2019	Aging Effect of a Cu(In,Ga)(S,Se)2 Absorber on the Photovoltaic Performance of Its Cd-Free Solar Cell Fabricated by an All-Dry Process: Its Carrier Recombination Analysis │ Advanced Energy Materials │ (Co-authored)
38.	2019	Application of Al-Doped (Zn,Mg)O on Pure-Sulfide Cu(In,Ga)S2 Solar Cells for Enhancement of Open-Circuit Voltage │ Solar Energy Materials and Solar Cells │ 202,pp.110157 (Co-authored)
39.	2019	Characteristics of Zn1-xMgxO:B and its application as transparent conductive oxide layer in Cu(In,Ga)(S,Se)2 solar cells with and without CdS buffer layer │ Solar Energy │ 184,pp.553-560 (Co-authored)
40.	2019	Characterization of Cd-free Zn1-xMgxO:Al/Zn1-xMgxO/Cu(In,Ga)(S,Se)2 solar cells fabricated by all dry process using ultraviolet light excited time-resolved photoluminescence │ Optical Materials │ 11,pp.17539-7545 (Co-authored)
41.	2019	Description of performance degradation of photovoltaic modules using spectral mismatch correction factor under different irradiance levels │ Renewable Energy │ 14,pp.444-450 (Co-authored)
42.	2019	Examination of relationship between Urbach energy and open-circuit voltage deficit of flexible Cu(In,Ga)Se₂ solar cell for its improved photovoltaic performances │ ACS Applied Energy Materials │ (Co-authored)
43.	2019	Impact of average photon energy on spectral gain and loss of various-type PV technologies at different locations │ Renewable Energy │ 145,pp.1317-1324 (Co-authored)
44.	2019	Numerical reproduction of a perovskite solar cell by device simulation considering band gap grading │ Optical Materials │ 92,pp.60-66 (Co-authored)
45.	2019	Production of hollow germanium alloy quasi-spheres through a coaxial nozzle │ Japanese Journal of Applied Physics │ 58,pp.68001 (Co-authored)
46.	2019	Spectral mismatch correction factor for precise outdoor performance evaluation and description of performance degradation of different-type photovoltaic modules Corresponding │ Solar Energy │ 181,pp.169-177 (Co-authored)
47.	2019	Urbach energy of Cu(In,Ga)Se2 and Cu(In,Ga)(S,Se)2 absorbers prepared by various methods: Indicator of their quality Corresponding │ Materials Communicatins │ 21,pp.100652 (Co-authored)
48.	2018/11	Description of degradation of output performance for photovoltaic modules by multiple regression analysis based on environmental factors │ Optik │ ,pp.1063-1070 (Co-authored)
49.	2018/09	Investigation of near-surface material composition of Cu(In,Ga)Se2 ﬁlm after air exposure and chemical etching for its Cd-free solar cell │ Japanese Journal of Applied Physics │ 57,pp.121201-1 ~ 121201-6 (Co-authored)
50.	2018	Micro-scale current path distributions of Zn1-xMgxO-coated SnO2:F transparent electrodes prepared by sol-gel and sputtering methods in perovskite solar cells │ Thin Solid Films │ 669,pp.455-460 (Co-authored)
51.	2016/08	Effects of Na and secondary phases on physical properties of SnS thin film after sulfurization process │ Japanese Journal of Applied Physics │ 55,pp.092301-1 ~ 092301-4 (Co-authored)
52.	2015/03	Impact of growth temperature on the properties of SnS film prepared by thermal evaporation and its photovoltaic performance │ Current Applied Physics │ 15,pp.897-901 (Co-authored)