Relationship between the intermediate phases of the sputtered Zn(O,S) buffer layer and the conduction band offset in Cd-free Cu(In,Ga)Se2 solar cells

Performance deficiencies from the too large conduction band offset between Cu2ZnSnSe4/ZnOS heterojunctions are abated by the inclusion of a co-solvent during aqueous growth of the buffer layer.

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The Influence of Conduction Band Offset on CdTe Solar Cells

Journal of Electronic Materials ◽

10.1007/s11664-017-5850-9 ◽

2017 ◽

Vol 47 (2) ◽

pp. 1201-1207 ◽

Cited By ~ 8

Author(s):

Yunfei Chen ◽

Xuehai Tan ◽

Shou Peng ◽

Cao Xin ◽

Alan E. Delahoy ◽

...

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Band Offset ◽

Conduction Band Offset ◽

Cdte Solar Cells

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Conduction band offset engineering in wide-bandgap Ag(In,Ga)Se2solar cells by hybrid buffer layer

Japanese Journal of Applied Physics ◽

10.7567/jjap.56.08mc09 ◽

2017 ◽

Vol 56 (8S2) ◽

pp. 08MC09 ◽

Cited By ~ 5

Author(s):

Takeshi Umehara ◽

Faris Akira Bin Mohd Zulkifly ◽

Kazuyoshi Nakada ◽

Akira Yamada

Keyword(s):

Buffer Layer ◽

Conduction Band ◽

Wide Bandgap ◽

Band Offset ◽

Conduction Band Offset

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Cu(In,Ga)Se2 solar cells with controlled conduction band offset of window/Cu(In,Ga)Se2 layers

Journal of Applied Physics ◽

10.1063/1.1366655 ◽

2001 ◽

Vol 89 (12) ◽

pp. 8327-8330 ◽

Cited By ~ 166

Author(s):

Takashi Minemoto ◽

Yasuhiro Hashimoto ◽

Takuya Satoh ◽

Takayuki Negami ◽

Hideyuki Takakura ◽

...

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Band Offset ◽

Conduction Band Offset

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Performance optimization of CH3NH3Pb(I1-xBrx)3 based perovskite solar cells by comparing different ETL materials through conduction band offset engineering

Optical Materials ◽

10.1016/j.optmat.2020.109897 ◽

2020 ◽

Vol 105 ◽

pp. 109897 ◽

Cited By ~ 4

Author(s):

Ayyaz Ahmed ◽

Kashif Riaz ◽

Haris Mehmood ◽

Tauseef Tauqeer ◽

Zubair Ahmad

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Performance Optimization ◽

Perovskite Solar Cells ◽

Band Offset ◽

Conduction Band Offset

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Influence of interface states, conduction band offset, and front contact on the performance of a-SiC:H(n)/c-Si(p) heterojunction solar cells

Chinese Physics B ◽

10.1088/1674-1056/26/6/068802 ◽

2017 ◽

Vol 26 (6) ◽

pp. 068802 ◽

Cited By ~ 2

Author(s):

Zhi Qiao ◽

Jian-Li Ji ◽

Yan-Li Zhang ◽

Hu Liu ◽

Tong-Kai Li

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Interface States ◽

Band Offset ◽

Heterojunction Solar Cells ◽

Conduction Band Offset

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The major influence of the conduction-band-offset on Zn(O, S)/CuIn0.7Ga0.3Se2 solar cells

Results in Physics ◽

10.1016/j.rinp.2018.07.006 ◽

2018 ◽

Vol 10 ◽

pp. 650-654 ◽

Cited By ~ 6

Author(s):

S. Bechlaghem ◽

B. Zebentout ◽

Z. Benamara

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Major Influence ◽

Band Offset ◽

Conduction Band Offset

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Theoretical analysis of the effect of conduction band offset of window/CIS layers on performance of CIS solar cells using device simulation

Solar Energy Materials and Solar Cells ◽

10.1016/s0927-0248(00)00266-x ◽

2001 ◽

Vol 67 (1-4) ◽

pp. 83-88 ◽

Cited By ~ 380

Author(s):

Takashi Minemoto ◽

Takuya Matsui ◽

Hideyuki Takakura ◽

Yoshihiro Hamakawa ◽

Takayuki Negami ◽

...

Keyword(s):

Solar Cells ◽

Theoretical Analysis ◽

Conduction Band ◽

Device Simulation ◽

Band Offset ◽

Conduction Band Offset

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Variable Light Soaking Effect of Cu(In,Ga)Se2 Solar Cells with Conduction Band Offset Control of Window/Cu(In,Ga)Se2 Layers

MRS Proceedings ◽

10.1557/proc-1012-y07-03 ◽

2007 ◽

Vol 1012 ◽

Cited By ~ 7

Author(s):

Takashi Minemoto ◽

Yasuhiro Hashimoto ◽

Takuya Satoh ◽

Takayuki Negami ◽

Hideyuki Takakura

Keyword(s):

Solar Cells ◽

Conduction Band ◽

Buffer Layers ◽

Window Layer ◽

Band Offset ◽

Conduction Band Offset ◽

Current Voltage ◽

Variable Light ◽

Cigs Solar Cells ◽

The Impact

AbstractThe impact of the conduction band offset (CBO) between window/Cu(In,Ga)Se2 (CIGS) layers on the light soaking (LS) effect in CIGS solar cells has been studied with continuous CBO control using a (Zn,Mg)O (ZMO) window layer. Two types of CIGS solar cells with different window/buffer/absorber layers configurations were fabricated, i.e., ZMO/CIGS (without buffer layer) and ZMO/CdS/CIGS structures. The CBO values between ZMO and CIGS layers were controlled to -0.15~0.25 eV. Plus and minus signs of CBO indicate the conduction band minimums of ZMO above and below that of CIGS, respectively. Current-voltage (J-V) characteristics of the solar cells with different LS durations revealed that a positive CBO value higher than 0.16 eV induces J-V curve distortion, i.e., LS effect, and all the J-V characteristics stabilized in 30 min. The degrees of the LS effect were dominated by the CBO value between ZMO and CIGS layers in the both structure regardless of the existence of CdS buffer layers. These results indicate that the LS effect is dominated by the highest barrier for photo-generated electrons in the conduction band diagram, i.e., the CBO between ZMO and CIGS layers, and quantitatively the LS effect emerges the CBO value higher than 0.16 eV.

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