https://scholars.lib.ntu.edu.tw/handle/123456789/633928
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Ho, Thi Thong | en_US |
dc.contributor.author | Yang, Zi Liang | en_US |
dc.contributor.author | Fu, Fang Yu | en_US |
dc.contributor.author | Jokar, Efat | en_US |
dc.contributor.author | Hsu, Hung Chang | en_US |
dc.contributor.author | Liu, Pei Chi | en_US |
dc.contributor.author | Quadir, Shaham | en_US |
dc.contributor.author | Chen, Cheng Ying | en_US |
dc.contributor.author | YA-PING CHIU | en_US |
dc.contributor.author | CHIH-I WU | en_US |
dc.contributor.author | Chen, Kuei Hsien | en_US |
dc.contributor.author | LI-CHYONG CHEN | en_US |
dc.date.accessioned | 2023-07-18T06:48:11Z | - |
dc.date.available | 2023-07-18T06:48:11Z | - |
dc.date.issued | 2022-11-28 | - |
dc.identifier.issn | 2574-0962 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/633928 | - |
dc.description.abstract | In thin-film solar cells (TFSCs), the buffer layer plays a vital role in enhancing the power conversion efficiency (PCE) by improving the charge carrier dynamics. In the present study, a series of eco-friendly Zn1-xSnxOy (ZTO, 0 ≤ x ≤ 1) films grown by atomic layer deposition are used as buffer layers in the SnS-based TFSCs. We systematically investigate the effect of the Zn-to-Sn ratio on the band alignment at the SnS/ZTO heterojunction. The results revealed that by controlling the Zn-to-Sn ratio in the ZTO films, the energy band alignment changed from a "cliff-type"(9%Sn-ZTO41) to a "spike-type"(18%Sn-ZTO11). The spike-type band configuration with appropriate conduction band offset (CBO<0.4 eV) at the SnS/ZTO11 junction is visualized by cross-sectional scanning tunneling microscopy. This favorable CBO at the heterojunction reduces the interfacial recombination and enhances the charge collection probability in the ZTO11 device, ultimately significantly improving the open-circuit voltage (Voc) from 0.24 V to 0.34 V. The charge recombination mechanisms in the ZTO-based TFSCs is elaborated and compared with the CdS-based one, and the result confirms the charge recombination suppression at the SnS/ZTO11 interface. Moreover, the photocurrent in all ZTO-based TFSCs is significantly higher than CdS-based ones due to the broader band gap of ZTO compared to CdS. Improvements in Voc and Jsc significantly increase the PCE from 1.7% (CdS buffer layer) to 3% (ZTO11 with 18% Sn). This study highlights the potential of ZTO as an effective and environmentally friendly buffer layer in anisotropic photovoltaic materials. | en_US |
dc.relation.ispartof | ACS Applied Energy Materials | en_US |
dc.subject | Cd-free buffer layer | eco-friendly solar cells | interface engineering | SnS-based photovoltaics | zinc-tin-oxide buffer layer | en_US |
dc.title | Modulation and Direct Mapping of the Interfacial Band Alignment of an Eco-Friendly Zinc-Tin-Oxide Buffer Layer in SnS Solar Cells | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1021/acsaem.2c03129 | - |
dc.identifier.scopus | 2-s2.0-85141674811 | - |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85141674811 | - |
dc.relation.journalvolume | 5 | en_US |
dc.relation.journalissue | 11 | en_US |
dc.relation.pageend | 14540 | en_US |
item.openairetype | journal article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.fulltext | no fulltext | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
crisitem.author.dept | Applied Physics | - |
crisitem.author.dept | Program in Nanoengineering and Nanoscience | - |
crisitem.author.dept | Photonics and Optoelectronics | - |
crisitem.author.dept | Electrical Engineering | - |
crisitem.author.dept | Center for Condensed Matter Sciences | - |
crisitem.author.orcid | 0000-0001-7065-4411 | - |
crisitem.author.orcid | 0000-0003-3613-7511 | - |
crisitem.author.parentorg | College of Science | - |
crisitem.author.parentorg | Graduate School of Advanced Technology | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | College of Electrical Engineering and Computer Science | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
顯示於: | 物理學系 |
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