Development of high-efficiency Cu(InGa)Se2 thin-film solar cells fabricated by a nanoparticles based process

开发基于纳米颗粒的工艺制造的高效 Cu(InGa)Se2 薄膜太阳能电池

• 批准号: 22360006
• 负责人: YAMADA Akira
• 金额: $ 12.65万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22360006/
• 关键词: 光物性; 太陽電池; ナノ粒子; 化合物薄膜; 半導体; Cu(InGa)Se_2

In the research work, the fabrication process for Cu(InGa)Se2 (CIGS) solar cells has been developed by using a non-vacuum process, aiming at a realization of low-cost fabrication process for CIGS solar cells. In the process, nanoparticles were chemically synthesized, and then they were spray-printed/sintered to produce CIGS thin films. It was found that the Cu-In-Ga-Se nanoparticles caused small grain size and low crystallinity, resulting in low-efficiency solar cells. The crystallization velocity was increased and the large grain size was obtained when the Cu-Se and In-Se nanoparticles were used as the starting materials. Furthermore, a new approach for the quality improvement of CIS film has been developed, that is, thiourea has been applied as a binding agent and a sintering additive for the fabrication of high-quality CIS film. The fabricated CIS film exhibited a denser and larger-grain-size layer compared with the CIGS film fabricated using Cu-In-Ga-Se nanoparticles. Finally,a CIS solar cell with an efficiency of 3.5% has been successfully fabricated.

本研究工作采用非真空工艺开发了Cu（InGa）Se 2（CIGS）太阳电池的制备工艺，旨在实现CIGS太阳电池的低成本制备。在这个过程中，纳米粒子被化学合成，然后它们被喷涂/烧结以产生CIGS薄膜。结果表明，Cu-In-Ga-Se纳米粒子的晶粒尺寸小，结晶度低，导致电池效率低。以Cu-Se和In-Se纳米粒子为原料，晶化速度加快，晶粒尺寸增大。此外，还提出了一种提高CIS薄膜质量的新方法，即采用硫脲作为粘结剂和烧结助剂，制备高质量的CIS薄膜。与使用Cu-In-Ga-Se纳米颗粒制备的CIGS膜相比，所制备的CIS膜表现出更致密和更大晶粒尺寸的层。最后，成功地制作了转换效率为3.5%的CIS太阳能电池。

项目成果

化合物半導体薄膜太陽電池及びその製造方法

化合物半导体薄膜太阳能电池及其制造方法

• 发表时间: 2010

Improvement of Film Quality in CIS Thin Films Fabricated by Non-vacuum

非真空制备 CIS 薄膜薄膜质量的提高

• 发表时间: 2010
• 作者: Y. Zhang;M. Ito;A. Yamada and M. Konagai
• 通讯作者: A. Yamada and M. Konagai

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Improvement of Film Quality in CuInSe2 Thin Films Fabricated by a Non-Vacuum

非真空制备 CuInSe2 薄膜薄膜质量的提高

• DOI: 10.1143/jjap.50.04dp12
• 发表时间: 2011
• 期刊: Nanoparticle-Based Approach, Jpn. J. Appl. Phys
• 作者: Y. Zhang;M. Ito;T. Tamura;A. Yamada;and M. Konagai
• 通讯作者: and M. Konagai

化合物半導体薄膜作製用インク、そのインクを用いて得た化合物半導体薄膜、その化合物半導体薄膜を備える太陽電池、およびその太陽電池の製造方法

化合物半导体薄膜制造用油墨、使用该油墨得到的化合物半导体薄膜、具备该化合物半导体薄膜的太阳能电池以及太阳能电池的制造方法

• 发表时间: 2011