Inkjet printed CuIn(1-X)GaXSe2 thin film by controlled selenium distribution for improved power conversion efficiency in chalcopyrite solar cells
Inkjet printed CuIn(1-X)GaXSe2 thin film by controlled selenium distribution for improved power conversion efficiency in chalcopyrite solar cells
复制标题
通过控制硒分布喷墨印刷 CuIn(1-X)GaXSe2 薄膜，以提高黄铜矿太阳能电池的功率转换效率
DOI：
10.1016/j.apsadv.2021.100144
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
S. Dhage
中科院分区：
文献类型：
--
作者：
Brijesh Singh Yadav;S. Dey;S. Dhage
硒(Se)蒸气压是CuIn1-XGaX(CIG)薄膜硒化过程中获得高质量CuIn1-XGaXSe2(CIGS)吸收层的关键因素。为了研究硒蒸气分布对喷墨印刷前体薄膜晶粒生长的影响，使用了两种几何形状的石墨盒（方形和圆形）。结果表明，由于硒蒸气的充分且均匀的分布，圆形石墨盒中的硒化产生了均匀的表面覆盖并抑制了细晶层。相比之下，在方形石墨盒中硒化的薄膜表现出高应变和低结晶度，并具有厚的细晶粒层。讨论了基于内部几何约束的石墨盒内硒蒸气的可能分布及其对晶相和微观结构的影响。最后，由于高光吸收和高效的载流子分离，使用圆形石墨盒中硒化薄膜制造的 CIGS 器件表现出高达 5.2% 的功率转换效率。根据 J-V 和 EQE 结果，检查和讨论了器件中可能的损耗和重组。
Selenium (Se) vapor pressure is a key factor during the selenization of CuIn1-XGaX(CIG) film to obtain a high-quality CuIn1-XGaXSe2(CIGS) absorber layer. To investigate the effect of Se vapor distribution on the grain growth of inkjet printed precursor film, two geometries of graphite box (square and circular) are used. The results revealed that selenization in the round graphite box give rise to uniform surface coverage and suppressed fine-grained layer due to adequate and uniform distribution of Se vapor. In contrast, film selenized in a square graphite box exhibits high strain and low crystallinity with a thick fine-grained layer. Probable Se vapor distribution inside the graphite box based on internal geometrical constraint and its impact on crystal phase and microstructure is discussed. Finally, CIGS devices fabricated using films selenized in a round graphite box demonstrates higher power-conversion efficiency of 5.2%, owing to high light absorption and efficient carrier separation. Based on J-V and EQE results, probable losses and recombination in the devices are examined and discussed.
影响因子：
2.8
作者：
Jackson, Philip;Hariskos, Dimitrios;Powalla, Michael
通讯作者：
Powalla, Michael