当前位置：
X-MOL 学术
›
ACS Energy Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Synergistic Effects of Lead Thiocyanate Additive and Solvent Annealing on the Performance of Wide-Bandgap Perovskite Solar Cells
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-05-01 00:00:00 , DOI: 10.1021/acsenergylett.7b00278 Yue Yu 1 , Changlei Wang 1 , Corey R. Grice 1 , Niraj Shrestha 1 , Dewei Zhao 1 , Weiqiang Liao 1 , Lei Guan 1 , Rasha A. Awni 1 , Weiwei Meng 1 , Alexander J. Cimaroli 1 , Kai Zhu 2 , Randy J. Ellingson 1 , Yanfa Yan 1
ACS Energy Letters ( IF 19.3 ) Pub Date : 2017-05-01 00:00:00 , DOI: 10.1021/acsenergylett.7b00278 Yue Yu 1 , Changlei Wang 1 , Corey R. Grice 1 , Niraj Shrestha 1 , Dewei Zhao 1 , Weiqiang Liao 1 , Lei Guan 1 , Rasha A. Awni 1 , Weiwei Meng 1 , Alexander J. Cimaroli 1 , Kai Zhu 2 , Randy J. Ellingson 1 , Yanfa Yan 1
Affiliation
|
We show that the cooperation of lead thiocyanate additive and a solvent annealing process can effectively increase the grain size of mixed-cation lead mixed-halide perovskite thin films while avoiding excess lead iodide formation. As a result, the average grain size of the wide-bandgap mixed-cation lead perovskite thin films increases from 66 ± 24 to 1036 ± 111 nm, and the mean carrier lifetime shows a more than 3-fold increase, from 330 ns to over 1000 ns. Consequently, the average open-circuit voltage of wide-bandgap perovskite solar cells increases by 80 (70) mV, and the average power conversion efficiency (PCE) increases from 13.44 ± 0.48 (11.75 ± 0.34) to 17.68 ± 0.36 (15.58 ± 0.55)% when measured under reverse (forward) voltage scans. The best-performing wide-bandgap perovskite solar cell, with a bandgap of 1.75 eV, achieves a stabilized PCE of 17.18%.
中文翻译：
硫氰酸铅添加剂和溶剂退火对宽带隙钙钛矿太阳能电池性能的协同效应
我们表明，硫氰酸铅添加剂与溶剂退火工艺的配合可以有效地增加混合阳离子混合卤化钙钛矿型钙钛矿薄膜的晶粒尺寸，同时避免形成过量的碘化铅。结果，宽带隙混合阳离子钙钛矿铅薄膜的平均晶粒尺寸从66±24增加到1036±111 nm，平均载流子寿命增加了3倍以上，从330 ns增大到50nm以上。 1000 ns。因此，宽带隙钙钛矿太阳能电池的平均开路电压增加了80（70）mV，平均功率转换效率（PCE）从13.44±0.48（11.75±0.34）增加到17.68±0.36（15.58±0.55） ）％（在反向（正向）电压扫描下测量）。性能最佳的宽带隙钙钛矿太阳能电池，带隙为1.75 eV，
更新日期：2017-05-01
中文翻译：
硫氰酸铅添加剂和溶剂退火对宽带隙钙钛矿太阳能电池性能的协同效应
我们表明，硫氰酸铅添加剂与溶剂退火工艺的配合可以有效地增加混合阳离子混合卤化钙钛矿型钙钛矿薄膜的晶粒尺寸，同时避免形成过量的碘化铅。结果，宽带隙混合阳离子钙钛矿铅薄膜的平均晶粒尺寸从66±24增加到1036±111 nm，平均载流子寿命增加了3倍以上，从330 ns增大到50nm以上。 1000 ns。因此，宽带隙钙钛矿太阳能电池的平均开路电压增加了80（70）mV，平均功率转换效率（PCE）从13.44±0.48（11.75±0.34）增加到17.68±0.36（15.58±0.55） ）％（在反向（正向）电压扫描下测量）。性能最佳的宽带隙钙钛矿太阳能电池，带隙为1.75 eV，
京公网安备 11010802027423号