Thermally induced structural evolution and performance of mesoporous block copolymer-directed alumina perovskite solar cells.
Kwan Wee Tan, David T Moore, Michael Saliba, Hiroaki Sai, Lara A Estroff, Tobias Hanrath, Henry J Snaith, Ulrich Wiesner
文献索引:ACS Nano 8(5) , 4730-9, (2014)
全文:HTML全文
摘要
Structure control in solution-processed hybrid perovskites is crucial to design and fabricate highly efficient solar cells. Here, we utilize in situ grazing incidence wide-angle X-ray scattering and scanning electron microscopy to investigate the structural evolution and film morphologies of methylammonium lead tri-iodide/chloride (CH3NH3PbI(3-x)Cl(x)) in mesoporous block copolymer derived alumina superstructures during thermal annealing. We show the CH3NH3PbI(3-x)Cl(x) material evolution to be characterized by three distinct structures: a crystalline precursor structure not described previously, a 3D perovskite structure, and a mixture of compounds resulting from degradation. Finally, we demonstrate how understanding the processing parameters provides the foundation needed for optimal perovskite film morphology and coverage, leading to enhanced block copolymer-directed perovskite solar cell performance.
相关化合物
相关文献:
2015-05-01
[J. Virol. 89(9) , 4918-31, (2015)]
2015-01-01
[Eur. J. Pharm. Biopharm. 89 , 30-9, (2015)]
2015-01-01
[Nucleic Acids Res. 42(18) , 11433-46, (2014)]
2014-10-01
[Biochim. Biophys. Acta 1838(10) , 2615-24, (2014)]
2014-09-01
[Pharmacol. Biochem. Behav. 124 , 153-9, (2014)]