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Efficiency enhancement of perovskite solar cells by incorporation of CdS quantum dot through fast electron injection
Organic Electronics ( IF 2.7 ) Pub Date : 2018-07-18 , DOI: 10.1016/j.orgel.2018.07.012
Syed Mansoor Ali , Shahid Mehmood Ramay , Muhammad Hammad Aziz , Naeem ur-Rehman , M.S. AlGarawi , S.S. AlGhamd , Asif Mahmood , Turki S. Alkhuraiji , Shahid Atiq

A significant enhancement in the power conversion efficiency from 8.93 to 10.52% has been achieved by designing the perovskite solar cell by incorporating CdS quantum dots. The CdS quantum dots have been synthesised by a successive ionic layer adsorption and reaction (SILAR) technique, on TiO2 substrate. This has subsequently been used as an electron transport material in the perovskite solar cell based on CH3NH3PbI3. In the photoluminescence spectra, an intense quenching around ≈770 nm has been observed upon the addition of CdS quantum dots, which is appreciably linked with the rise of the induced photon to current efficiency of the respective solar cells. The enhanced perovskite solar cell photon conversion efficiency can be endorsed to the longer electron life time that implies lower charge carrier recombination rate in the device structure after incorporating of CdS quantum dots.



中文翻译:

通过快速电子注入掺入CdS量子点来提高钙钛矿太阳能电池的效率

通过结合CdS量子点设计钙钛矿太阳能电池,功率转换效率从8.93%显着提高到10.52%。通过连续的离子层吸附和反应(SILAR)技术,在TiO 2衬底上合成了CdS量子点。随后已将其用作基于CH 3 NH 3 PbI 3的钙钛矿太阳能电池中的电子传输材料。。在光致发光光谱中,在添加CdS量子点后,观察到了约770 nm附近的强烈猝灭,这与感应光子的上升与各个太阳能电池的电流效率明显相关。钙钛矿太阳能电池光子转换效率的提高可以被认可为更长的电子寿命,这意味着在掺入CdS量子点后器件结构中的载流子复合率降低。

更新日期:2018-07-18
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