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Light Management through Organic Bulk Heterojunction and Carrier Interfacial Engineering for Perovskite Solar Cells with 23.5% Efficiency
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-06-22 , DOI: 10.1002/adfm.202203873 Zhichong Shi 1 , Donglei Zhou 1 , Xinmeng Zhuang 1 , Shuainan Liu 1 , Rui Sun 1 , Wen Xu 1 , Le Liu 1 , Hongwei Song 1
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2022-06-22 , DOI: 10.1002/adfm.202203873 Zhichong Shi 1 , Donglei Zhou 1 , Xinmeng Zhuang 1 , Shuainan Liu 1 , Rui Sun 1 , Wen Xu 1 , Le Liu 1 , Hongwei Song 1
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Light management through organic bulk heterojunction (BHJ) has been widely reported to push up the performance of lead-based perovskite solar cells (PSCs) by extending the spectral response. However, the development of integrated perovskite/organic bulk heterojunction solar cells (IPSCs) encounters a bottleneck problem that the poor carrier extraction capability of perovskite and BHJ leads to the severe loss of open-voltage (Voc) and fill factor (FF). Herein, the strategy of introducing black phosphorous quantum dots (BPQDs) and cuprous oxide (CuOx) into IPSCs is adopted, which not only successfully extends the single-component PSCs light response to 930 nm, but also significantly reduces the Voc and FF loss of IPSCs. BPQDs with bipolar charge transport and high mobility characteristics improves the electron/hole transport behaviors of perovskite and BHJ films. CuOx with matching energy levels is introduced between BHJ and Spiro-OMeTAD as a buffer layer, which provides good driving force for the transportation of holes. The champion device achieves a power conversion efficiency of 23.52%. The IPSCs devices also display an excellent long-term and humidity stability. This work demonstrates an approach to solve the carrier extraction key issues that limits the performance of IPSCs, which achieves an instructive result in the development of PSCs light management.
中文翻译：
通过有机体异质结和载流子界面工程对钙钛矿太阳能电池进行光管理，效率为 23.5%
据报道，通过有机体异质结 (BHJ) 进行光管理可通过扩展光谱响应来提高铅基钙钛矿太阳能电池 (PSC) 的性能。然而，集成钙钛矿/有机体异质结太阳能电池（IPSCs）的发展遇到了一个瓶颈问题，即钙钛矿和BHJ的载流子提取能力差，导致开路电压（Voc）和填充因子（FF）的严重损失。本文采用将黑磷量子点（BPQDs）和氧化亚铜（CuO x）引入IPSCs的策略，不仅成功地将单组分PSCs的光响应扩展到930 nm，而且显着降低了V oc和 IPSC 的 FF 损失。具有双极电荷传输和高迁移率特性的 BPQD 改善了钙钛矿和 BHJ 薄膜的电子/空穴传输行为。在BHJ和Spiro-OMeTAD之间引入了能级匹配的CuO x作为缓冲层，为空穴的传输提供了良好的驱动力。冠军器件实现了23.52%的电源转换效率。IPSC 器件还显示出出色的长期和湿度稳定性。这项工作展示了一种解决限制IPSC性能的载波提取关键问题的方法，这对PSC光管理的发展具有指导意义。
更新日期：2022-06-22
中文翻译：
通过有机体异质结和载流子界面工程对钙钛矿太阳能电池进行光管理，效率为 23.5%
据报道，通过有机体异质结 (BHJ) 进行光管理可通过扩展光谱响应来提高铅基钙钛矿太阳能电池 (PSC) 的性能。然而，集成钙钛矿/有机体异质结太阳能电池（IPSCs）的发展遇到了一个瓶颈问题，即钙钛矿和BHJ的载流子提取能力差，导致开路电压（Voc）和填充因子（FF）的严重损失。本文采用将黑磷量子点（BPQDs）和氧化亚铜（CuO x）引入IPSCs的策略，不仅成功地将单组分PSCs的光响应扩展到930 nm，而且显着降低了V oc和 IPSC 的 FF 损失。具有双极电荷传输和高迁移率特性的 BPQD 改善了钙钛矿和 BHJ 薄膜的电子/空穴传输行为。在BHJ和Spiro-OMeTAD之间引入了能级匹配的CuO x作为缓冲层，为空穴的传输提供了良好的驱动力。冠军器件实现了23.52%的电源转换效率。IPSC 器件还显示出出色的长期和湿度稳定性。这项工作展示了一种解决限制IPSC性能的载波提取关键问题的方法，这对PSC光管理的发展具有指导意义。
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