Seo, You-Hyun Yeo, Jun-Seok Myoung, NoSoung Yim, Sang-Youp Kang, Minji Kim, Dong-Yu Na, Seok-In 2024-01-20T04:04:34Z 2024-01-20T04:04:34Z 2022-01-25 2016-05 1944-8244 https://pubs.kist.re.kr/handle/201004/124088 The highly efficient CH3NH3PbI3 perovskite solar cell (PeSC) is simply achieved by employing a blended electron-transport layer (ETL) consisting of PC61BM and P(NDI2OD-T2). The high molecular weight of P(NDI2OD-T2) allows for a thinned ETL with a uniform morphology that optimizes the PC61BM ETL more effectively. As a result of this enhancement, the power conversion efficiency of a PC61BM:P(NDI20D-T2)-based PeSC is 25% greater than that of the conventional PC61BM based-PeSC; additionally, the incorporation of P(NDI2OD-T2) into PC61BM attenuates the dependence of the PeSC on the ETL-processing conditions regarding its performance. It is revealed that, in addition to the desirable n-type semiconducting characteristics of PC61BM:P(NDI2OD-T2) including a higher electron-mobility and a more-effective electron selectivity of a blended ETL for an efficient electron extraction the superior performance of a PC61BM:P(NDI2OD-T2) device is the result of a thinned and uniformly covered ETL on the perovskite layer. English American Chemical Society Blending of n-type Semiconducting Polymer and PC61 BM for an Efficient Electron-Selective Material to Boost the Performance of the Planar Perovskite Solar Cell Article 10.1021/acsami.6b02478 1 ACS Applied Materials & Interfaces, v.8, no.20, pp.12822 - 12829 ACS Applied Materials & Interfaces 8 20 12822 12829 N scie scopus 000376825800032 2-s2.0-84973527121 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article TRIHALIDE PEROVSKITE HYSTERESIS LAYER STATE perovskite solar cells planar structures small molecules polymer binders charge extractions interfacial layers