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Blending of N-Type Semiconducting Polymer and PC61BM for an Efficient Electron-Selective Material to Boost the Performance of the Planar Perovskite Solar Cell

You-Hyun Seo, Jun-Seok Yeo, NoSoung Myoung, Sang-Youp Yim, Minji Kang, Dong-Yu Kim, Seok-In Na

ACS Appl Mater Interfaces. 2016 May 25;8(20):12822-9.

PMID: 27160866

Abstract:

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(NDI2OD-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.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP1100243400 P(NDI2OD-T2) P(NDI2OD-T2) 1100243-40-0 Price
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