NDLI: Perovskite/polymer monolithic hybrid tandem solar cells utilizing a low-temperature, full solution process

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Materials Horizons Vol - 2 Issue - 1

Materials Horizons Vol -1

Perovskite/polymer monolithic hybrid tandem solar cells utilizing a low-temperature, full solution process

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Chun-Chao Li, Gang Chang, Wei-Hsuan Bae, Sang-Hoon Hong, Ziruo Zhou, Huanping Chen, Qi Yang, Yang
Copyright Year	2015
Abstract	In the current study, a monolithic integration of perovskite and polymer subcells into a tandem structure is realized through a full solution process. The wide bandgap perovskite absorber (CH3NH3PbI3) is processed via a one-step deposition employing an additive-assisted solvent wash method. In particular, a small molecule additive, BmPyPhB, is added into the precursor solution to improve the uniformity of the initial nucleation process of the crystal by providing heterogeneous nucleation sites throughout the solution space. Next, a solvent wash method is employed to induce the fast crystallization of uniform and well-defined grains in the absorber layer as well as to reduce the requirement for thermal annealing. Thus, the highest power conversion efficiency (PCE) of 9.1% is obtained for a single junction, planar-structured CH3NH3PbI3 solar cell. For the polymer absorber, a new IR-sensitive block copolymer, PBSeDTEG8, with photosensitivity up to 950 nm is utilized to broaden the photoresponse of the tandem solar cell. More importantly, this polymer:PCBM blend exhibits improved thermal stability, which can endure thermal annealing process while fabricating the perovskite subcell. Subsequently, this hybrid tandem solar cell based on perovskite/polymer subcells achieves the highest efficiency of 10.2%.
Starting Page	203
Ending Page	211
Page Count	9
File Format	HTM / HTML PDF
ISSN	20516347
Volume Number	2
Issue Number	2
Journal	Materials Horizons
DOI	10.1039/c4mh00237g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Solar cell Perovskite Photosensitivity Nucleation Polymer Band gap Copolymer Phenyl-C61-butyric acid methyl ester Solvent Nucleic acid thermodynamics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Electrical and Electronic Engineering Process Chemistry and Technology

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