Hydrazinium Salt as Additive To Improve Film Morphology and Carrier Lifetime for High-Efficiency Planar-Heterojunction Perovskite Solar Cells via One-Step Method | Zendy

Xin Zhang | Zendy; Sijian Yuan | Zendy; Haizhou Lu | Zendy; Huotian Zhang | Zendy; Pengfei Wang | Zendy; Xiaolei Cui | Zendy; Yin Zhang | Zendy; Qi Liu | Zendy; Jiao Wang | Zendy; Yiqiang Zhan | Zendy; Zhengyi Sun | Zendy; Wei Huang | Zendy

Open Access

Hydrazinium Salt as Additive To Improve Film Morphology and Carrier Lifetime for High-Efficiency Planar-Heterojunction Perovskite Solar Cells via One-Step Method

Author(s) -

Xin Zhang,

Sijian Yuan,

Haizhou Lu,

Huotian Zhang,

Pengfei Wang,

Xiaolei Cui,

Yin Zhang,

Qi Liu,

Jiao Wang,

Yiqiang Zhan,

Zhengyi Sun,

Wei Huang

Publication year - 2017

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.7b11168

Subject(s) - materials science , perovskite (structure) , heterojunction , planar , salt (chemistry) , carrier lifetime , morphology (biology) , optoelectronics , thin film solar cell , two step , perovskite solar cell , nanotechnology , solar cell , chemical engineering , silicon , chemistry , computer science , computer graphics (images) , engineering , biology , combinatorial chemistry , genetics

One-step solution process is the simplest method to fabricate organic-inorganic metal halide perovskite thin films, which however does not work well when employed in the planar-heterojunction (PHJ) solar cells due to the generally poor film morphology. Here we show that hydrazinium chloride can be used as an additive in the precursor solution to produce perovskite films featuring higher coverage and better crystallinity. The light absorption ability and charge carrier lifetime are both significantly improved accordingly. Under the optimal additive ratio, the average power conversion efficiency (PCE) of the inverted PHJ perovskite solar cells greatly increases by as much as 70%, and the champion device shows a satisfying PCE of 12.66%. These results suggest that N 2 H 5 Cl is a promising additive for fabricating high-efficiency perovskite solar cells via one-step method, which could be of interest in the future commercial solar cell industry.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research