Preparation of bipolar metal oxide charge transporting layers for perovskite photovoltaics

Mriganka Singh; Yu-Jung Lu; Gang Li; Hong-Cheu Lin; Chih Wei Chu

doi:10.1117/12.2594417

1 August 2021 Preparation of bipolar metal oxide charge transporting layers for perovskite photovoltaics

Mriganka Singh, Yu-Jung Lu, Gang Li, Hong-Cheu Lin, Chih Wei Chu

Proceedings Volume 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII; 118090Z (2021) https://doi.org/10.1117/12.2594417
Event: SPIE Organic Photonics + Electronics, 2021, San Diego, California, United States

Abstract

We present a high-energy wet-milling grinding method to prepare the NiO NPs at a room temperature and a low-temperature solution-processing method for the intercalation of Cs2CO3 into NiO, resulting in bipolar charge-carrier extraction capability for inverted (p–i–n) and conventional planar (n–i–p) PSCs. In comparison with the corresponding device featuring an HTL of NiO alone, the Cs2CO3-intercalated NiO layer exhibited enhanced electron extraction without sacrificing its hole extraction capability. This new material for bipolar charge-carrier extraction has the potential to serve as an inexpensive, scalable, and environmentally stable interconnection layer for emerging flexible tandem photovoltaic devices.

Conference Presentation

Citation Download Citation

Mriganka Singh, Yu-Jung Lu, Gang Li, Hong-Cheu Lin, and Chih Wei Chu "Preparation of bipolar metal oxide charge transporting layers for perovskite photovoltaics", Proc. SPIE 11809, Organic, Hybrid, and Perovskite Photovoltaics XXII, 118090Z (1 August 2021); https://doi.org/10.1117/12.2594417

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