Pyrolytic fragmentation-induced defect formation in formamidinium lead halide perovskite thin films and photovoltaic performance limits

Author:

Park Byung-wook1ORCID,Kim Geonhwa2,Kamal Chinnathambi34ORCID,Mun BongJin Simon5ORCID,Cappel Ute B.6ORCID,Rensmo Håkan6,Kim Ki-Jeong2,Odelius Michael7ORCID,Il Seok Sang1ORCID

Affiliation:

1. Department of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, Republic of Korea

2. Beamline Research Division, Pohang Accelerator Laboratory (PAL), Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea

3. Theory and Simulations Laboratory, Theoretical and Computational Physics Section, Raja Ramanna Centre for Advanced Technology, Indore, 452013, India

4. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai, 400094, India

5. Department of Physics and Photon Science, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea

6. Condensed Matter Physics of Energy Materials, Division of X-ray Photon Science, Department of Physics and Astronomy, Uppsala University, Box 516, Uppsala 75120, Sweden

7. Department of Physics, AlbaNova University Centre, Stockholm University, Stockholm 106 91, Sweden

Abstract

Defect formation through the fragmented formamidinium cation in lead iodide perovskite leads to the widening charge inversion layer and limited solar cell performance.

Funder

National Research Foundation of Korea

Vetenskapsrådet

Ministry of Science, ICT and Future Planning

Publisher

Royal Society of Chemistry (RSC)

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