Prof Henry Snaith FRS: Publications

Cross-Linkable Fullerene Derivatives for Solution-Processed n-i-p Perovskite Solar Cells

ACS ENERGY LETTERS 1:4 (2016) 648-653

Authors:

K Wojciechowski, I Ramirez, T Gorisse, O Dautel, R Dasari, N Sakai, JM Hardigree, S Song, S Marder, M Riede, G Wantz, HJ Snaith

Interfacial electron accumulation for efficient homo-junction perovskite solar cells

NANO ENERGY 28 (2016) 269-276

Authors:

Seulki Song, Byung Joon Moon, Maximilian T Horantner, Jongchul Lim, Gyeongho Kang, Min Park, Jin Young Kim, Henry J Snaith, Taiho Park

Charge-carrier dynamics in hybrid metal halide perovskites (Conference Presentation)

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics (2016) 99230d-99230d-1

Authors:

Rebecca L Milot, Waqaas Rehman, Giles E Eperon, Henry J Snaith, Michael B Johnston, Laura M Herz

Photon recycling in Lead-Iodide Perovskite solar cells (Conference Presentation)

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics (2016) 99370i-99370i-1

Authors:

Luis Pazos, Monika Szummilo, Robin Lamboll, Johannes M Richter, Micaela Crespo-Quesada, Mojtaba Abdi-Jalebi, Harry J Beeson, Milan Vrucinic, Mejd Alsari, Henry J Snaith, Bruno Ehrler, Richard H Friend, Felix Deschler

Investigating the role of 4-tert butylpyridine in perovskite solar cells

Advanced Energy Materials Wiley 7:1 (2016) 1601079

Authors:

Severin Habisreutinger, Nakita K Noel, Henry J Snaith, Robin J Nicholas

Abstract:

The majority of hole‐transporting layers used in n‐i‐p perovskite solar cells contain 4‐tert butylpyridine (tBP). High power‐conversion efficiencies and, in particular, good steady‐state performance appears to be contingent on the inclusion of this additive. On the quest to improve the steady state efficiencies of the carbon nanotube‐based hole‐transporter system, this study has found that the presence of tBP results in an extraordinary improvement in the performance of these devices. By deconstructing a prototypical device and investigating the effect of tBP on each individual layer, the results of this study indicate that this performance enhancement must be due to a direct chemical interaction between tBP and the perovskite material. This study proposes that tBP serves to p‐dope the perovskite layer and investigates this theory with poling and work function measurements.

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